🎛️ Gecko TSC-4-GE1 Electronic Keypad with Overlay (0200-007119) — 8-Button LCD Spa Side Control with Real-Time Clock for Gecko M-CLASS and TSPA Spa Systems

Genuine Gecko Alliance OEM 8-button LCD keypad — bundled kit for Gecko M-CLASS and TSPA spa control architectures. 8-Pin JST connector, 10-foot cable, included overlay 9916-100094, with real-time clock feature for installations with older Gecko spa pack ecosystems.

📋 Product Overview

The Gecko Alliance TSC-4-GE1 with overlay (part number 0200-007119) is the manufacturer’s 8-button LCD primary keypad bundled kit for Gecko’s M-CLASS and TSPA spa control systems — an older Gecko spa pack architecture distinct from the modern in.Link Y-Series and X-Series ecosystems. Also marketed as K-4 in some references and as BDLTSC4GE1 in Gecko’s bundle catalog, this is the complete kit including both the TSC-4 keypad AND the standard 8-button overlay (Gecko 9916-100094) for ready-to-install service repair.

The TSC-4’s defining UX feature is its dedicated 8-button layout with built-in real-time clock: Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode — supporting 2-pump systems with blower configuration plus Gecko’s M-CLASS programming features. The dedicated Mode button cycles through operating modes (Standard / Economy / Sleep), the Prog button accesses configuration menus, and the included LCD display shows the current and set water temperature plus a real-time clock — a distinctive feature of this M-CLASS era keypad. The 7″ × 3-1/4″ rectangular form factor with rounded sides fits comfortably in modern hot tub shells while accommodating the larger button complement.

This 0200-007119 listing connects through the 8-pin JST plug with a 10-foot cable to Gecko’s M-CLASS or TSPA spa pack. Compatible Gecko M-CLASS circuit boards include 59-337-1250, 59-337-1255, 59-337-1260, and 59-337-1265. The TSC-4 directly replaces the older TSC-21 keypad and consolidates multiple older Gecko service references including 0201-007119, 0201-007148, 3-00-7142, 301767, 9735-259, and 844033. Used as factory-original on Coleman Spas (cross-reference 107235) and Artesian Spas (cross-reference OP33-0088-40 / 33-0410-40), plus many other premium spa brands using Gecko M-CLASS or TSPA controls. Important: This is NOT a modern Gecko in.Link keypad — it’s the older M-CLASS / TSPA architecture with 8-pin JST connector. Verify your spa’s control system before ordering. Genuine Gecko Alliance OEM, manufacturer warranty.

⭐ Key Features

• ✅ Genuine Gecko Alliance OEM — Authentic Canadian-manufactured M-CLASS service keypad
• ✅ Bundled Kit (Panel + Overlay Included) — Ready to install out-of-the-box, includes overlay 9916-100094
• ✅ 8-Button LCD Layout — Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode
• ✅ Real-Time Clock Feature — Distinctive M-CLASS feature for time-based programming
• ✅ Dedicated Mode Button — Cycle between Standard / Economy / Sleep modes
• ✅ Dedicated Prog Button — Direct access to programming menu
• ✅ Dedicated Blower Button — Direct on/off control of spa blower
• ✅ 2-Pump Configuration with Blower Support — Designed for premium TSPA spa configurations
• ✅ Compatible with Gecko M-CLASS Spa Pack Systems — Older Gecko architecture (distinct from in.Link Y/X-Series)
• ✅ Compatible with TSPA Spa Systems — Multi-platform support
• ✅ Compatible Circuit Boards — 59-337-1250, 59-337-1255, 59-337-1260, 59-337-1265
• ✅ Compact 7″ × 3-1/4″ Form Factor — Modern proportions that fit most spa shells
• ✅ Standard 10-Foot Cable — Adequate reach for typical spa cabinet routing
• ✅ 8-Pin JST Plug Connector — M-CLASS / TSPA-specific connection
• ✅ Direct Replacement for TSC-21 — Modern successor to the older TSC-21 keypad
• ✅ Used on Coleman Spas, Artesian Spas — Confirmed factory installation
• ✅ Coleman Spas Cross-Reference 107235 — Direct OEM replacement
• ✅ Artesian Spas Cross-Reference OP33-0088-40 / 33-0410-40 — Direct OEM replacement
• ✅ Manufacturer Warranty — Backed by Gecko Alliance

