Medium
DHW FLOW SWITCH on Baxi 130 HE (range)

Your boiler thinks you have a hot water tap turned on even when they are all closed, which may prevent your central heating from working properly.

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

Continuity across W on 5-way connector from PCB. Check if DHW flow switch is blocked.

Engineer required

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

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