⚡ Balboa VS100 / RS101 Spa Circuit Board — G1110 (PCB VS100C) — Single-Pump 120V/240V Control System

OEM-quality circuit board engineered for reliable single-pump spa control and performance.

💧 Product Overview

The Balboa VS100 spa circuit board (PCB VS100C, Part No. 24084) is a genuine Balboa Water Group replacement PCB designed for compact single-pump hot tub and portable spa control systems. This board serves as the brain of the VS100 control system, managing a two-speed Pump 1, spa lighting, an ozonator, and a flow-through heater — all from a space-efficient, reliable circuit board platform.

Compatible with the full range of Balboa VL-series topside panels (VL200, VL240, VL260, VL401, and VL403), the VS100 PCB is a direct replacement for spas originally equipped with the Balboa VS100, RS100, or RS101 control systems. It is well suited to compact entry-level hot tubs where simplicity, efficiency, and dependable operation are priorities.

Whether your current board has failed due to water damage, component burnout, or age-related wear, this genuine Balboa PCB restores full spa functionality with a like-for-like replacement. Manufactured by Balboa Water Group — the world’s leading spa control manufacturer — this board is engineered to the same standards as the original equipment.

✨ Key Features

✅ Genuine Balboa Water Group PCB — OEM-quality board, not an aftermarket imitation; ensures full system compatibility and reliability
✅ Two-Speed Pump 1 Control — Supports a standard two-speed main jet pump for both low-speed filtration and high-speed jet operation
✅ Dual Voltage Operation — Supports both 120V/60Hz (1.0kW heater) and 240V/60Hz (4.0kW heater) configurations via wiring setup
✅ Integrated Ozone Output — Factory-configured 120V ozone connector (J29); ozone runs with Pump 1 Low speed
✅ Spa Light Output — Built-in 10V light output for spa illumination control
✅ Multiple Compatible Topside Panels — Works with Balboa VL200, VL240 (MVP240), VL260 (MVP260), VL401, and VL403 topsides
✅ DIP-Switch Configurable — 10-position switchbank (A1–A10) allows field adjustment of pump timeouts, display mode, panel layout, and amp mode
✅ Persistent Memory — Stores filter settings, set temperature, and heat mode without a battery; easy reset via J43 jumper
✅ Priming Mode at Power-Up — Automatic priming sequence protects pump on initial startup
✅ Class A GFCI Compatible — Designed to operate on Class A GFCI-protected service per NEC Article 680
✅ Made in the USA — Balboa Water Group, manufactured in the United States
✅ Compact Board Footprint — Space-efficient PCB suitable for tight spa equipment enclosures

⚙️ Technical Specifications

Specification	Value
Manufacturer Part Number	G1110 (current) / 24084 Rev B (PCB VS100C) / 56297-02 (legacy)
System Part Number	56298-02
System Model	MP7-VS100-GCAK
Software Version	41
Board Type	Main Spa Control PCB
Input Voltage	240V/60Hz (standard hardwired) or 120V/60Hz (GFCI cord configuration)
Service Required (240V config)	30A, Class A GFCI-protected, 4-wire (Hot, Hot, Neutral, Ground)
Max Breaker Rating (240V config)	40A
Heater Output (240V supply)	4.0kW @ 240VAC
Heater Output (120V supply)	1.0kW @ 120VAC
Pump 1 Output	2-Speed, 120V
Pump 2	Not available on this board
Blower Output	Not available on this board
Ozone Output	Yes — 120V, factory configured, J29 connector
Light Output	10V
DIP Switches	10 positions (Switchbank A, A1–A10)
Fuse F1	20A, 250V
Fuse F2	0.25A (T), 250V
Fuse F5	3A, 250V
Persistent Memory Reset	J43 jumper
Wire Type	Copper conductors only
Minimum Wire Gauge	#6 AWG, 90°C-rated minimum
Terminal Block Torque (TB1)	27–30 in. lbs. (31.1–34.5 kg·cm)
Certifications	See manufacturer documentation
Warranty	Contact Parts4Tubs for current warranty terms

⚠️ Always verify your spa’s electrical configuration before ordering. Voltage and wiring must match board configuration. Do not assume.

