Medium
S.54 on Glow-worm Energy7 Regular

Your boiler has paused because it has detected that the water is not circulating properly through your radiators or pipes.

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

Waiting period: Water deficiency in the circuit (flow/return spread too large)

From this model's manual
Verified against the Glow Worm Energy7 Regular installation & service manual, page 40.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your radiator valves to ensure they are fully open.Check your system pressure gauge; if it is low (below 1 bar), use the filling loop to top it up to 1.5 bar.Bleed your radiators to remove any trapped air that might be blocking water flow.

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