Low
S.109 on Glow-worm Energy7 System

Your boiler is currently in a temporary sleep mode and is functioning 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 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 external heating controls or room thermostatIncrease the temperature or schedule setting on your programmerWait for the boiler to wake up once a heating or hot water demand is triggered

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