ℹ️ US Voltage Note: The VS100 board is designed for US 120V/60Hz or 240V/60Hz residential service. Never connect to 50Hz international power supply.

🔗 Compatibility Guide

Replaces the Following Control Systems and Boards:

OEM / Legacy Part Number	Description
56297-02	Balboa VS100 Circuit Board
56298-03	VS100 System (220V Setup)
54805 / 10-175-4805	VS100 System (220V Setup)
56473	VS100 System
54808	VS100 Kit
54825	VS100 System (No GFCI)
56296-03	VS100 System with GFCI
10-175-4821	VS100 System variant
54660-01 / 56439-03	VEL100SB Board / System
56403 / 456404-01	RS101 (Dream Maker Spas)
53946 / 462015	RS100 Circuit Board
53947	RS100 System

⚠️ Always verify your existing board part number before ordering. Compatibility for RS100/RS101 replacements may require 110V pump and ozone circuits — confirm your system configuration.

Compatible Topside Panels:

Panel Part Number	Panel Name	Notes
55123	VL200 (Mini Panel)	DIP switch A3 must be ON
55080	VL240 / MVP240	DIP switch A3 must be OFF
55081	VL260 / MVP260	DIP switch A3 must be OFF
54665	VL401 (Lite Digital / LCD Lite Duplex)	DIP switch A3 must be OFF
54664	VL403 (LED Lite Duplex)	DIP switch A3 must be OFF

Compatible Sensors:

Part Number	Description
25283 / 25-175-5283	Balboa M7 Temperature / Hi-Limit Sensor
26-150-0202	Balboa M7 Sensor

🎛️ Board Functions & Controls

Pump Control:

Output	Function	Configuration
Pump 1	Two-speed main jet pump	120V, high and low speed
Pump 2	Not available	No second pump on VS100
Blower	Not available	No blower on VS100

Heater Control:

Feature	Specification
Heater Type	Flow-through electric element (M7 / remote heater)
Max Output (240V supply)	4.0kW @ 240VAC
Max Output (120V supply)	1.0kW @ 120VAC
Hi-Limit Protection	Yes — via Sensor A (hi-limit) and Sensor B (temperature) inputs

Additional Controls:

Function	Capability
Ozone	120V output, factory configured, runs with Pump 1 Low speed
Spa Light	10V output
Persistent Memory	Stores set temp, filter settings, heat mode (battery-free)
Time of Day	Not supported on VS100 (Serial Deluxe panels only, not compatible)

DIP Switch Summary (Switchbank A):

Switch	Function
A1	Test Mode (normally OFF)
A2	Panel button layout (ON = P1/Lt/Temp Down/Temp Up; OFF = Unused/P1/Temp/Lt)
A3	Panel type (ON = Mini Panel VL200; OFF = Lite Duplex/Digital Duplex)
A4	N/A — must remain OFF
A5	Pump 1 high-speed timeout (see table)
A6	Hz selection (ON = 50Hz; OFF = 60Hz)
A7	Mode changes (ON = Standard only; OFF = Std/Ecn/Sleep allowed)
A8	Temperature display (ON = Celsius; OFF = Fahrenheit)
A9	Pump 1 low-speed timeout (see table)
A10	Amp mode (ON = Low amp / no heat with P1 Hi; OFF = High amp / heat with P1 Hi)

Pump 1 Timeout Table:

A5	A9	Low-Speed Timeout	High-Speed Timeout
OFF	OFF	2 hours	15 minutes
ON	OFF	2 hours	30 minutes
OFF	ON	15 minutes	15 minutes
ON	ON	30 minutes	30 minutes

🔧 Installation Requirements

⚠️ IMPORTANT: Installation must be performed by a licensed electrician in compliance with NEC (National Electrical Code) and all applicable local codes.

