🔘 Balboa AX10A3 Auxiliary Topside Control (1-Button, Without Overlay) — Compatible with Balboa BP Series Spa Packs

Genuine Balboa Water Group single-button auxiliary panel — precision control for effortless hot tub management.

📋 Product Overview

The Balboa Water Group AX10A3 is a single-button auxiliary spaside topside designed to add a remote control point to your hot tub — letting you operate Jets 3, the air blower, or the MicroSilk® system from a second location on the spa shell, without having to reach the main topside panel. It works as a companion to a primary Balboa topside (TP400, TP600, TP800, or TP900) on Balboa BP Series spa pack systems, connected through a 6-pin Molex Y-splitter.

This listing is for the panel without overlay — ideal for spa technicians, OEM hot tub builders, and homeowners who plan to transfer their existing button overlay or order a custom overlay sticker (Jets, Blower, or MicroSilk) separately.

The button function is determined by the BP7 system’s setup configuration: it controls Jets 3 in BP7 Setups 9-11, 17, 18, and 30-32, MicroSilk® in Setups 22-29, and the Blower in all other Setups. It will not operate any other appliance — the auxiliary button is hardwired to one specific function based on the spa pack’s program. This is a genuine Balboa Water Group OEM part with the standard 6-pin Molex Aux connector used across the entire AX10 auxiliary range.

⭐ Key Features

• ✅ Genuine Balboa Water Group OEM — Authentic factory part, not aftermarket
• ✅ Single-Button Auxiliary Control — Adds a dedicated remote button to your spa
• ✅ Setup-Specific Function — Jets 3, MicroSilk®, or Blower (determined by BP7 setup)
• ✅ Compact Round Panel — 2-1/8″ diameter, fits a small 1-1/4″ cutout
• ✅ Compatible with Balboa BP & GL Series — Pairs with TP400, TP600, TP800, TP900 primary topsides
• ✅ 6-Pin Molex Connector — Standard Balboa AX10 auxiliary connection
• ✅ 7-Foot Cable — Standard length; longer versions available for distant mounting
• ✅ Y-Splitter Compatible — Connects through a 6-pin Y-splitter so the primary topside still functions
• ✅ Without Overlay — Order the function-specific overlay separately (Jets, Blower, MicroSilk)
• ✅ Direct Replacement — Replaces Balboa OEM 52805 (without overlay) and 55533 (with Jets 3 overlay)
• ✅ Choice of Function Overlays — Jet 1, Jet 2, Jet 3, Light, Blower overlays available
• ✅ 1-Year Manufacturer Warranty — Backed by Balboa Water Group

⚙️ Technical Specifications

Specification	Value
Manufacturer	Balboa Water Group
Model	AX10A3
Manufacturer Part Number	G8913 (without overlay)
Topside Type	Electronic (Auxiliary)
Part Type	Topside Only (No Overlay Included)
Number of Buttons	1
Default Function	Jets 3 / MicroSilk® / Blower (varies by BP7 setup)
Cable Length	7 ft
Connector Type	6-Pin Molex
Panel Shape	Round
Panel Diameter	2-1/8″
Cutout (Hole) Size	1-1/4″
Compatible Spa Pack Series	Balboa BP Series (also compatible with select Balboa GL Series)
Voltage Compatibility	Works with both 120V and 240V BP series spa packs (low-voltage signal panel)
Color	Black
Warranty	1-Year Limited (Balboa Water Group)

📌 The single button’s function is set by the BP7 spa pack’s programmed setup, not by the panel itself. The same physical AX10A3 can act as Jets 3, MicroSilk®, or Blower depending on the system configuration.

🔘 Button Function — Setup-Driven

The AX10A3’s button does different things on different BP7 setups. Match the function to your spa pack’s setup number:

BP7 Setup Number	Button Controls
Setups 9, 10, 11	Jets 3 (Pump 3)
Setups 17, 18	Jets 3 (Pump 3)
Setups 30, 31, 32	Jets 3 (Pump 3)
Setups 22, 23, 24, 25, 26, 27, 28, 29	MicroSilk®
All other setups	Blower (Air Blower)

⚠️ Important: The function is hardcoded by the BP7 setup — installing the AX10A3 will not magically add a Jet 3 pump if your spa doesn’t already have one. It only provides remote control of an appliance that’s already wired into the spa pack.

