Boiler Spares

Genuine Baxi 248075 Printed Circuit Board (PCB), designed as a replacement control board for compatible Baxi, Main and Potterton boilers. The PCB acts as the boiler's control centre, monitoring and managing key heating functions, sensors, thermostats and safety systems. Suitable for selected Combi 80 Eco, Performa 24 and Combi 24 models.

The Baxi CQI rigid filling loop 720808301 is a genuine Baxi boiler accessory designed for safe and reliable system pressure topping up. Compatible with Baxi 800 Range, Duo-tec, Main Eco and other ErP boilers.

The Baxi 248001 Silver Fan Assembly is a replacement boiler component designed for selected Baxi gas boiler models. The fan plays an essential role in the combustion process by supplying fresh air to the combustion chamber and helping remove combustion gases through the flue.

The boiler's safety controls rely on the fan operating correctly to ensure the correct combustion sequence. A faulty fan can prevent the boiler from operating safely, making the correct replacement component essential when carrying out compatible boiler repairs.

Finished in silver, this replacement fan assembly is suitable for a range of Baxi Combi, System and Performa boilers.

Always check your existing component part number and boiler model before ordering to ensure compatibility.

The Baxi 229418 SIT Nova Gas Valve is a replacement boiler component designed for the Baxi Solo WM boiler. It regulates the supply of gas to the burner, helping ensure the correct amount of gas is delivered during the boiler's operation.

Controlled by the boiler's printed circuit board (PCB), the gas valve receives signals when gas is required and opens to allow gas to flow through to the burner or pilot assembly.

Supplied complete with its connecting wire, this replacement gas valve is intended for compatible Baxi Solo WM boiler installations.

Always check the existing component part number and exact boiler model before ordering to ensure compatibility.

The Baxi 229421 Spare Fan Assembly Kit is a replacement boiler component designed for compatible Baxi Solo 2 boiler models. The fan plays an essential role in the boiler's combustion process by supplying air to the combustion chamber and helping remove combustion gases through the flue.

The boiler's safety controls rely on the fan operating correctly to ensure safe combustion. Replacing a faulty fan assembly with the correct compatible part is therefore important for maintaining reliable boiler operation.

This replacement kit also includes a 75ml tube of silicone adhesive sealant, providing an additional component for the installation.

Suitable for selected Baxi Solo 2 models, including Solo 2 30 PF, 40 PF, 50 PF Guinness Trust, 60 PF, 70 PF and 80 PF.

The Baxi 5114762 Top Silicone Pipe is a replacement boiler component designed for selected Baxi and Potterton heating appliances.

Manufactured from silicone, this pipe forms part of the boiler's internal pipework system and is intended as a replacement component for compatible boiler models. It is suitable for selected Baxi Platinum HE, Duo-tec HE and Megaflo HE System boilers, as well as Potterton Gold Combi HE, Heatmax HE, Promax HE and Promax Plus HE ranges.

An essential replacement part when servicing or repairing compatible boiler systems, the Baxi top silicone pipe helps maintain the correct pipework connections within the appliance.

Always check the existing part number and exact boiler model before ordering to ensure compatibility.

The Baxi/Main/Pott Standard Horizontal Flue inc Elbow (stock code 7222019) is a genuine multi‑fit 60/100 horizontal boiler flue kit with a low‑profile elbow and fixings, ideal for domestic boiler wall installations. Suitable for use with compatible Baxi, Main and Potterton boilers, this robust flue system offers quick push‑fit connections and reliable combustion gas discharge for efficient heating setups.

The Compatible Flow Switch 242459 is an aftermarket replacement designed for selected Baxi, Main and Potterton boiler models. It replaces the obsolete original part number 242459.

The flow switch monitors water movement within the boiler, helping the appliance recognise hot water demand and respond accordingly. A faulty flow switch can affect the boiler's ability to detect water flow, potentially causing problems with hot water operation.

This replacement offers a solution for compatible boilers where the original component is no longer available. Please check your existing part number, boiler model and GC number carefully before ordering.

The Baxi 5114751 Combustion Chamber Burner Gasket is a replacement boiler component designed to provide a secure seal between the burner and combustion chamber. It helps maintain an effective seal within the boiler, supporting safe and efficient combustion by preventing the escape of combustion gases.

Manufactured in black, this replacement gasket is suitable for various Baxi boiler appliances. It is an essential component when carrying out relevant boiler servicing and repairs.

The Potterton 5111137 Diaphragm Service Kit is a replacement boiler component designed to restore correct operation of the diverter valve in compatible combination boilers. The diaphragm works within the diverter valve assembly, helping to switch water flow between the central heating and domestic hot water circuits as required.