⚙️ Technical Specifications

Specification	Value
Manufacturer	Gecko Alliance (Quebec, Canada)
Model	TSC-4-GE1 / TSC-4 / K-4
Manufacturer Part Number (Bundle SKU)	0200-007119
Internal Keypad SKU (without overlay)	0201-007148
Alternate References	BDLTSC4GE1, 3-00-7142, 0201-007119, 301767, 9735-259, 844033
Topside Type	Electronic — Primary keypad with real-time clock
Display Type	LCD with real-time clock display
Number of Buttons	8
Button Layout	Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode
System Capability	2-pump system with blower + clock + mode programming
Compatible Spa Pack Systems	Gecko M-CLASS systems and TSPA spa systems
Compatible Circuit Boards	59-337-1250, 59-337-1255, 59-337-1260, 59-337-1265
Cable Length	10 ft (~3 m)
Connector Type	8-Pin JST Plug (M-CLASS / TSPA-specific)
Panel Shape	Rectangle
Panel Dimensions	7″ × 3-1/4″ (17.8 × 8.25 cm)
Standard Overlay Included	Yes — Gecko 9916-100094
Replaces	TSC-21, 0201-007119, 0201-007148, 3-00-7142, 301767, 9735-259, BDLTSC4GE1, OP33-0410-40, 33-0410-40, 844033
Coleman Spas Cross-Reference	107235
Artesian Spas Cross-Reference	OP33-0088-40 / OP33-0410-40 / 33-0410-40
Color	White / gray (matching M-CLASS aesthetic)
Warranty	Per Gecko Alliance manufacturer warranty

📌 Always confirm cutout size against your existing keypad opening before ordering — small variations exist between spa shell designs. The 8-pin JST connector is specific to the M-CLASS / TSPA architecture and is NOT interchangeable with modern Gecko in.Link connectors.

🔄 Compatibility Guide

This Keypad is Compatible With:

Spa Pack Family	Models
Gecko M-CLASS	All M-CLASS spa pack variants
TSPA Spa Systems	TSPA-compatible spa control systems

📌 Critical: The TSC-4-GE1 uses Gecko’s older M-CLASS / TSPA architecture with 8-pin JST connector — completely separate from the modern Gecko in.Link Y-Series and X-Series ecosystems used by current keypads (in.k200, in.k300, in.k450, in.k500, in.k600, in.k800, in.k1000) and from the Gecko SSPA architecture used in newer Dimension One @Home spas. If your spa uses the M-CLASS / TSPA control system with 8-pin JST connection, this is your factory-equivalent keypad.

Compatible Gecko M-CLASS Circuit Boards:

The TSC-4 works with the following Gecko M-CLASS spa pack circuit boards:

Circuit Board	Notes
59-337-1250	Standard M-CLASS variant
59-337-1255	M-CLASS variant
59-337-1260	M-CLASS variant
59-337-1265	M-CLASS variant

Used As Factory-Original on These Spa Brands:

• ✅ Coleman Spas — Confirmed factory installation (cross-reference 107235)
• ✅ Artesian Spas — Confirmed factory installation (cross-reference OP33-0088-40 or OP33-0410-40 / 33-0410-40)
• ✅ Many other premium spa brands using Gecko M-CLASS or TSPA control systems

Replaces These Older Part Numbers:

The TSC-4-GE1 (0200-007119) is the modern current-production replacement for several older Gecko service SKUs and OEM cross-references:

• ✅ 0200-007119 (current Gecko Alliance manufacturer bundle SKU — this listing)
• ✅ TSC-21 (older Gecko keypad — directly replaced by TSC-4)
• ✅ 0201-007119 (older keypad-only reference)
• ✅ 0201-007148 (alternate keypad-only reference)
• ✅ 3-00-7142 (alternate distributor cross-reference)
• ✅ 301767 (alternate distributor reference)
• ✅ 9735-259 (alternate distributor reference)
• ✅ BDLTSC4GE1 (former Gecko bundle reference)
• ✅ OP33-0410-40 / 33-0410-40 (Artesian Spas cross-references)
• ✅ 844033 (alternate distributor cross-reference)
• ✅ 107235 (Coleman Spas brand cross-reference)
• ✅ OP33-0088-40 (Artesian Spas brand cross-reference)

Companion Keypad Variants:

Other Gecko M-CLASS / TSPA keypads in the same ecosystem:

Variant	Part Number	Notes
TSC-4-GE1 (this listing)	0200-007119	8-button bundled kit (panel + overlay 9916-100094)
TSC-4-10K	0201-007044	10-button 3-pump variant (overlay 9916-100761): Pump 3 / Pump 1 / Pump 2 / Blower / Light / Clock / Economy / Filter / Up / Down
TSC-8 (BDLTSC8GE1)	0200-007113	8-button M-CLASS variant (overlay 9916-100130) — different button layout
TSC-8-10K	(Gecko catalog)	10-button M-CLASS variant: Power / Pump 1 / Pump 2 / Light / Up / Economy / Pump 3 / Blower / Filter / Down
TSC-21	(older — replaced)	Predecessor to the TSC-4
TSC-35-GE1	0202-007143	S-CLASS variant (different ecosystem) — NOT compatible with M-CLASS

📌 Within the M-CLASS / TSPA family, choose based on your spa’s pump count and button needs: TSC-4-GE1 (this listing) for 2-pump with blower (8 buttons), or TSC-4-10K for 3-pump configurations (10 buttons). The TSC-8 family is a different M-CLASS variant with its own button layout.

