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.

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.

Technical description

Temporarily ignoring CH requests to limit temperatures of the appliance components

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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