Low
S.31 on Glow-worm Easicom3 Combi

Your boiler is perfectly healthy and is simply waiting for a signal because it has been set to summer mode or the room thermostat is currently satisfied.

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

Noheatingdemand:Summermode,eBUScontroller,waitingperiod

From this model's manual
Verified against the Glow Worm Easicom3 Combi installation & service manual, page 45.
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 controller to ensure it is set to a temperature higher than the current room temperatureEnsure your boiler is set to 'Winter' mode if you require central heatingVerify that your heating timer or schedule is set to 'ON'

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Related fault codes

S.30View →S.32View →

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