NOT Compatible With:

• ❌ Modern Gecko in.Link Y-Series ecosystems (in.yj, in.ye, in.yt) — Different connector entirely
• ❌ Modern Gecko in.Link X-Series ecosystems (in.xe, in.xm, in.xm2) — Different connector entirely
• ❌ Gecko SSPA controllers (used on Dimension One Spas with 01560-XXX panels) — Different connector
• ❌ Gecko MSPA-1 / MSPA-MP (used on vintage D1 spas with TSC-24) — Different architecture and connectors
• ❌ Gecko S-CLASS systems (TSC-35 ecosystem) — Different M/S-Class distinction
• ❌ Balboa spa pack systems — Different ecosystem entirely (RJ45/Molex connectors)
• ❌ HydroQuip, ACC, or non-Gecko control systems — Different connectors and protocols
• ❌ Pneumatic / air-button (Tecmark Command Center, EasyPak) systems

⚠️ Compatibility Verification: The TSC-4-GE1 uses a specific 8-pin JST plug designed for M-CLASS / TSPA spa pack ports. If your existing keypad has an in.Link connector, RJ45 (Ethernet-style) plug, Molex connector, 4-pin or 6-pin connector, or 8-pin white flat plug, your spa pack is NOT compatible with this TSC-4-GE1.

How to Verify Compatibility:

📍 Open your spa cabinet and locate the spa pack — look for a Gecko Alliance label and confirm it’s an M-CLASS or TSPA model 📍 Check that your existing keypad cable has an 8-Pin JST plug (NOT in.Link, NOT RJ45, NOT Molex) 📍 Compare your existing keypad’s circuit board number to the compatible list (59-337-1250, 59-337-1255, 59-337-1260, 59-337-1265) 📍 Compare your old keypad dimensions to 7″ × 3-1/4″ 📍 Verify your old keypad has 8 buttons with the layout: Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode (or replaceable layout via overlay 9916-100094) 📍 Look for any of the older part numbers (0201-007119, 0201-007148, 3-00-7142, BDLTSC4GE1, TSC-21, 844033) on your existing keypad 📍 Coleman Spas owners — check for cross-reference 107235 📍 Artesian Spas owners — check for cross-reference OP33-0088-40 or OP33-0410-40 / 33-0410-40 📍 If you have a 3-pump spa, you may need the TSC-4-10K (0201-007044) instead — verify pump count 📍 Contact Parts4Tubs with your spa pack model number and circuit board number if you’re unsure

🔘 Button Functions & Display

The TSC-4-GE1 has 8 physical buttons. The included overlay (Gecko 9916-100094) provides this layout:

8-Button Standard Layout (Overlay 9916-100094):

Button	Function
Up	Increase set water temperature
Pump 1	Jet pump 1 on/off (and 2-speed cycle if applicable)
Pump 2	Jet pump 2 on/off (and 2-speed cycle if applicable)
Prog	Access programming menu (clock, filter cycles, modes, settings)
Down	Decrease set water temperature
Blower	Spa blower on/off
Light	Spa light on/off
Mode	Cycle between Standard / Economy / Sleep modes

📌 The TSC-4’s defining UX feature is the combination of dedicated Mode and Prog buttons for direct access to mode-cycling and programming, plus the dedicated Blower button for premium 2-pump+blower configurations. The real-time clock displayed on the LCD is unique to the M-CLASS ecosystem and supports time-based filtration scheduling.

LCD Display:

The TSC-4’s LCD display shows:

Display Element	Shows
Temperature digits	Current and set water temperature
Real-time clock	Current time of day (distinctive M-CLASS feature)
Pump 1, Pump 2 indicators	Active state for each jet pump
Blower indicator	Spa blower active state
Light state	Spa light on/off
Heater state	Heater energized status
Filter cycle	Filtration scheduling status
Mode indicator	Standard / Economy / Sleep mode status
Programming indicators	Configuration menu access
Error codes	Diagnostic codes from the M-CLASS spa pack

Real-Time Clock Feature:

The TSC-4’s real-time clock is a distinctive feature of the M-CLASS ecosystem — providing time-of-day display and supporting time-based filtration scheduling (start filter cycles at specific times of day, set Economy Mode for nighttime hours, etc.). The clock is set through the Prog button menu and displayed on the LCD alongside temperature.

🛠️ Installation Guide

Before Installation:

• ⚠️ Disconnect power at the GFCI breaker before any work
• ⚠️ Confirm your spa pack is a Gecko M-CLASS or TSPA system with one of the compatible circuit boards (59-337-1250, 59-337-1255, 59-337-1260, 59-337-1265)
• ⚠️ Verify the 10-foot cable will reach from the keypad cutout to the spa pack
• ⚠️ Verify the existing connector is 8-Pin JST plug (NOT in.Link, NOT RJ45, NOT Molex, NOT older 8-pin white flat plug)
• ⚠️ Confirm your spa shell cutout accommodates a 7″ × 3-1/4″ rectangular keypad
• ⚠️ Confirm your spa configuration matches: 2 pumps + blower (or fewer with unused buttons)

Installation Steps:

1. Power Down — Turn off all power to your hot tub at the GFCI / disconnect (safety first)
2. Open the spa cabinet and locate the 8-pin JST cable on the M-CLASS / TSPA spa pack
3. Disconnect the old keypad cable from the spa pack’s keypad port
4. Remove the old keypad from the spa shell cutout
5. Prepare the Surface — Clean the mounting area thoroughly with rubbing alcohol and allow it to dry completely
6. Apply the included overlay (9916-100094) to the keypad face — align carefully over the 8 button positions and LCD display window (including the clock display area)
7. Route the new cable through the cabinet to the spa pack
8. Plug the new 8-pin JST connector into the spa pack’s keypad port
9. Apply silicone sealant around the keypad edge if recommended by your spa manufacturer
10. Mount the new keypad in the spa shell cutout — press firmly into place
11. Restore power at the breaker
12. Set the real-time clock — Use the Prog button to access the clock setting menu (initial setup of M-CLASS systems)
13. Test all functions — All 8 buttons (Up, Pump 1, Pump 2, Prog, Down, Blower, Light, Mode); verify LCD display lights up clearly with temperature, clock, and indicators operating; confirm all spa functions activate

Mounting:

Requirement	Specification
Panel size	7″ × 3-1/4″ (rectangle)
Mounting type	Drop-in / surface-mounted with sealant

⚠️ Professional installation by a competent individual or tradesman trained in spa equipment is recommended. All work must comply with the National Electrical Code (NEC) and local codes. Topside controls cannot be returned once opened or installed — verify fitment before opening packaging.

⚡ Wiring & Connection

Connector Information:

Specification	Detail
Connector Type	8-Pin JST Plug (M-CLASS / TSPA-specific)
Cable Length	10 ft (~3 m)
System Voltage	Low-voltage signal — works with both 120V and 240V M-CLASS spa pack configurations

Connection Location:

Plugs into the 8-pin JST keypad port on Gecko M-CLASS or TSPA spa packs.
The connector is specific to M-CLASS / TSPA architecture and is NOT
interchangeable with modern Gecko in.Link, RJ45, or Molex connectors.
Compatible M-CLASS circuit boards: 59-337-1250, 59-337-1255, 59-337-1260,
59-337-1265.

⚠️ Never force the connector. The 8-pin JST plug should slide in cleanly. If it doesn’t fit, your spa pack may use the modern in.Link connector (use a Y-Series/X-Series keypad like in.k200, in.k300, in.k450, etc.), be a Balboa system (RJ45/Molex), be a Dimension One @Home/SSPA system (different JST 8-Pin variant — use 01560-345), or use vintage D1 MSPA architecture (4-pin + 6-pin — use TSC-24 / 01580-0001) — verify before proceeding.

🔍 Troubleshooting

Common Issues:

Problem	Possible Cause	Solution
Blank LCD display	No power or loose connection	Verify breaker on; reseat the 8-pin JST plug at the spa pack
Real-time clock not displaying	Initial setup not completed	Use Prog button menu to set the clock
Error codes shown	M-CLASS spa pack issue (sensor, flow, heater)	Refer to your M-CLASS / TSPA TechBook for code meanings
Buttons unresponsive	Worn overlay or moisture intrusion	Inspect overlay for wear or water damage
Wrong functions when buttons pressed	Wrong overlay applied (not 9916-100094)	Verify overlay matches the standard 8-button TSC-4 layout
LCD icons missing or partial	Display fault	Replacement may be needed
Foggy display	Internal moisture from a failed seal	Replace the keypad; check overlay seal
Pump 1 or Pump 2 button doesn’t activate pump	M-CLASS pump configuration issue	Verify spa pack pump output is enabled
Blower button doesn’t activate blower	Spa configured without blower output	Verify M-CLASS spa pack has blower output enabled
Connector won’t fit	Wrong connector type — 8-pin JST is M-CLASS specific	Verify control system architecture before ordering
Mode button doesn’t change modes	Spa pack mode configuration	Verify M-CLASS firmware supports keypad mode-cycling
Programming menu inaccessible	Wrong button combination	Refer to TSC-4 documentation for correct programming sequence

Error Codes:

Error codes are generated by the M-CLASS / TSPA spa pack, not the keypad.
Refer to your specific Gecko M-CLASS or TSPA system manual for code definitions.
Common codes: HL (high limit), HH (heater high), Sn (sensor), FL (flow).

🔧 Maintenance & Care

Routine Care:

Task	Frequency
Wipe keypad face with damp cloth	Weekly
Check button response (all 8 buttons)	Monthly
Verify LCD display and real-time clock	Monthly
Verify each Pump and Blower button controls respective output	Monthly
Inspect cable connections	Annually
Inspect overlay for wear and water seal	Annually

DO NOT:

• ❌ Use abrasive cleaners or scouring pads
• ❌ Submerge the keypad in water or chemicals
• ❌ Use solvent-based cleaners (acetone, lacquer thinner, etc.)
• ❌ Press buttons with sharp objects (pens, keys, fingernails)

Overlay Replacement:

The 0200-007119 ships with the standard 9916-100094 overlay. If your overlay becomes worn, faded, peeling, or buttons are unresponsive due to overlay damage, replacement overlays are available separately:

Overlay Layout	Part Number
Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode (standard 8-button TSC-4)	Gecko 9916-100094

📌 The 9916-100094 overlay is the TSC-4-specific overlay — it is NOT interchangeable with overlays for in.k200, in.k300, in.k450, TSC-8, TSC-21, TSC-24, TSC-35, or other Gecko keypad families.

