Low
FH on Ferroli Optimax

Your boiler is simply running a routine two-minute air removal cycle and is not currently experiencing a fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Air purge function (active for the first 120 seconds after ignition)

DIY fix possible

Wait 120 seconds for the countdown to finishEnsure the boiler power remains on during this periodOnce the cycle completes, the boiler should start operating as normal

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Related fault codes

F37View →A01View →

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