Medium
31 on Alpha CD18 / CD24

Your boiler has lost its connection to the remote thermostat or controller, meaning it may not be receiving instructions to turn the heating on or off.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Loss of remote control communication

From this model's manual
Verified against the Alpha Cd installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check if your remote thermostat has fresh batteries.Restart the boiler using the reset button or by turning it off and back on at the fused spur.Ensure the wireless receiver near the boiler has its power light on.

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