🎯 Ideal Applications

Application	Suitability
🎛️ Replacement for failed TSC-4 keypad	✅ Direct fit
🎛️ Spas with Gecko M-CLASS spa pack systems	✅ Direct factory equivalent
🎛️ Spas with TSPA spa control systems	✅ Direct factory equivalent
🎛️ 2-pump spas with blower configuration	✅ Designed for this configuration
🎛️ Coleman Spas with original 107235 keypad	✅ Direct OEM replacement
🎛️ Artesian Spas with original OP33-0088-40, OP33-0410-40, or 33-0410-40 keypad	✅ Direct OEM replacement
🎛️ Owners replacing legacy TSC-21 keypads	✅ Direct successor — same M-CLASS ecosystem
🎛️ Owners replacing older 0201-007119, 0201-007148, 3-00-7142, BDLTSC4GE1, or 844033 SKUs	✅ Modern current-production replacement
🎛️ Spas with compatible M-CLASS circuit boards (59-337-1250/1255/1260/1265)	✅ Direct compatibility
🎛️ Owners wanting time-based filtration scheduling	✅ Real-time clock feature
🎛️ Authorized spa repair shops servicing Gecko M-CLASS-equipped spas	✅ Service inventory choice
🎛️ Spas requiring 3-pump control	❌ Use TSC-4-10K (0201-007044) instead
🎛️ Modern Gecko in.Link Y-Series or X-Series spas	❌ NOT compatible — use Y/X-Series keypad (in.k200 to in.k1000)
🎛️ Gecko SSPA-equipped Dimension One @Home spas	❌ NOT compatible — use 01560-345 instead
🎛️ Vintage D1 spas with MSPA-MP architecture	❌ NOT compatible — use TSC-24 / 01580-0001 instead
🎛️ Gecko S-CLASS systems	❌ NOT compatible — use TSC-35-GE1 (0202-007143) instead
🎛️ Balboa-equipped spas	❌ NOT compatible — different ecosystem
🎛️ Pneumatic / air-button systems	❌ NOT compatible

Common Replacement Scenarios:

• LCD has gone blank, foggy, or shows partial segments
• One or more of the 8 buttons no longer responds
• Real-time clock display has failed
• Internal water damage from a failed overlay seal
• Cable damaged or pulled during cabinet service
• Owner of a Coleman Spa or Artesian Spa needing factory-quality replacement
• Owner of an aging spa with the discontinued TSC-21 needing the modern equivalent
• Service shops keeping inventory for M-CLASS / TSPA spa repairs across multiple spa brands
• Premium spa builders supporting older M-CLASS-equipped spas through their service lifecycle

🤔 Frequently Asked Questions

Q: Is the overlay included? A: Yes — this 0200-007119 listing is the bundled kit with both the TSC-4 keypad AND the standard 8-button overlay (Gecko 9916-100094) included. The overlay shows: Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode. Ready to install out-of-the-box.

Q: What is “M-CLASS” or “TSPA”? A: M-CLASS is one of Gecko Alliance’s older spa pack control architectures — predecessor to the modern Gecko in.Link Y-Series and X-Series ecosystems. The TSPA (TSC-Spa) family is a related platform. M-CLASS keypads (TSC-4, TSC-8, TSC-21) use the 8-pin JST connector and were widely used on premium spas in the late 1990s through the 2000s. If your spa is from this era and uses the 8-pin JST connection, this TSC-4 is your factory-equivalent keypad.

Q: How is the TSC-4 different from modern Gecko in.Link keypads (in.k200, in.k300, in.k450)? A: They’re for completely different Gecko ecosystems:

• TSC-4 (this listing) — Gecko M-CLASS / TSPA architecture, 8-pin JST connector, real-time clock feature, older ecosystem
• Modern in.Link keypads (in.k200, in.k300, in.k450, in.k500, in.k600, in.k800, in.k1000) — Gecko Y-Series / X-Series ecosystems, in.Link connector, modern features

The two ecosystems are NOT interchangeable. Verify your spa’s spa pack architecture and connector type before ordering.

Q: How is the TSC-4 different from the TSC-8? A: Both are 8-button M-CLASS keypads with similar positioning, but they have different button layouts and overlays:

• TSC-4 (this listing — 0200-007119) — Standard layout: Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode (overlay 9916-100094)
• TSC-8 (BDLTSC8GE1 / 0200-007113) — Different layout: Pump 1 / Pump 2 / etc. (overlay 9916-100130)

Verify your existing keypad’s button layout to choose the right replacement.

Q: What is the TSC-4-10K? A: The TSC-4-10K (0201-007044) is the 10-button 3-pump variant of the TSC-4 family — designed for premium spas with 3 jet pumps. The 10-button layout: Pump 3 / Pump 1 / Pump 2 / Blower / Light / Clock / Economy / Filter / Up / Down (overlay 9916-100761). If you have a 3-pump M-CLASS spa, choose the TSC-4-10K instead of this 8-button TSC-4.

Q: What is “TSC-21” and is the TSC-4 the right replacement? A: TSC-21 is an older Gecko M-CLASS keypad that was directly replaced by the TSC-4. If your existing keypad is a TSC-21, the TSC-4-GE1 (this listing) is the modern current-production replacement.