🔄 Compatibility Guide

This Auxiliary Topside is Compatible With:

Spa Pack Family	Confirmed
Balboa BP Series (BP7, BP100, BP501, BP601, BP2000, BP2100, BP8)	✅
Balboa GL Series (select models with auxiliary port)	✅

Pairs With These Primary Topsides:

Primary Topside	Series
TP400 (T or W)	Balboa TP
TP500 / TP500S	Balboa TP
TP600	Balboa TP
TP700	Balboa TP
TP800	Balboa TP
TP900	Balboa TP
SpaTouch (1, 2, 3)	Balboa Touchscreen

📌 The AX10A3 is added IN ADDITION to your primary topside, not as a replacement. A 6-pin Y-splitter is required to connect both panels to the spa pack’s auxiliary port.

Replaces These Older Part Numbers:

• ✅ Balboa G8913 (current Balboa part number for AX10A3 without overlay)
• ✅ Balboa 52805 (without overlay — direct OEM equivalent)
• ✅ Balboa 55533 (with Jets 3 overlay — when paired with overlay 11907 or 12106)
• ✅ Balboa 34-52805, 34-55533 (kit references)
• ✅ Wellis ACM0670 (cross-reference for spas using the Wellis brand)

NOT Compatible With:

• ❌ Balboa EL series spa packs (use ML-series auxiliary panels instead — those use 8-pin Molex)
• ❌ Balboa VS or GS series spa packs
• ❌ Spa packs without an auxiliary topside port
• ❌ Gecko, HydroQuip (proprietary), ACC, or non-Balboa control systems

How to Verify Compatibility:

📍 Check your spa pack model — confirm the prefix is “BP” (e.g., BP7, BP501, BP2000) 📍 Identify your BP7 setup number — found in the spa pack’s user manual or programming menu 📍 Confirm the function you need (Jets 3, MicroSilk®, or Blower) matches your setup 📍 Verify your existing auxiliary topside cable has a 6-pin Molex connector 📍 Compare your old auxiliary panel to the AX10A3 dimensions (2-1/8″ round, 1-1/4″ cutout) 📍 Contact Parts4Tubs with your spa pack model and setup number if you’re unsure

⚠️ Important: AX10 series panels are NOT interchangeable across functions. AX10A3 is for Jets 3 / MicroSilk® / Blower. AX10A1 is for Jets 1, AX10A2 for Jets 2, AX10A4 for Light. Installing the wrong AX10 variant will result in incorrect button function.🖥️ Display Information

The AX10A3 is a button-only auxiliary panel — it does NOT have an LCD display. All system information (temperature, mode, error codes) is shown on the primary topside (TP400, TP600, TP800, TP900, or SpaTouch) connected through the Y-splitter.

Element	Where to View
Water temperature	Primary topside
Mode indicators	Primary topside
Error codes	Primary topside
Active button (Jets 3 / Blower / MicroSilk® on/off)	Auxiliary panel button itself / Primary topside icons

🔌 Installation Guide

Before Installation:

• ⚠️ Disconnect power at the GFCI breaker before any work
• ⚠️ Confirm your spa pack is a Balboa BP series model with a programmed setup that uses Jets 3, MicroSilk®, or Blower
• ⚠️ Ensure you have a 6-pin Y-splitter (Balboa 6-pin Molex Y-splitter, sold separately)
• ⚠️ Have your function-specific overlay ready (Jets 3, Blower, or MicroSilk® sticker)

Installation Steps:

1. Turn off power at the GFCI / disconnect serving the spa
2. Drill or locate the 1-1/4″ cutout in the spa shell where the auxiliary button will mount
3. Open the spa cabinet and locate the existing auxiliary topside cable on the spa pack (or the primary topside cable if no auxiliary is present yet)
4. Disconnect the existing cable from the spa pack
5. Connect the 6-pin Y-splitter to the spa pack’s auxiliary port — one branch goes to the primary topside, the other to the new AX10A3
6. Apply the function-specific overlay to the AX10A3 panel (Jets 3, Blower, or MicroSilk®)
7. Route the AX10A3 cable through the cabinet and up to the new cutout
8. Plug the AX10A3 6-pin Molex into the Y-splitter
9. Mount the AX10A3 in the 1-1/4″ cutout
10. Restore power at the breaker
11. Press the button to confirm the assigned function (Jets 3, Blower, or MicroSilk®) activates

Mounting:

Requirement	Specification
Panel diameter	2-1/8″
Cutout (hole) size	1-1/4″
Mounting type	Drop-in / surface-mounted with sealant

⚠️ Professional installation by a licensed electrician is recommended if you’re unfamiliar with spa electronics. All work must comply with the National Electrical Code (NEC) and local codes.

