Low
P.11 on Vaillant aquaPLUS

Your boiler is currently running a setup program to test its gas pressure and is not in its normal operating mode.

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.

Technical description

Setting-up program: Natural Gas (G20) mid setting point pressure

DIY fix possible

Wait for the program to finish automaticallyPress the 'i' button to monitor progressIf it persists, turn the boiler off and on again to reset it

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Related fault codes

P.12View →P.13View →

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