Q: My old keypad part says 0201-007119, 0201-007148, 3-00-7142, BDLTSC4GE1, OP33-0410-40, 33-0410-40, or 844033 — is this the same? A: Yes — all of these are alternate references for the TSC-4-GE1:

• 0201-007119 = older keypad-only reference
• 0201-007148 = alternate keypad-only reference
• 3-00-7142 = alternate distributor cross-reference
• BDLTSC4GE1 = former Gecko bundle reference
• OP33-0410-40 / 33-0410-40 = Artesian Spas cross-references
• 844033 = alternate distributor cross-reference

The 0200-007119 (this listing) is the modern current-production version.

Q: My Coleman Spa has cross-reference 107235 — is this the right replacement? A: Yes — the TSC-4-GE1 (0200-007119) is the direct factory equivalent for the Coleman Spas 107235 topside cross-reference. Coleman Spas owners can identify their existing keypad by this Coleman-specific part number.

Q: My Artesian Spa has cross-reference OP33-0088-40 (or OP33-0410-40 / 33-0410-40) — is this the right replacement? A: Yes — the TSC-4-GE1 (0200-007119) is the direct factory equivalent for these Artesian Spas cross-references. Artesian Spas owners can identify their existing keypad by these Artesian-specific part numbers.

Q: What are the compatible M-CLASS circuit boards? A: The TSC-4 works with these Gecko M-CLASS spa pack circuit boards:

• 59-337-1250
• 59-337-1255
• 59-337-1260
• 59-337-1265

If your spa pack has one of these circuit board numbers stamped on it, the TSC-4-GE1 is compatible.

Q: What is the real-time clock feature for? A: The TSC-4’s real-time clock is a distinctive M-CLASS feature that displays the current time of day on the LCD and supports time-based filtration scheduling — start filter cycles at specific times, automatically switch to Economy Mode for nighttime hours, etc. This is a more sophisticated feature than the simple temperature-only displays on entry-level keypads.

Q: Will this work with my Balboa spa pack? A: No — the TSC-4-GE1 is strictly for Gecko M-CLASS or TSPA spa packs. Balboa systems use different connectors (RJ45 for VS/GS, Molex for BP/EL/GL) and different communication protocols. If you have a Balboa system, you’ll need a Balboa topside (VL series, ML series, or TP series).

Q: How do I tell if my spa pack is M-CLASS, S-CLASS, or another Gecko architecture? A: Look at the spa pack inside the equipment cabinet:

• M-CLASS — Labeled M-Class or compatible with TSC-4, TSC-8, TSC-4-10K, TSC-8-10K keypads (8-pin JST connector)
• S-CLASS — Labeled S-Class or compatible with TSC-35 keypad (separate ecosystem)
• MSPA-1 / MSPA-MP — Used in vintage Dimension One Spas with TSC-24 keypad (4-pin + 6-pin connectors)
• Modern Y-Series / X-Series — Labeled in.yj/in.ye/in.yt/in.xe/in.xm/in.xm2 (in.Link connector)
• SSPA — Used in Dimension One @Home spas with 01560-XXX panels (different JST 8-Pin connector)

Q: Can I install this myself? A: Yes — basic DIY installation is straightforward:

1. The 8-pin JST connector only fits one way
2. The overlay is included and self-adhesive
3. Step-by-step instructions are documented in the Gecko M-CLASS documentation

The hardest part is safely shutting off power at the GFCI breaker — if you’re not comfortable with that, hire a licensed electrician for the power-off step at minimum.

Q: Will this work with my 120V or 240V spa? A: Yes — the keypad runs on low-voltage signal from the spa pack, so it works regardless of whether your Gecko M-CLASS spa pack is wired for 115V or 230V service.

Q: How do I set the real-time clock? A: After installation and initial power-up, use the Prog button to access the programming menu. Navigate to the clock setting option and use Up/Down to adjust hours and minutes. Refer to your Gecko M-CLASS / TSPA documentation for the specific programming sequence.

Q: What warranty is included? A: This part is covered by the Gecko Alliance manufacturer warranty. Topside controls are not returnable once opened or installed.

Q: Do you ship across the US? A: Yes — Parts4Tubs ships to all 50 states with fast US delivery.

📥 Downloads & Resources

TSC-4 (K-4) Topside Keypad Manual

Andi’s Top Tip – TSC Topside Controls -Theses topsides can also be found connected to some Hydroquip and Spa Builders control systems.They are also used on the blue SMD spa packs in many Gulf Coast spas. Often found on older spas from Gulf Coast Spa, Hydropool amongst others. TSC-35 – 6 Button Topside Control used on Gecko Spa Control Packs. Works with S-CLASS Systems TSC-19 – 4 Button Topside Control used on Gecko Spa Control Packs. Works with S-CLASS Systems TSC-18 – 4 Button Topside Control used on Gecko Spa Control Packs. Works with S-CLASS Systems TSC-9 – 4 Button Topside Control used on Gecko Spa Control Packs. Works with S-CLASS Systems TSC-8 – 8 Button Topside Control used on Gecko Spa Control packs. Works with M-CLASS/MSPA Systems TSC-4 – 8 Button Topside Control used on Gecko Spa Control packs. Works with M-CLASS Systems TSC-3 – 4 Button Topside Control used on Gecko Spa Control Packs. Works with S-CLASS Systems

