Low
P.00 on Glow-worm Compact

Your boiler is currently running a routine automatic process to clear trapped air from its internal pipes to help it heat your water and radiators more efficiently.

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

Purging the domestic hot water and heating circuit

From this model's manual
Verified against the Glow Worm Compact installation & service manual, page 48.
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

Wait 5 to 10 minutes for the automatic process to complete.Observe if the display automatically returns to the current temperature reading.If the code persists for over 30 minutes, switch the boiler off at the mains for one minute and turn it back on to restart the system.

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