💡 Balboa X-B Expander Board (59231) – Blower Control for BP200UX Systems

Add blower functionality to your BP200UX spa system with this genuine Balboa expander board.

🔌 Product Overview

The Balboa X-B Expander Board (Part Number 59231) is a genuine Balboa Water Group accessory board that adds blower control capability to BP200UX spa control systems. This compact plug-in expansion card enables you to upgrade your existing BP200UX system to include an air blower for enhanced hydrotherapy, transforming your hot tub experience with invigorating air bubbles.

Designed specifically for the BP200UX platform, this expander board provides a dedicated 240V output for a 1-speed blower with integrated relay control and 10A fuse protection. The board comes pre-configured for easy installation into the BP200UX control box, which includes pre-installed mounting hardware for expander boards.

This is an essential component when configuring your BP200UX system in Setup 3 (with circulation pump) or Setup 4 (without circulation pump) to enable blower functionality.

⭐ Key Features

✅ Genuine Balboa Part (PN 59231) – Manufactured by Balboa Water Group for guaranteed compatibility

✅ 240V Blower Output – Controls 1-speed blowers up to 4A maximum

✅ 10A Fuse Protection – Built-in F5 fuse (10A 250V) protects the blower circuit

✅ Integrated Relay Control – On-board relay (K1) for reliable blower switching

✅ 15-Minute Auto Timer – Blower automatically shuts off after 15 minutes of operation

✅ Plug-In Installation – Connects directly to BP200UX main board via J5 connector

✅ Pre-Installed Mounting – BP200UX systems include pre-installed mounting hardware for expander boards

✅ Compact Design – 85mm × 41mm footprint fits easily within the control box

🔧 Technical Specifications

Specification	Value
Balboa Part Number	59231
Board Designation	X-B (Blower Expander)
Manufacturer	Balboa Water Group
Board Type	Expander PCB
Compatible System	BP200UX only
Output Voltage	240VAC
Blower Output	1-Speed, 4A maximum
Blower Timer	15 minutes
On-Board Fuse	F5: 10A 250V
On-Board Relay	K1
Main Board Connection	J5
Power Connection	W12 to Area 3
Control Connection	J3 to J55
Board Dimensions	85mm (L) × 41mm (H)

🔗 Compatibility

Compatible Systems

System	Compatibility	Notes
BP200UX	✅ Compatible	All BP200UX variants (2kW, 3kW, Remote)
BP200G1	❌ Not compatible	Use BP200UX systems only
BP200G2	❌ Not compatible	Use BP200UX systems only
BP200G3	❌ Not compatible	Use BP200UX systems only
BP100UX	❌ Not compatible	Different expander board required
BP2100	❌ Not compatible	Different system architecture

⚠️ Important: This expander board is exclusively designed for BP200UX control systems and will not function with other Balboa systems.

Compatible BP200UX System Part Numbers

Part Number	Description
59340-02	BP200UX 3.0kW 800 Incoloy
59371-01	BP200UX 3.0kW 825 Incoloy
59381-01	BP200UX 3.0kW Titanium
59342-02	BP200UX 2.0kW 800 Incoloy
59445-01	BP200UX 2.0kW 825 Incoloy
59380-01	BP200UX 2.0kW Titanium
59310-01	BP200UX Remote Heater System

Setup Configuration

The X-B expander board enables blower functionality in the following BP200UX setups:

Setup	Circ Pump	Pump 1	Pump 2	Blower	Expander Required
3	Programmable Filtration + Polling	1-Speed	None	1-Speed	X-B (PN 59231)
4	None	2-Speed	None	1-Speed	X-B (PN 59231)

💡 Note: Setups 1 and 2 use the X-P2151 pump expander (PN 59233) instead. Setups 5, 6, and 7 do not require any expander board.

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⚙️ Expander Board Limitations

⚠️ Critical: The BP200UX system can only have ONE expander board installed at a time.

Expander	Part Number	Function	Mutual Exclusivity
X-B	59231	Adds 1-speed Blower	Cannot use with X-P2151
X-P2151	59233	Adds 1-speed Pump 2	Cannot use with X-B

If your spa requires both a second pump AND a blower, the BP200UX system is not suitable. Consider upgrading to a larger BP system such as the BP2100.