🏆 Why Choose the Gecko TSC-4-GE1 Bundled Keypad

• ✅ Genuine Gecko Alliance OEM — Authentic Canadian-manufactured M-CLASS service keypad
• ✅ Bundled kit — Panel + overlay (9916-100094) included, ready to install out-of-the-box
• ✅ 8-button LCD layout — Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode
• ✅ Real-time clock feature — Distinctive M-CLASS feature for time-based filtration scheduling
• ✅ Dedicated Mode and Prog buttons — Direct access to mode-cycling and programming
• ✅ Dedicated Blower button — Premium 2-pump+blower configuration support
• ✅ Compact 7″ × 3-1/4″ form factor — Modern proportions that fit most spa shells
• ✅ Compatible with multiple M-CLASS circuit boards — 59-337-1250, 59-337-1255, 59-337-1260, 59-337-1265
• ✅ Standard 10-foot cable — Adequate reach for typical spa cabinet routing
• ✅ 8-Pin JST plug connector — M-CLASS / TSPA-specific connection
• ✅ Direct replacement for TSC-21 and multiple older Gecko service SKUs
• ✅ Used on Coleman Spas (107235), Artesian Spas (OP33-0088-40, OP33-0410-40, 33-0410-40) — Authentic OEM factory installation
• ✅ Backed by Gecko Alliance warranty — Manufacturer support

🇺🇸 Why Buy From Parts4Tubs

• ✅ Fast US shipping to all 50 states
• ✅ Expert advice from spa specialists, including older M-CLASS / TSPA system experience
• ✅ Compatibility assistance — send us your spa pack model and circuit board number to confirm TSC-4 fit
• ✅ Full manufacturer warranty support
• ✅ Easy returns within 30 days (unopened keypads only — topsides cannot be returned once installed)
• ✅ Genuine OEM Gecko Alliance parts
• ✅ Compatible TSC-4-10K (3-pump) and TSC-8 alternative also available for different M-CLASS configurations

⭐ Summary

The Gecko Alliance TSC-4-GE1 with overlay (part number 0200-007119) is the manufacturer’s 8-button LCD primary keypad bundled kit for Gecko M-CLASS and TSPA spa control systems — an older Gecko spa pack architecture distinct from the modern in.Link Y-Series and X-Series ecosystems. With its 8 physical buttons (Up / Pump 1 / Pump 2 / Prog / Down / Blower / Light / Mode), LCD display with real-time clock feature, dedicated Mode and Prog buttons, dedicated Blower button, and compact 7″ × 3-1/4″ form factor, the TSC-4 supports premium 2-pump-with-blower configurations through Gecko’s M-CLASS or TSPA spa pack architectures via the 8-Pin JST plug with 10-foot cable. Compatible with Gecko M-CLASS circuit boards 59-337-1250, 59-337-1255, 59-337-1260, and 59-337-1265. The 0200-007119 is the modern current-production replacement for the older TSC-21 keypad and consolidates multiple older Gecko service references including 0201-007119, 0201-007148, 3-00-7142, BDLTSC4GE1, 301767, 9735-259, and 844033. Used as factory-original on Coleman Spas (cross-reference 107235) and Artesian Spas (cross-reference OP33-0088-40 / OP33-0410-40 / 33-0410-40), and many other premium spa brands using Gecko M-CLASS or TSPA controls. Includes the standard overlay (Gecko 9916-100094) bundled in the box. Important: This is NOT a modern Gecko in.Link keypad — it’s the older M-CLASS / TSPA architecture with 8-pin JST connector. For 3-pump configurations within the same M-CLASS family, use TSC-4-10K (0201-007044) instead. NOT compatible with modern Gecko in.Link Y-Series or X-Series, Gecko SSPA, Gecko MSPA-MP, Gecko S-CLASS, Balboa, HydroQuip, ACC, or other non-M-CLASS control systems. Order today from Parts4Tubs for fast US shipping and expert support.

What is a Hot Tub Keypad Overlay?

A hot tub keypad overlay, also known as a spa control panel overlay, is a protective and decorative component used in hot tubs and spas. It typically consists of a thin, clear or colored piece of material, often made of durable plastic or silicone, that is designed to cover and protect the control panel or keypad of the hot tub.

Here's what a hot tub keypad overlay does:

1. Protection: The overlay acts as a protective barrier for the underlying control panel or keypad. It shields the sensitive electronics and buttons from exposure to water, chemicals, UV rays, and physical damage, such as scratches or abrasions. This helps extend the lifespan of the control panel.

2. Enhancement: Many overlays are designed with labels, graphics, and button outlines that enhance the appearance of the control panel. They often include icons or text that provide clear instructions for operating the hot tub, making it user-friendly, especially for those who may not be familiar with the hot tub's functions.

3. Customization: Hot tub keypad overlays can be customized to match the branding or style of the hot tub manufacturer. They may feature the manufacturer's logo, model name, or specific design elements. Some hot tub owners choose to customize overlays to add a personal touch to their spa.

