Baxi Potterton Actuator Motor 248733 with Cartridge 720003100

Product Overview

The Baxi Potterton Actuator Motor 248733 with Cartridge 720003100 is a diverter valve replacement kit designed for use within selected Baxi and Potterton heating systems.

The actuator motor operates the diverter valve mechanism, while the cartridge is the internal valve component responsible for directing the flow of heated water between the central heating circuit and domestic hot water circuit. Together, these components help the boiler switch correctly between heating and hot water operation.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.

Technical Insight & Common Failure Symptoms

The diverter valve assembly plays an important role in combination boilers by controlling where heated water is sent depending on the user's demand. The actuator motor moves the valve position, while the cartridge controls the internal water flow path.

Over time, the actuator motor or cartridge may experience wear, sticking, scaling, or internal damage, affecting boiler performance.

Typical symptoms linked to a faulty actuator motor or diverter valve cartridge include:

• No hot water while central heating works normally
• Central heating operating when only hot water is requested
• Slow or inconsistent hot water performance
• Diverter valve sticking or failing to move correctly
• Boiler making unusual noises from the hydraulic section
• Intermittent heating or hot water operation

Replacing the actuator motor and cartridge together may help restore correct diverter valve operation and reliable boiler performance.

Compatibility

Manufacturer Part Numbers (MPN):

• 248733 – Diverter Valve Actuator Motor
• 720003100 – 3-Way Valve Cartridge

This part is designed for selected models within the Baxi, Potterton and Main ranges.

Please strictly verify the manufacturer part numbers 248733 and 720003100 against your boiler's technical manual, exploded parts diagram, or existing component before ordering to guarantee correct fitment.

Safety Advice

Boiler hydraulic components involve water, pressure, and internal heating system assemblies. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.