Low
S.31 on Glow-worm Energy7 System

Your boiler is working correctly but is currently idle because your heating controls are set to summer mode or are not currently asking for heat.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

No heating demand: Summer mode, eBUS control, waiting period

From this model's manual
Verified against the Glow Worm Energy7 System installation & service manual, page 50.
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 room thermostat or smart controller settings to ensure the heating is turned onIncrease the target temperature on your room thermostat to be higher than the current room temperatureCheck if your boiler's summer mode is active and disable it if you require central heating

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Related fault codes

S.30View →S.32View →

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