High
62 on Alpha E-Tec Plus 33

Your boiler has lost its saved settings for the air and gas mixture and needs to be professionally reconfigured to run safely and efficiently.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Full boiler calibration required - This may occur when the PCB is replaced or if the parameters are altered in the air/gas section

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

60View →61View →

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