4. Ease of Cleaning: The overlay is easier to clean and maintain than the underlying control panel. Spills, dirt, or chemical residues that come into contact with the overlay can be wiped away without affecting the control panel's functionality.

5. Replacement: Over time, keypad overlays may wear out or become damaged due to exposure to harsh spa conditions. Fortunately, they are relatively easy and cost-effective to replace when needed, allowing you to refresh the appearance of your hot tub's control panel.

When replacing a hot tub keypad overlay, it's essential to choose one that is compatible with your hot tub's make and model to ensure that the button layout and functions match the original control panel. This compatibility ensures that the overlay fits correctly and accurately represents the hot tub's settings.

In summary, a hot tub keypad overlay serves as a protective, decorative, and informative layer for the control panel, enhancing the user experience and prolonging the life of the hot tub's control system.

How do you replace a hot tub keypad overlay?

Replacing a hot tub keypad overlay is generally a straightforward process that can be done with some basic tools and careful attention. Here's a step-by-step guide on how to replace a hot tub keypad overlay:

Tools and Materials Needed:

• New keypad overlay (ensure it's compatible with your hot tub model)
• Screwdriver (usually a Phillips-head)
• Mild cleaner or rubbing alcohol
• Soft cloth or paper towels

Step-by-Step Instructions:

1. Turn Off Power: Start by turning off the power to your hot tub. This is essential for safety reasons.

2. Access the Control Panel: Depending on your hot tub's design, you may need to remove a cover or panel to access the control panel. Use a screwdriver to remove any screws or fasteners holding the cover in place.

3. Remove the Old Overlay: Carefully peel off the old keypad overlay. Begin at one corner and gently lift it away from the control panel. Take your time and be cautious not to damage the control panel or its components.

4. Clean the Control Panel: After removing the old overlay, use a soft cloth or paper towel and a mild cleaner or rubbing alcohol to clean the control panel's surface. This step ensures that the new overlay adheres properly and looks clean.

5. Prepare the New Overlay: Ensure that the new hot tub keypad overlay is clean and free of any dust or debris. If the new overlay has an adhesive backing, remove the protective film to expose the adhesive.

6. Align and Apply the New Overlay: Carefully align the new overlay with the control panel. Make sure it matches the button layout and design of the control panel. Begin by aligning one corner and gradually press the overlay onto the control panel's surface, working your way across. Smooth out the overlay to prevent air bubbles or wrinkles.

7. Secure the Control Panel Cover: If you had to remove a cover or panel to access the control panel, reattach it using the screws or fasteners you removed earlier.

8. Turn On Power: Once the new overlay is securely in place, and the control panel cover is reattached, turn the power back on at the main circuit breaker.

9. Test the Keypad: Test the keypad buttons to ensure they function correctly. Press each button to verify that it corresponds to the correct function on the hot tub.

10. Final Cleaning: After installation and testing, wipe down the new overlay with a clean, dry cloth to remove any fingerprints or residue.

You've now successfully replaced your hot tub's keypad overlay. Make sure to use a compatible overlay, and exercise caution during the replacement process to avoid damaging the control panel.

 

Gecko Alliance is a well-known manufacturer of advanced control systems and equipment for the spa and hot tub industry. Here's an overview of their history and the products they manufacture:

History: Gecko Alliance was founded in 1992 in Canada. Over the years, the company has established itself as a leading innovator in the field of spa and hot tub controls. They've consistently developed cutting-edge technology to enhance the user experience and improve the efficiency of hot tubs and spas.

Products: Gecko Alliance manufactures a wide range of products and systems designed for the spa and hot tub industry. Some of their key product categories include:

1. Control Systems: Gecko offers a variety of control systems that allow hot tub owners to manage and customize their spa experience. These systems can control functions such as temperature, filtration, jet intensity, lighting, and more.

2. Key Pads and Keypads Overlays: These user interfaces provide an intuitive way for users to interact with their hot tubs. Keypads and overlays are often customizable to match the specific features of different hot tub models.

3. Pumps and Motors: Gecko produces high-quality pumps and motors that help circulate water and power various functions within hot tubs and spas. These components are essential for maintaining water quality and creating a relaxing spa experience.

4. Heating Systems: Gecko's heating systems are designed to efficiently warm the water in hot tubs and maintain the desired temperature. They offer a range of heating options to suit different hot tub sizes and requirements.

5. Ozonators: Ozonators are used for water sanitation in hot tubs. Gecko's ozonators help keep the water clean and safe by reducing the need for traditional chemical treatments like chlorine.

6. Chlorinators and Salt Systems: These products assist in maintaining water quality by adding chlorine or salt as needed. They offer alternatives to traditional water treatment methods.

7. In.Touch Connectivity: Gecko's In.Touch system allows hot tub owners to control and monitor their spa remotely through a mobile app. This feature enhances convenience and ease of use.

Gecko Alliance is known for its commitment to innovation and product quality. Their systems are used by many hot tub manufacturers worldwide, and their technology helps improve the overall spa experience while promoting energy efficiency and sustainability.