Medium
28 on Worcester Bosch WR325 RSF

Your boiler is struggling to communicate with your wall-mounted thermostat, which is currently preventing the 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.

What the manual says

Manufacturer manual

Remote thermostat

From this model's manual
Verified against the Worcester Bosch Wr325 Rsf installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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