Medium
372 on Worcester Bosch Greenstar CDi Compact

Your boiler is temporarily pausing your heating as a safety precaution because it is becoming too hot and needs a short moment to cool down.

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

Temporarily ignoring CH requests to limit temperatures of the appliance components

From this model's manual
Verified against the Worcester Bosch Greenstar Cdi Compact installation & service manual, page 66.
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 that all radiator valves (TRVs) are open to allow water flowVerify the system pressure is between 1.0 and 1.5 barEnsure there are no blockages at the external ventsWait for the boiler to cool down and reset automatically

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