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S.109 on Glow-worm Essential

Your boiler is currently in standby mode and is not programmed to provide heating or hot water at this time.

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'sstandbymodeactivated

From this model's manual
Verified against the Glow Worm Essential installation & service manual, page 34.
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 controller, room thermostat, or programmer settings.Ensure the timer is set to an active 'On' period for your heating or hot water.Increase the target temperature on your room thermostat to see if the boiler wakes up.

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