Low
S.0 on Glow-worm Ultimate 3 25R

Your boiler is currently in standby mode because it has not been asked to provide any heating or hot water at this moment.

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

Heating mode: No requirement

From this model's manual
Verified against the Glow Worm Ultimate 3 25r installation & service manual, page 32.
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 programmer settingsEnsure your heating is turned on and set to a higher temperature than the current room temperatureCheck that your hot water timer or schedule is active

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