Pre-Installation Checklist:

• [ ] Verify part number matches your existing board exactly
• [ ] Disconnect all power at the GFCI breaker or disconnect box
• [ ] Photograph all wiring connections before removal
• [ ] Allow capacitors to discharge — wait at least 5 minutes after power-off
• [ ] Confirm your spa’s voltage configuration (120V or 240V) before wiring

Electrical Requirements (240V Configuration):

Requirement	Specification
Supply Voltage	240V / 60Hz
Service	30A, 4-wire (Hot, Hot, Neutral, Ground)
Circuit Breaker	40A maximum
GFCI Protection	Class A GFCI required (per NEC Article 680)
Ground	Equipment grounding and bonding required (NEC Article 680)
Dedicated Circuit	Required
Disconnect Box	Required within line of sight of spa, at least 5 ft from inside spa walls (per NEC)
Wire Type	Copper conductors ONLY
Wire Rating	#6 AWG minimum, 90°C-rated or higher
TB1 Torque	27–30 in. lbs.

Key Board Connectors:

Connector	Function
TB1	Main power terminal block (line, neutral, ground)
J1	Topside control panel connection
J29	Ozone generator output (120V factory configured)
J23	Pump 1 connection
J9	Heater connection
J43	Persistent Memory reset jumper
J6	Test point
J7 / J8	Hi-speed / Low-speed pump control
Sensor A / Sensor B	Hi-limit and temperature sensor inputs

💡 Tip: Any time you change a DIP switch (other than A1), you must reset Persistent Memory via J43 for the new settings to take effect. See the Persistent Memory Reset procedure below.

Persistent Memory Reset Procedure:

1. Power down the spa (disconnect power source)
2. Place a jumper across J43, covering both pins
3. Reconnect power and wait until the display shows the ready indicator
4. Power down again
5. Remove jumper from J43 (or move to cover 1 pin only)
6. Power up again — new DIP settings are now active

---

⚠️ Safety Warnings

Electrical Safety:

• ⚠️ ALWAYS disconnect power at the breaker before performing any work on the board
• ⚠️ Licensed electrician installation is required — high-voltage shock hazard
• ⚠️ Verify supply voltage matches board configuration (120V or 240V) before connecting
• ⚠️ Class A GFCI protection is required by NEC Article 680 for all spa/hot tub installations
• ⚠️ Equipment grounding AND bonding are mandatory per NEC Article 680
• ⚠️ Use copper conductors only — minimum #6 AWG, 90°C-rated
• ⚠️ Never exceed TB1 torque specification (27–30 in. lbs.) — over-tightening damages terminal block
• ⚠️ Never operate spa with electrical enclosure covers removed

DIP Switch Safety:

• ⚠️ Setting DIP switches incorrectly may cause abnormal system behavior or component damage
• ⚠️ Always reset Persistent Memory (J43) after any DIP switch change (except A1)
• ⚠️ Main power must be OFF before adjusting any DIP switch

Water & Component Safety:

• ⚠️ Ensure no water ingress into control enclosure before installation
• ⚠️ Inspect all seals and gaskets during board replacement
• ⚠️ Never touch electrical components with wet hands

Post-Installation:

• ⚠️ Test all safety features before allowing spa use
• ⚠️ Verify hi-limit sensor function on first startup
• ⚠️ Monitor for error codes on initial power-up

---

🔍 Error Codes & Diagnostics

Power-Up Display Sequence:

The VS100 board displays a specific startup sequence at power-on:

Display Stage	Meaning
Three-number SSID sequence	System Software ID — third number is Software Version (should match your system)
“GC” or “CG” indicator	Heater power range: GC = 3–6kW (240V); CG = 1–3kW (120V)
Priming mode indicator	System is in priming mode — normal at startup

💡 What to check if display is unexpected: Verify DIP switch settings match your wiring configuration. If Software Version shown does not match expected, contact Parts4Tubs technical support.

⚠️ For a complete list of Balboa VS100 error codes and diagnostic procedures, refer to the official tech sheet (see Downloads section) or contact Parts4Tubs.