Manufactured to match the original component specifications, this service kit provides a reliable replacement solution for boiler maintenance and repairs. Suitable for a range of Baxi and Potterton boiler models.

The Baxi 239218 18 Seal Burner is a replacement sealing component designed for use within compatible Baxi and Main boiler appliances. This O-ring provides a secure seal within the burner assembly, helping to prevent leaks and maintain the correct operation of the boiler.

Manufactured in yellow and white, this replacement seal is suitable for various boiler models, including selected Platinum, Solo HE, Main HE A, Gold and Promax ranges. It is also specifically designed for the Promax SL Heat ErP 30.

The Potterton Automatic Air Vent 5122330 is a replacement boiler component designed to release trapped air from within a compatible central heating system.

Fitted at the top of the boiler, the automatic air vent uses a float-operated mechanism to detect changes in water level. When air accumulates inside the vent, the float drops to open the valve and release the trapped air. As water returns and raises the float, the valve closes to prevent water escaping.

This component helps maintain proper system circulation and supports the efficient operation of the boiler.

The Baxi 248067 Microswitch Assembly is a replacement switching component designed for selected Baxi domestic combi and system boilers.

The microswitch assembly forms part of the boiler's control system, providing the switching function required for specific boiler operations. It is suitable for a range of Baxi Combi, System and Megaflo appliances, making it a replacement component for compatible boiler maintenance and repair.

Check the appliance model and existing part number before ordering to ensure the correct fit.

The Baxi Flame Sensing Cable 5114749 is a replacement cable designed for use with selected Baxi boiler appliances.

The flame sensing system plays an important role in boiler safety by detecting whether a flame has been established and maintained during combustion. The flame sensing electrode monitors the presence of a flame and sends a signal to the boiler's control system. If a flame is not detected, the boiler can interrupt the gas supply and initiate its ignition sequence again where appropriate.

This replacement cable is suitable for a range of Baxi boiler models and product families.

The Baxi Solo 3 Thermistor Sensor 244540 is a replacement temperature sensing component designed for compatible Baxi Solo 3 boilers.

The thermistor monitors temperature changes within the boiler by varying its electrical resistance as the temperature rises or falls. The boiler's electronic control board uses these resistance readings to monitor system temperature and regulate heating operation accordingly.

This replacement sensor is an important part of the boiler's temperature control system, helping maintain accurate temperature monitoring and efficient operation.

The Potterton Thermostat Control Kit 907729 is a replacement temperature control component designed for compatible Potterton heating appliances.

A thermostat allows the user to regulate the temperature of their central heating system by controlling when heat is required. It works with the heating system to help maintain the selected temperature and provide greater control over home heating.

This replacement control kit is intended for compatible Potterton appliances. Check the existing part number and boiler model before ordering to confirm suitability.

The Baxi Hall Effect Sensor 5114767 is a replacement flow detection component designed for selected Baxi Duo-tec HE boilers.

The sensor detects water flow within the boiler's hydraulic system and relays this information to the printed circuit board (PCB). When the pump operates and water begins circulating, the sensor helps the boiler control system recognise the flow condition and initiate the appropriate operating sequence.

This component plays an important role in the boiler's control system, supporting the operation of heating and domestic hot water functions.

The Baxi Water Switch Throttle Black 5114748 is a replacement hydraulic control component designed for selected Baxi and Potterton boilers.

The water switch throttle forms part of the boiler's hydraulic system, helping regulate water flow in response to the operating requirements of the appliance. This component is intended for use in compatible boiler maintenance and repair.

Suitable for selected Baxi and Potterton models, this replacement part should be checked against the existing component and appliance details before ordering.

The Baxi 7809940 Limit Thermostat is a replacement temperature safety component designed for selected Baxi combi boilers.

A limit thermostat monitors the boiler's operating temperature and acts as a safety control if the temperature exceeds the permitted limit. It helps protect the appliance by interrupting operation when excessive temperatures are detected.

This replacement thermostat is supplied with screws and is suitable for selected Baxi Combi Instant, Duo-tec and Platinum Combi boiler models.

The Baxi 248000 Washer is a replacement sealing component designed for selected Baxi and Main domestic boilers.

Washers are used at connection points within boiler assemblies to create a secure seal between adjoining components. This helps reduce the risk of gas or water leaks and maintain the integrity of internal boiler connections.

Suitable for a range of Baxi and Main appliances, this replacement washer is intended for compatible boiler maintenance and repair.