Low
S.0 on Glow-worm Essential

Your boiler is currently in standby mode because it has reached the requested temperature and does not need to fire up at this moment.

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

Heatingmode:Norequirement

From this model's manual
Verified against the Glow Worm Essential installation & service manual, page 33.
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 smart controller settingsTurn up the target temperature to see if the boiler activatesNo physical intervention is required as this is a normal operating status

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Avoid the next call-out bill

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