Medium
305 on Worcester Bosch Junior 24i

Your boiler is staying in hot water mode even when you aren't using a tap, which is preventing your central heating from turning on.

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.

Technical description

The boiler is waiting for domestic hot water (DHW) operation to end

Engineer required

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

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