Medium
40 on Ferroli Optima 201

Your boiler has detected a temporary temperature issue and is pausing itself to prevent damage, but it should restart automatically once cooled.

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

Temporary shutdown fault - resets automatically as soon as the value comes back within the boiler’s normal working range

From this model's manual
Verified against the Ferroli Optimax 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 that all radiator valves are fully openCheck the system pressure is between 1 and 1.5 barWait for the boiler to cool and restart automaticallyEnsure there is no air trapped in the system by bleeding radiators

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