Low
S.109 on Glow-worm Energy Regular

Your boiler is currently in a power-saving standby mode and is working exactly as it should.

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

Product's standby mode activated

From this model's manual
Verified against the Glow Worm Energy Regular installation & service manual, page 29.
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 boiler's control panel or thermostat settings to ensure it is not scheduled to be offAdjust your heating timer or thermostat to request a higher temperatureWait a moment for the boiler to wake up once a heat request is sent

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