♨️ Balboa AX40 Auxiliary Control Panel – Complete Four-Button Control for Premium Spas

Full-featured auxiliary panel with four-button control of Jets 1, Jets 2, Blower and Light from a secondary location

📋 Product Overview

The Balboa AX40 Auxiliary Control Panel (TS-AX400) is the current production model and the most comprehensive auxiliary panel in the AX series. Featuring four buttons, it provides complete remote control of Jets 1, Jets 2, Blower, and Light from a secondary location away from the main topside controls. This panel offers virtually full spa control without needing to reach the main control panel.

Featuring the largest design in the AX series with 193 mm length, the AX40 fits into a rectangular cutout measuring 135 mm × 33 mm – different from the circular cutouts used by AX10 and AX20 panels. The panel comes with a generous 5-metre cable length for flexible installation positioning. Operating at 12V, it connects via a 6-pin connector (2 rows of 3 pins) to the spa pack’s auxiliary port.

This model (TS-AX400) uses the current Balboa reference G8940 and replaces previous AX40 topsides including part numbers 52678, 52681, and 52799. Compatible with all GL Series control systems including GL2000 and GL8000, as well as BP systems. Please note that the overlay is not included with this model and must be purchased separately.

⭐ Key Features

• ✅ Current Production Model – Balboa reference G8940
• ✅ Four-Button Design – Most comprehensive auxiliary control
• ✅ Complete Function Control – Jets 1, Jets 2, Blower, and Light
• ✅ Two Pump Control – Operate both jet pumps independently
• ✅ Blower Control – Air massage activation
• ✅ Light Control – Spa lighting and ambience
• ✅ 5-Metre Cable – Long reach for flexible positioning
• ✅ Largest AX Panel – 193 mm length
• ✅ 12V Operation – Safe low voltage design
• ✅ 6-Pin Connection – 2 rows of 3 pins connector
• ✅ Wide Compatibility – All GL Series and BP systems
• ✅ Replaces Multiple Models – Direct replacement for 52678, 52681, 52799

⚠️ Important: Overlay NOT included – must be purchased separately.

🔧 Technical Specifications

Specification	Value
Manufacturer	Balboa
Model	AX40
Model Series	AX
Product Type	Auxiliary Panel
SKU	TS-AX400
Balboa Reference	G8940
Replaces Part Numbers	52678, 52681, 52799
Number of Buttons	4
Button Functions	Jets 1, Jets 2, Blower, Light
Maximum Pumps Controlled	2
Blower / Aux	1
Cable Length	5 m
Panel Length/Diameter	193 mm
Cutout Size	135 mm × 33 mm (Rectangular)
Operating Voltage	12V
Connection Type	6 Small Plastic Pins (2 Rows of 3)
Overlay Included	❌ No – Sold Separately
Status	✅ ACTIVE

🔄 Replacement Information

This Model Replaces:

Old Part Number	Old SKU	Status
52678	–	⚠️ Discontinued
52681	–	⚠️ Discontinued
52799	–	⚠️ Discontinued
AX40 (with overlay)	TS-AX401	⚠️ Discontinued

Current Model:

New Balboa Ref	New SKU	Status
G8940	TS-AX400	✅ ACTIVE

If you have an existing AX40 with part number 52678, 52681, 52799, or TS-AX401, the TS-AX400 is the correct replacement. Remember to purchase an overlay separately if required.

🔌 Compatibility Guide

This Auxiliary Panel is Compatible With:

Spa Pack Series	Models	Confirmed
GL Series	All GL Systems	✅
GL2000	All variants	✅
GL8000	All variants	✅
BP Series	BP systems	✅

Connection Requirements:

• Spa pack must have available 6-pin auxiliary port
• Spa must have Pump 1, Pump 2, Blower, and Light outputs configured
• 12V auxiliary power supply from spa pack

📍 How to Verify Compatibility:

• Check your spa pack has a 6-pin auxiliary connector port
• Confirm your spa has two jet pumps, blower, and light installed
• Verify all outputs are configured on your system

⚠️ Important: This panel controls all four functions. If your spa doesn’t have all components (e.g., no blower), that button will have no effect.