⚡ Wiring & Connection

Connector Information:

Specification	Detail
Connector Type	6-Pin Molex (auxiliary topside connector)
Cable Length	7 ft standard
Y-Splitter Required	Yes — 6-pin Molex Y-splitter (sold separately)
Extension Available	Yes — 6-pin Molex extensions available

Connection Location:

Plugs into the auxiliary topside port on Balboa BP series spa packs,
typically through a 6-pin Y-splitter shared with the primary topside.

⚠️ Never force the connector. The 6-pin Molex plug should slide in cleanly. If it doesn’t fit, your spa pack is likely not a BP series — verify before proceeding.

⚠️ Note: The 6-pin auxiliary connector is DIFFERENT from the 4-pin connector used by primary BP-series topsides (TP400, TP600, TP800, TP900, SpaTouch). They are not interchangeable.

🔍 Troubleshooting

Common Issues:

Problem	Possible Cause	Solution
Button does nothing	No power or loose connection	Verify breaker on; reseat the 6-pin Molex plug at the Y-splitter
Button operates wrong appliance	BP7 setup determines function	Check your BP7 setup number — function is fixed by setup
Button activates Blower when expecting Jets 3	BP7 setup doesn’t include Jets 3	Your spa pack’s programmed setup uses Blower for that button
Primary topside stops working when AX10A3 connected	Y-splitter not seated	Check Y-splitter connection; reseat all 6-pin Molex plugs
Button responds intermittently	Worn overlay or moisture intrusion	Inspect overlay for wear or water damage
Different AX10 panel needed	Wrong button assigned (e.g., need Jets 1 instead of Jets 3)	Use AX10A1 for Jets 1, AX10A2 for Jets 2, AX10A4 for Light

How to Identify Your BP7 Setup:

The setup number is programmed into your spa pack at the factory.
You can check it through the primary topside's diagnostic menu
(consult your TP400/TP600/TP800/TP900 user guide for the exact menu path).

🔧 Maintenance & Care

Routine Care:

Task	Frequency
Wipe button face with damp cloth	Weekly
Check button response	Monthly
Inspect cable connection at Y-splitter	Annually
Inspect overlay for wear and water seal	Annually

DO NOT:

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

Overlay Replacement:

Function-specific overlays are sold separately. Match the overlay to the function your BP7 setup assigns to the AX10A3:

Overlay Function	Balboa Part Number
Jets 1	40105
Jets 2	40106
Jets 3	11907 (also seen as 12106)
Blower	40107
Light	40108

📌 If you’re unsure which overlay to order, contact Parts4Tubs with your BP7 setup number and we’ll match the correct function.

🎯 Ideal Applications

Application	Suitability
♨️ Adding a remote Jets 3 button at the far end of the spa	✅ Ideal
♨️ Adding a remote Blower button	✅ Ideal
♨️ Spas equipped with MicroSilk® systems (BP7 setups 22-29)	✅ Ideal
♨️ Replacement for failed AX10A3 auxiliary panel	✅ Direct fit
♨️ OEM use by spa builders	✅ Pair with custom overlay
♨️ Repair shop service inventory	✅ Use existing overlay from customer’s old panel
♨️ Spas without a BP series spa pack	❌ Not compatible
♨️ Replacing a primary topside	❌ Use TP400/600/800/900 instead

Common Replacement Scenarios:

• Original auxiliary button has failed
• One button no longer responds (water damage or wear)
• Builder/installer adding a remote control point during spa assembly
• OEM upgrade with a fresh overlay for different branding

🤔 Frequently Asked Questions

Q: Is the overlay included? A: No — this listing is for the auxiliary panel only, without the overlay sticker. You can either transfer the overlay from your existing panel or purchase a function-specific overlay separately. The standard AX10A3 Jets 3 overlay is Balboa part 11907 (also seen as 12106); the Blower overlay is 40107.

Q: What does this button do? A: It depends on your BP7 setup. The AX10A3 button controls Jets 3 in BP7 Setups 9-11, 17, 18, and 30-32; MicroSilk® in Setups 22-29; and the Blower in all other Setups. It will not control any other appliance.

Q: Can I change what the button does? A: Not from the button itself — the function is determined by your spa pack’s programmed setup, set at the factory. Changing it requires reprogramming the BP7 setup, which is typically done by a qualified spa technician.

Q: How is this different from the AX10A1, AX10A2, and AX10A4? A: Each AX10 model is hardcoded to a specific function: AX10A1 = Jets 1, AX10A2 = Jets 2, AX10A3 = Jets 3 / MicroSilk® / Blower (this product), AX10A4 = Light. They look identical but are not interchangeable — installing the wrong one will operate the wrong appliance.