🎯 Ideal Applications

Application	Suitability	Notes
♨️ Compact / entry-level portable hot tubs	✅ Primary use	Single-pump systems with ozone and light
♨️ Dream Maker / DreamMaker Spas	✅ RS101 / RS100 replacement	Verify 110V pump and ozone circuit requirement
♨️ Premium Leisure Ultra Spa	✅ Compatible	Confirmed replacement
♨️ Any VS100 / GS100-based spa system	✅ Direct PCB replacement	Confirm existing part number

This board is designed for:

• Replacing a failed or damaged original VS100C or RS100/RS101 circuit board
• Restoring full spa functionality after board failure
• Single-pump spa systems requiring a reliable, factory-matched PCB

⚠️ This board does NOT support: a second pump, a blower, or a circulation pump. If your spa requires these outputs, a different Balboa board model is required.

❓ Frequently Asked Questions

Q: How do I confirm this board fits my spa? A: Check the part number on your existing circuit board and compare it against the replacement part numbers listed in the Compatibility Guide above. Key OEM numbers this board replaces include 56297-02, 56473, 56403 (RS101), 53946 (RS100), 54808, and others listed. When in doubt, contact Parts4Tubs with your spa make, model, and existing board part number.

Q: Is this an OEM or aftermarket board? A: This is a genuine Balboa Water Group OEM circuit board (PCB VS100C, Part No. 24084 Rev B) — not an aftermarket substitute.

Q: Does this board support 120V or 240V? A: The VS100C PCB supports both configurations. In the standard 240V hardwired setup, the heater outputs 4.0kW. In a 120V GFCI cord configuration, the heater outputs 1.0kW. The pump and ozone outputs operate at 120V in both setups. Verify your spa’s existing electrical configuration before ordering.

Q: Do I need a licensed electrician to install this? A: Yes. NEC Article 680 and most local codes require a licensed electrician for all hot tub electrical work. A permit may also be required in your jurisdiction.

Q: My existing panel is a VL401 — will it work? A: Yes. The VL401 (PN 54665) is fully compatible with the VS100C board. All five Balboa VL-series panels listed in the Compatibility section are supported.

Q: What happens if I change a DIP switch? A: Any DIP switch change other than A1 (Test Mode) requires a Persistent Memory reset via the J43 jumper. Failure to do so may cause the spa to function improperly. See the installation section for the full reset procedure.

Q: Can this board control a second pump or blower? A: No. The VS100 platform does not support a second pump or blower. If your spa requires these outputs, contact Parts4Tubs for an appropriate board recommendation.

Q: What warranty is included? A: Contact Parts4Tubs for current warranty terms and coverage details.

Q: What if I see error codes after installation? A: Review the power-up sequence information above, verify DIP switch settings match your wiring configuration, and ensure Persistent Memory has been reset after any DIP changes. For further assistance, contact Parts4Tubs technical support.

📥 Downloads & Resources

📄 Balboa VS100 Tech Sheet (Official PDF) — Wiring diagrams, DIP switch settings, connector layout, and full configuration guide

🏆 Why Choose the Balboa VS100 PCB

✅ Genuine OEM Balboa part — same board as original equipment, no compatibility guesswork
✅ Supports both 120V and 240V configurations — one board covers common residential wiring setups
✅ Broad topside panel compatibility — works with all five Balboa VL-series control panels
✅ Replaces multiple legacy system part numbers — covers RS100, RS101, and many VS100 system variants
✅ Field-configurable via DIP switches — 10-position switchbank allows on-site customization without special tools
✅ Made in the USA by Balboa Water Group — the world’s leading spa control manufacturer
✅ Technical support available — Parts4Tubs specialists can help verify compatibility and assist with setup

🤝 Why Buy from Parts4Tubs

✅ US-based company with local support
✅ Fast US shipping
✅ Expert technical advice from spa specialists
✅ Competitive pricing
✅ Full warranty support
✅ Easy returns within 30 days
✅ Compatible parts and accessories available
✅ Help with identifying the correct replacement board

🔌 Summary

The Balboa VS100 PCB (VS100C, Part No. 24084) is a genuine OEM circuit board for single-pump spa control systems, compatible with 120V and 240V service. It controls a two-speed Pump 1, flow-through heater, 120V ozone output, and spa lighting, and works with all Balboa VL-series topsides. This board is a direct replacement for RS100, RS101, and VS100 system variants. For spas equipped with one pump, no blower, and standard Balboa topside controls, this is the correct and reliable PCB replacement. Order with confidence — and get your spa running again.