Medium
0 or -. / H on Ideal Maximiser SE

Your boiler is working fine to heat your radiators, but it isn't heating your hot water tank as it should.

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

The central heating installation is correctly heated, but the hot water tank (if present) is not.

Engineer required

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

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