Q: Do I need a primary topside to use this? A: Yes. The AX10A3 is an auxiliary panel — it adds a remote button but does not display temperature, mode, or error codes. You still need a primary topside (TP400, TP600, TP800, TP900, or SpaTouch) for full spa control.

Q: What is the Y-splitter and do I need one? A: A 6-pin Y-splitter (Balboa 6-pin Molex Y-splitter, sold separately) lets both your primary topside and the AX10A3 plug into the same spa pack auxiliary port. You will need one if you don’t already have one in place.

Q: What’s the cable length? A: The cable is 7 feet long with a 6-pin Molex connector. Some kit versions of this panel ship with longer 18-foot cables for distant mounting points — contact Parts4Tubs if you need an extended cable version.

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

Q: My old part says G8913 — is this the same? A: Yes. G8913 is the manufacturer part number for the AX10A3 without overlay. This listing is the direct equivalent.

Q: What’s MicroSilk®? A: MicroSilk® is Balboa’s premium aerated water therapy system that infuses billions of micro-bubbles into the spa water for a skincare and oxygenation effect. On equipped spas (BP7 setups 22-29), the AX10A3 button activates the MicroSilk® system.

Q: Can I install this myself? A: If you’re comfortable safely shutting off power at the GFCI breaker, drilling a 1-1/4″ cutout if needed, and routing low-voltage cable inside the spa cabinet, DIY installation is possible. If you’re not, a licensed electrician or spa technician is recommended.

Q: What warranty is included? A: This part carries a 1-year limited manufacturer warranty from Balboa Water Group. Contact Parts4Tubs for full warranty terms.

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

🏆 Why Choose the Balboa AX10A3 Auxiliary Topside

• ✅ Genuine Balboa OEM — Not a copy or aftermarket lookalike
• ✅ Adds remote control — Place a Jets 3, Blower, or MicroSilk® button anywhere on the spa shell
• ✅ Compact 2-1/8″ round panel — Fits a small 1-1/4″ cutout
• ✅ Setup-flexible — Same panel works as Jets 3, MicroSilk®, or Blower depending on BP7 setup
• ✅ Hot-swappable — Drop-in replacement on any compatible BP system
• ✅ Without overlay flexibility — Choose the Jets 3, Blower, or MicroSilk® overlay separately
• ✅ Backed by Balboa warranty — 1-year limited warranty

🛒 Why Buy From Parts4Tubs

• ✅ Fast US shipping to all 50 states
• ✅ Expert advice from spa specialists
• ✅ Compatibility assistance — send us your BP7 setup number
• ✅ Full manufacturer warranty support
• ✅ Easy returns within 30 days
• ✅ 6-pin Molex Y-splitters, function overlays, and extension cables available
• ✅ Genuine OEM Balboa Water Group parts

⭐ Summary

The Balboa AX10A3 auxiliary topside (without overlay) is the genuine OEM single-button add-on panel for any Balboa BP series spa with a Jets 3, MicroSilk®, or Blower function programmed in its BP7 setup. With its compact 2-1/8″ round footprint, 1-1/4″ cutout, 7-foot cable, and 6-pin Molex auxiliary connector, it’s the perfect way to add a remote control point anywhere on the spa shell. Pair it with the appropriate function overlay and a 6-pin Y-splitter for a complete factory-quality auxiliary install. Order today from Parts4Tubs for fast US shipping and expert support.

Who are Balboa Water Group?

Balboa Water Group is the world’s largest manufacturer of control systems and components for the spa and hot tub industry. With over four decades of experience, Balboa has established itself as the industry leader in innovation, reliability, and technological advancement.

The company’s commitment to quality is evident in their state-of-the-art manufacturing facilities and rigorous testing processes. Their control panels feature patented Piezo electronic switch technology and unique potting methods that prevent moisture damage in harsh hot tub environments.

Balboa’s comprehensive range extends beyond control systems to include pumps, heaters, jets, and accessories. All components are engineered for optimal performance, durability, and energy efficiency, enhancing the overall spa ownership experience.

Choosing Balboa products means selecting components that have been designed specifically for the demanding conditions of hot tub operation. Their reputation for reliability and innovation has made them the preferred choice for both hot tub manufacturers and DIY enthusiasts worldwide.

What is a Hot Tub Topside Control?

