How to Repair a Motorised Central Heating Valve

How to Repair a Motorised Central Heating Valve ? Follow 7 step

A motorised central heating valve plays a crucial role in controlling the flow of hot water or steam to different areas of your home. If you’re experiencing issues with your motorised valve, such as a lack of heating in specific zones or irregular temperature regulation, it may require repair. In this guide, we’ll walk you through the step-by-step process of repairing a motorised central heating valve to restore its proper functionality.

Step 1: Identify the Issue

Before diving into the repair, it’s important to identify the specific problem with the motorised valve. It could be a faulty motor, wiring issue, or valve mechanism failure. Understanding the issue will help you take appropriate action.

Step 2: Turn off the Power

For safety reasons, it’s crucial to turn off the power supply to your central heating system before proceeding with any repairs. Locate the main power switch or circuit breaker and switch it off to prevent any electrical accidents.

Step 3: Remove the Valve Cover

Locate the motorised valve on your central heating system. Using a screwdriver or the specified tool, carefully remove the valve cover. Set aside the screws in a safe place, ensuring you don’t misplace them.

Step 4: Inspect the Wiring

Take a close look at the wiring connections inside the valve. Check for any loose or damaged wires. Ensure that the wiring is securely connected to both the valve and the control unit. If you find any issues, repair or replace the wiring as needed.

Step 5: Test the Motor

Once the wiring is inspected and fixed, it’s time to test the motor. Connect the power supply temporarily and observe the motor’s movement. If the motor doesn’t rotate or operates erratically, it may need to be replaced. Consult a professional if you’re unsure about replacing the motor.

Step 6: Check the Valve Mechanism

Examine the valve mechanism for any blockages or debris that may be hindering its proper operation. Clean the valve and remove any obstructions carefully. Ensure the valve moves freely and smoothly.

Step 7: Reassemble and Test

Reattach the valve cover securely using the screws. Once everything is reassembled, restore power to the central heating system and test the repaired motorised valve. Check if the heating zones are functioning correctly and the temperature is being regulated as desired.


Repairing a motorised central heating valve is a task that requires careful attention and knowledge of the system. If you’re unsure about any step or encounter complex issues, it’s recommended to consult a qualified heating engineer or professional for assistance. Restoring the proper functionality of your motorised valve will help ensure efficient heating throughout your home.