🎛️ Button Functions

Four-Button Operation:

Button	Function	Action
JETS 1	Pump 1 Control	Activate/cycle Jet Pump 1
JETS 2	Pump 2 Control	Activate/cycle Jet Pump 2
BLOWER	Air Blower Control	Activate air massage system
LIGHT	Lighting Control	Activate/cycle spa lighting

Operating Notes:

• Press Jets 1 to activate primary jet pump
• Press Jets 2 to activate secondary jet pump
• Press Blower to activate air massage bubbles
• Press Light to turn on lighting or cycle through colours
• All four functions can operate simultaneously or independently
• Pump speed cycling depends on spa pack configuration
• Light and blower behaviour depends on your installed equipment

🔗 AX Series Full Comparison

Complete AX Auxiliary Panel Range:

Series	SKU	Buttons	Functions	Hole Type	Hole Size
AX10	TS-AX111	1	Jets 1	Circular	32 mm
AX10	TS-AX112	1	Jets 2	Circular	32 mm
AX10	TS-AX113	1	Blower	Circular	32 mm
AX10	TS-AX114	1	Light	Circular	32 mm
AX20	TS-AX201	2	Jets + Light	Circular	89 mm
AX20	TS-AX203	2	Jets 1 + Jets 2	Circular	89 mm
AX40	TS-AX400	4	Jets 1 + Jets 2 + Blower + Light	Rectangular	135 × 33 mm

AX40 is the Premium Choice When:

• You want complete spa control from auxiliary location
• Your spa has two pumps, blower, AND lighting
• You need maximum functionality in one panel
• Premium spa installations with full-featured equipment

💡 Four-Function Combination Benefits

Why Choose the AX40 Complete Control Panel:

Scenario	Benefit
Premium spa installations	Complete control without main panel
Large party spas	Full access to all functions from any position
Therapy sessions	Jets, blower, and lighting all controllable
Evening entertainment	Adjust every spa feature from lounger

Typical Usage Combinations:

• Jets 1 + Jets 2 + Light for powerful hydrotherapy with ambience
• Blower + Light for gentle air massage relaxation
• All four for complete spa experience
• Individual functions as needed

⚙️ Purpose & Application

What is an Auxiliary Panel?

Unlike main topside control panels that provide full spa control (temperature, all pumps, lights, modes), auxiliary panels are secondary controls designed to operate specific functions from remote locations around the spa.

Why Use an AX40 Full-Function Panel?

Scenario	Benefit
Premium large hot tubs	Complete spa control from any seat
Entertainment setups	Full control for hosting guests
Therapy-focused spas	All massage options accessible
Luxury installations	Maximum convenience and functionality

Typical Installation Locations:

• Near lounger seating areas in premium spas
• Opposite end of large spas from main topside
• Secondary control station in commercial installations
• Near therapy seats in wellness spas

🛠️ Installation Guide

Before Installation:

• ⚠️ Disconnect power to spa at the isolator/breaker before any work
• ⚠️ Verify your spa has all four outputs (Jets 1, Jets 2, Blower, Light)
• ⚠️ Locate available 6-pin auxiliary port on PCB
• ⚠️ Plan cable routing (5 m available length)
• ⚠️ Prepare rectangular 135 mm × 33 mm cutout at desired location
• ⚠️ Purchase overlay separately if required

Installation Steps:

1. Turn off power at the isolator/breaker
2. Cut or prepare rectangular 135 mm × 33 mm hole at desired location
3. Route the 5 m cable from installation point to spa pack
4. Connect the 6-pin connector to the spa pack’s auxiliary port
5. Mount the AX40 panel in the rectangular cutout
6. Apply overlay (purchased separately)
7. Secure panel and ensure watertight seal
8. Restore power and test all four buttons

Mounting Information:

Specification	Detail
Panel Length	193 mm
Required Cutout	135 mm × 33 mm (Rectangular)
Cable Length	5 m
Connection	6 small plastic pins (2 rows of 3)
Mounting Type	Push-fit into rectangular hole

⚠️ Important: The AX40 requires a rectangular cutout, NOT a circular hole like the AX10 and AX20 series. Professional installation recommended.

⚡ Wiring & Connection

Connector Information:

Specification	Detail
Connector Type	6 Small Plastic Pins
Pin Configuration	2 Rows of 3 Pins
Cable Length	5 metres
Operating Voltage	12V

Connection Location:

The AX40 connects to the auxiliary panel port on compatible Balboa spa packs. The plug fits onto any port with the 6-pin slot connection on the PCB.

⚠️ Never force the connector. The 6-pin auxiliary connector is different from the 8-pin main topside connector. Ensure you connect to the correct port.

🔍 Troubleshooting

Common Issues:

Problem	Possible Cause	Solution
No buttons responding	No power or loose connection	Check power and reseat 6-pin connector
Some buttons work, others don’t	Component not installed or configured	Check spa has all components installed
Jets 1 or Jets 2 not working	Pump not configured	Check pump settings on spa pack
Blower not activating	Blower not installed or configured	Verify blower installation
Light not working	Bulb/LED faulty	Check light unit
Intermittent operation	Cable damage or poor connection	Inspect cable and connectors
Panel doesn’t fit	Wrong cutout shape/size	Requires rectangular 135 × 33 mm cutout

Important Notes:

• The AX40 controls all four functions – verify your spa has all components
• Buttons for missing components (e.g., no blower installed) will have no effect
• If functions work from main panel but not from AX40, check auxiliary port wiring

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🔩 Maintenance & Care

Routine Care:

Task	Frequency
Wipe with soft damp cloth	Weekly
Check all button responses	Monthly
Inspect cable condition	Annually
Check watertight seal	Annually
Check overlay condition	Annually

DO NOT:

• ❌ Use abrasive cleaners
• ❌ Pull or stress the cable
• ❌ Submerge cable connections
• ❌ Force button operation

Overlay Replacement:

The overlay is not included with this model. Overlays are available separately. If your overlay becomes worn, faded, or buttons become unresponsive, contact Parts4Tubs for replacement options.

