Low
S.109 on Glow-worm Energy7 Regular

Your boiler is currently in a temporary energy-saving mode and is waiting for a command to start heating.

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 Regular installation & service manual, page 40.
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 that your room thermostat and timer are set to 'on' or 'active'Increase the temperature setting on your thermostat to see if the boiler triggersTurn the boiler off at the fused spur switch, wait 30 seconds, and turn it back on

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