Low
d.22 on Glow-worm Ultimate3 Combi

Your boiler is currently detecting a request for hot water and is operating exactly as it should.

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

StatusoftheDHWdemand

From this model's manual
Verified against the Glow Worm Ultimate3 Combi installation & service manual, page 42.
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

No action is required as this is a normal operating status message rather than a fault code.If your hot water is not working, check that your taps are fully open and there is no airlock in your pipes.

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