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🛠️ Installation Requirements

⚠️ IMPORTANT: All electrical work must be carried out by a qualified electrician in accordance with BS 7671 (IET Wiring Regulations).

Pre-Installation Checklist

• [ ] Confirm your system is BP200UX (check main board part number)
• [ ] Verify expander mounting hardware is present in control box
• [ ] Disconnect all power at the main breaker
• [ ] Allow capacitors to discharge (wait minimum 5 minutes)

Wiring Connections

From	To	Description
W12	Area 3	Power supply connection
J3	J55	Control signal connection
J6	Blower	Blower motor connection
Board	J5	Main board connection

Wiring Options (2-out-of-3 Service)

The blower can be wired to either the heater service (BRN 1) or the Pump 1 service (BRN 2):

Option A – Blower on Heater Service (BRN 1):

• J3 wire from expander board must be wired to Area 2
• DIP Switch A8 ON makes the blower shut OFF the heater
• Pump 1 can run along with the heater

Option B – Blower on Pump 1 Service (BRN 2):

• J3 wire from expander board must be wired to J55
• DIP Switches A2 and A3 both ON allows heater to always run
• DIP Switch A5 usually needs to be ON (only Pump 1 High OR Blower, not both)

Post-Installation Setup Change

After installing the X-B expander board, you must change the system setup:

1. Enter Test Mode (DIP Switch A1 ON)
2. Navigate to Setup selection
3. Change to Setup 3 (with circ pump) or Setup 4 (without circ pump)
4. Exit Test Mode (DIP Switch A1 OFF)

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⚠️ Safety Warnings

Electrical Safety

⚠️ ALWAYS disconnect power at the main breaker before installing the expander board.

⚠️ Installation must be carried out by a qualified electrician.

⚠️ Ensure all connections are secure before restoring power.

⚠️ Do not exceed the 4A maximum blower rating.

⚠️ The 10A fuse (F5) on the expander board must be the correct rating – do not substitute.

System Limitations

⚠️ Only ONE expander board can be installed in a BP200UX system.

⚠️ This board is NOT compatible with any system other than BP200UX.

⚠️ When DIP Switch A5 is ON, the blower automatically turns OFF when Pump 1 goes to high speed.

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🔩 Fuse Information

Fuse	Rating	Part Number	Location
F5	10A 250V	30122	On X-B expander board

⚠️ Always replace with the correct Balboa fuse (PN 30122). Using incorrect fuse ratings may cause damage or fire hazard.

❓ Frequently Asked Questions

Q: Is this board compatible with my BP200G1/G2/G3 system? A: No. The X-B expander board (59231) is exclusively designed for BP200UX systems. BP200UX is a combination of the BP200G1, BP200G2, and BP200G3 systems into one model with optional user-installed expander boards.

Q: Can I install both a pump expander and blower expander? A: No. The BP200UX system only supports one expander board at a time. You must choose between the X-B (blower) or X-P2151 (pump 2).

Q: What setup should I use after installing this board? A: Use Setup 3 if you have a circulation pump, or Setup 4 if you do not have a circulation pump.

Q: What size blower can this board control? A: The X-B expander supports 1-speed blowers up to 4A maximum at 240V.

Q: Do I need to change any DIP switches? A: Yes, typically. If wiring the blower to the Pump 1 service, set DIP Switches A2 and A3 ON, and usually A5 ON. Refer to the BP200UX Tech Sheet for your specific configuration.

Q: Is the mounting hardware included? A: The BP200UX control box comes with pre-installed mounting hardware for expander boards. This product is the expander board only.

Q: What warranty is included? A: Contact Parts4Tubs directly for current warranty terms and conditions.

