Low
S.04 on Glow-worm Betacom4

Your boiler is operating correctly and is currently firing up to heat your radiators.

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: Burner on

From this model's manual
Verified against the Glow Worm Betacom4 installation & service manual, page 35.
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

This fault may be fixable without an engineer. Check your manual first.

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S.00View →S.02View →S.03View →

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