🛁 Ideal Applications

Application	Suitability
♨️ Premium large hot tubs (8+ person)	✅ Ideal
♨️ Spas with 2 jet pumps + blower + light	✅ Ideal
♨️ Luxury spa installations	✅ Ideal
♨️ Entertainment/party spas	✅ Ideal
♨️ Wellness/therapy spas	✅ Ideal
🔄 Replacement for 52678, 52681, 52799, TS-AX401	✅ Direct replacement

Common Replacement Scenarios:

• 💔 Non-responsive buttons on old AX40
• 🔌 Damaged cable on existing unit
• 💧 Water ingress damage
• 🔘 Worn panel (old 52678/52681/52799 models)

❓ Frequently Asked Questions

Q: What is the difference between TS-AX400 and TS-AX401?

A: Both are AX40 four-button panels with identical functionality. The TS-AX400 is the current production model that replaces the discontinued TS-AX401. The main difference is that TS-AX400 does NOT include the overlay (must be purchased separately), whereas TS-AX401 included the overlay.

Q: I have an old AX40 (52678, 52681, or 52799) – is this the correct replacement?

A: Yes, the TS-AX400 (Balboa reference G8940) is the current production model that replaces all previous AX40 variants including part numbers 52678, 52681, 52799, and TS-AX401.

Q: Is the overlay included?

A: No, the overlay is NOT included with the TS-AX400 and must be purchased separately. This differs from the older discontinued TS-AX401 which included the overlay.

Q: What is the Balboa reference number?

A: The current Balboa reference for this model is G8940.

Q: What spa packs is this compatible with?

A: The AX40 is compatible with all GL Series control systems including GL2000 and GL8000, as well as BP systems.

Q: My spa doesn’t have a blower – can I still use this?

A: Yes, but the Blower button will have no effect. If you don’t need blower control, consider a smaller AX20 model instead.

Q: What size cutout do I need?

A: The AX40 requires a rectangular 135 mm × 33 mm cutout. This is different from the circular holes needed for AX10 and AX20 panels.

Q: Is the 5-metre cable long enough?

A: For most installations, 5 metres provides adequate reach from the auxiliary port to a remote location on the spa. Measure your specific requirement before ordering.

Q: Can all four functions run simultaneously?

A: Yes, all four functions operate independently. You can run any combination of Jets 1, Jets 2, Blower, and Light at the same time.

🏆 Why Choose the Balboa AX40 (TS-AX400)

• ✅ Current Production Model – Balboa reference G8940
• ✅ Complete Four-Button Control – Jets 1, Jets 2, Blower, and Light
• ✅ Maximum Functionality – Most comprehensive auxiliary panel
• ✅ Genuine Balboa Quality – Manufactured to Balboa’s standards
• ✅ Wide Compatibility – All GL Series and BP systems
• ✅ Direct Replacement – For 52678, 52681, 52799, and TS-AX401
• ✅ 5-Metre Cable – Generous length for flexible installation
• ✅ Premium Choice – For fully-equipped luxury spas
• ✅ 12V Safety – Safe low voltage operation
• ✅ Currently Available – Active product in stock

🇬🇧 Why Buy from Parts4Tubs

• ✅ UK-based company with local support
• ✅ Fast UK delivery
• ✅ Expert advice from spa specialists
• ✅ Auxiliary panel compatibility assistance
• ✅ Overlays available separately
• ✅ Full warranty support
• ✅ Easy returns within 30 days
• ✅ Complete AX series range available

✨ Summary

The Balboa AX40 Auxiliary Control Panel (TS-AX400, Balboa reference G8940) is the current production model and most comprehensive auxiliary panel in the AX series. This four-button panel provides remote control of Jets 1, Jets 2, Blower, and Light from a secondary location. Replaces previous models 52678, 52681, 52799, and discontinued TS-AX401. Featuring a 193 mm length panel that fits a rectangular 135 mm × 33 mm cutout (different from circular AX10/AX20 panels), with 5-metre cable, 12V operation, and 6-pin connector. Compatible with all GL Series systems (GL2000, GL8000) and BP systems. Controls 2 pumps + 1 blower + lighting. Overlay NOT included – purchase separately. Order from Parts4Tubs for fast UK delivery and expert support.