A Hot Tub Topside Control, also known as a spa control panel or topside controller, is a user interface located on the outer surface of a hot tub or spa. This control panel allows you to interact with and manage various functions of your hot tub, such as adjusting the temperature, activating jets and pumps, setting filtration cycles, controlling lighting, and more. It serves as the command center that puts the power of customization at your fingertips, enabling you to create the perfect spa experience tailored to your preferences.

Typically equipped with a digital display, buttons, and possibly a touchscreen, a topside control panel provides an intuitive and user-friendly way to operate your hot tub. Some advanced models may even offer wireless connectivity, allowing you to control your hot tub remotely through a smartphone app.

As a proud supplier of top-quality spa parts and accessories at Parts4Tubs.com, I'm excited to guide you through the world of Hot Tub Topside Controls. These ingenious devices offer convenience, comfort, and control, ensuring your hot tub relaxation is precisely how you envision it. Let's explore the ins and outs of Hot Tub Topside Controls and how they elevate your spa experience to the next level.

 

 

How does a Topside Control Work?

A Hot Tub Topside Control, often equipped with a digital display and user-friendly buttons, is the primary interface that allows you to interact with and control various functions of your hot tub. Here's how it works:

1. User Interface: The topside control panel is mounted on the exterior of the hot tub, usually within arm's reach when you're seated inside. It features a digital screen that displays relevant information such as water temperature, pump status, and timer settings.
2. Menu Navigation: The control panel presents a menu system that you navigate using the buttons or touchscreen. This menu system provides access to different functions and settings of your hot tub.
3. Temperature Adjustment: One of the key functions of the topside control is temperature regulation. You can adjust the water temperature to your desired level, ensuring a comfortable and relaxing soak.
4. Pump and Jet Control: Through the control panel, you can activate and control the operation of various pumps and jets in your hot tub. This includes turning jets on or off, adjusting their intensity, and controlling the filtration system.
5. Lighting and Auxiliary Features: Many hot tubs come with additional features such as underwater lighting, waterfalls, and music systems. The topside control allows you to manage these features, creating an ambiance that suits your mood.
6. Timer and Programming: Modern topside controls often have programming capabilities, allowing you to set timers for filtration cycles, heating, and other functions. This automation ensures that your hot tub is ready for use when you want it.
7. Error Messages and Diagnostics: In case of any issues or malfunctions, the topside control panel can display error codes or messages. This helps you identify problems and communicate them to technicians for faster and more accurate repairs.
8. User Profiles: Some advanced topside controls offer the option to save user profiles. This is particularly useful if multiple people use the hot tub, as each person can have their preferred settings readily available.

In essence, the topside control serves as the bridge between you and your hot tub's various systems. It allows you to customize your hot tub experience, control its functions, and maintain optimal performance with ease. As you sit back and relax in your hot tub, the topside control ensures that everything is at your fingertips, providing a seamless and enjoyable spa experience. At Parts4Tubs.com, I'm dedicated to providing you with the finest hot tub parts and accessories, including high-quality topside controls, to enhance your hot tub enjoyment.

Can I upgrade a Topside Control?

Yes, you can upgrade a topside control on your hot tub to enjoy enhanced features and improved functionality. Upgrading your topside control can offer several benefits:

1. Advanced Features: Newer topside controls often come with advanced features that may not be available on older models. These features could include improved user interfaces, touchscreens, customizable settings, and compatibility with smart home systems.
2. Ease of Use: Upgraded topside controls may offer a more intuitive and user-friendly interface, making it easier to navigate through menus, adjust settings, and control various functions of your hot tub.
3. Energy Efficiency: Some upgraded controls offer energy-saving modes or programmable timers, allowing you to optimize the operation of your hot tub's components and reduce energy consumption.
4. Compatibility: If you've added new features or components to your hot tub since its original purchase, an upgraded topside control may be necessary to fully integrate and control these additions.
5. Error Detection and Diagnostics: Modern topside controls often have improved diagnostic capabilities, which can help you identify and address issues more efficiently. This can save you time and money on repairs.
6. Remote Access: Certain upgraded topside controls can be connected to mobile apps or home automation systems, allowing you to control your hot tub remotely. This can be especially convenient for preheating your hot tub before you arrive home.
7. Customization: Upgraded controls may offer more customization options, allowing you to tailor your hot tub experience to your preferences, such as personalized user profiles.

Before upgrading your topside control, consider the compatibility with your hot tub model and the specific features you're looking for. Consult your hot tub manufacturer's guidelines or get in touch to ensure a smooth and successful upgrade. At Parts4Tubs.com, I offer a range of topside controls and hot tub parts to help you enhance your hot tub experience. I’m ready to assist you in finding the right topside control that suits your needs and preferences.

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.