Halstead Finest Platinum Boiler Diverter Valve Actuator Motor 500642

Product Overview

The Halstead Finest Platinum Boiler Diverter Valve Actuator Motor (Part Number: 500642) is a replacement component designed for selected Halstead heating systems.

This electronic actuator operates the boiler's diverter valve mechanism, helping to direct heated water between the central heating and domestic hot water circuits according to demand.

Part number 500642 is identified as a Diverter Valve Electronic Actuator & Clip in Halstead's spare-parts documentation. Correct operation of the actuator is important for the boiler to switch between heating and hot water functions.

ℹ️ Product Condition Options:

This part may be available in New or Refurbished condition. Please select your desired option from the dropdown menu above. Refurbished parts should be professionally tested to confirm correct operation before installation.

Technical Insight & Common Failure Symptoms

The diverter valve actuator provides the mechanical movement required to operate the boiler's diverter valve. When the actuator or associated valve mechanism fails to operate correctly, the appliance may experience problems switching between central heating and domestic hot water.

Possible symptoms that may indicate an actuator or diverter valve problem include:

• Central heating working but domestic hot water not heating correctly.

• Domestic hot water working while central heating fails to operate correctly.

• Intermittent heating or hot water operation.

• Diverter valve failing to switch between heating and hot water positions.

• Actuator motor failing to respond correctly to boiler control signals.

• Unusual noises during diverter valve operation.

These symptoms do not necessarily confirm a faulty actuator motor. Similar issues may result from a sticking diverter valve, electrical connections or other boiler components. Professional diagnosis is recommended before replacement.

Compatibility

This part (MPN: 500642) is identified for selected Halstead Finest Platinum boiler systems.

Please verify the part number against the boiler's technical manual and existing component before ordering to ensure correct fitment.

Safety Advice

Boiler diverter valve actuators and associated electrical and hydraulic components should only be diagnosed, removed or installed by a suitably qualified and competent heating engineer.

Always isolate the appliance's electrical supply before carrying out any work and follow the manufacturer's servicing instructions. Where work involves opening the hydraulic circuit, the system must be safely cooled and depressurised. Appropriate electrical, leakage and operational safety checks must be completed before the boiler is returned to service.