🏆 Why Choose the Balboa X-B Expander Board (59231)

✅ Genuine Balboa Part – Manufactured by Balboa Water Group for guaranteed quality and compatibility

✅ Specifically Designed – Purpose-built for BP200UX systems, not a generic aftermarket part

✅ Integrated Protection – Built-in 10A fuse protects your blower circuit

✅ Auto Timer – 15-minute automatic shutoff for safety and energy savings

✅ Easy Installation – Plug-in design with pre-installed mounting hardware in BP200UX systems

✅ Documented Support – Full technical documentation available from Balboa Water Group

🤝 Why Buy from Parts4Tubs

✅ UK-Based Company – Local support from spa industry experts

✅ Fast UK Delivery – Get your spa parts quickly

✅ Expert Technical Advice – We understand Balboa systems

✅ Competitive Pricing – Quality genuine parts at fair prices

✅ Genuine Balboa Parts – Authorised components, not inferior copies

✅ Full Warranty Support – Peace of mind with your purchase

✨ Summary

The Balboa X-B Expander Board (PN 59231) is the genuine Balboa accessory for adding blower capability to BP200UX spa control systems. Providing a dedicated 240V output for 1-speed blowers up to 4A with integrated 10A fuse protection and 15-minute auto timer, this plug-in expansion card enables Setup 3 or Setup 4 configurations. Exclusively compatible with BP200UX systems, the X-B expander is the professional choice for upgrading your spa with air blower functionality.

Order now and enhance your BP200UX spa with invigorating air bubbles.

Finding and identifying a replacement Hot Tub Circuit Board (PCB)

If you are looking to replace a failed PCB on your Hot Tub’s spa pack, then quite often identifying the part that you need can be the hardest thing.

Firstly, you are looking for a model number on the actual circuit board itself. Having the model or serial of your hot tub is not going to help at this point, you need to find the number on the PCB itself.

Now, with certain brands of PCB, the number of the replacement PCB that you need is not going to match identically the one you are replacing. Why is that I hear you ask?

Well, normally, it is an updated version. This means that it might have updated firmware on the PCB or be a later revision. Normally, this means that the part number would be slightly different. This is usually indicated with a “12345678 -x” at the end of that part number where x indicated a firmware revision.

In some cases, there will be some following letters on the part number of the circuit board, “12345678 -x MAS” this can indicate that the PCB was used for an OEM meaning it was produced for a certain hot tub manufacturer and the letters identify the manufacturer.

This means if you source an original PCB, it will not have the letters, but will in most cases work just fine.

It can be confusing I know!

What if you can’t find a model number?

If you can’t find a model number on the PCB itself, then you need to look for a model number on the spa pack. Normally, there is a sticker on the outside of the spa pack that tells you the current ratings and input voltages etc and this will have a model number.

In general, most spa packs in the USA are manufactured by Balboa, Hydro-Quip, ACC or Gecko. I know I am generalising here, but if you have a spa pack that has the brand of your hot tub on, it will be an OEM so the key is identifying who made the original box.

From there, you can normally find an original PCB that you will be able to switch out.

For example, the Balboa VS (value series) is a very popular spa pack that has been used by multiple hot tub manufacturers under their own brand names. Whatever they have called it, strip it back and it is still a Balboa VS.

Visual Inspection

One of the most important things you can do when you are looking for a replacement is to visually inspect the PCB that you have versus the picture online of the replacement you are considering. They need to look the same even if there are the differences in firmware revisions or OEM part numbers, you should be visually replacing a PCB that looks like the one you have.

Configuring a replacement Hot Tub Circuit Board (PCB)

When you get a new PCB, you are more than likely going to need to configure it. Most PCBs have a number of different modes and setups that the can operate in. For this, you will need to manual or spec sheet to guide you.

For things like DIP switches, most of the time you can copy the settings from your original circuit board.

You may need to move jumpers or even wires to configure voltages – the key here is that you read the schematic and don’t expect the PCB to just work out of the box – it usually doesn’t.

Troubleshooting a Hot Tub Circuit Board (PCB)

Here are some common things you will see when you replace a PCB on a hot tub.

You press the buttons on the topside control and they don’t control the right parts (pumps or blower etc) – this is a mode configuration thing and you will either need to change some DIP switches on the PCB or an internal or low level programming mode on the topside control. Check the manual for how to do this.

To check this, unplug all of your kit – heater, pumps, blower and then turn on the PCB. If it trips with nothing plugged in, usually the voltage is incorrectly set and what is happening is that live current is being sent to the ground – because you have 4 wires into the PCB rather than 3. Current on the ground loop causes the trip. Check the settings to make sure it is configures for 230V.

It might not trip until you physically turn on a pump or a blower.