Medium
32 on Alpha H25 Xtraflame

Your boiler is having trouble communicating with the temperature sensor for your secondary heating area, which may cause that part of your home to not heat up correctly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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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

Low temperature zone 2 sensor fault

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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