Low Information
P.02 on Vaillant ecoTEC Plus 615

Your boiler is not in a fault state; it is simply running a pre-programmed test to check how it performs at its lowest power setting.

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

Minimum load test program

What causes this fault?

This code appears because the boiler has been manually or automatically triggered to run at its lowest possible firing rate. It is an intentional test mode used to check the stability of the flame and the accuracy of the gas valve settings. Since it is a controlled test rather than a mechanical failure, your boiler will return to normal operation once the program finishes.

DIY fix possible

Wait approximately 15 minutes for the program to finish automaticallyPress the 'Back' button (represented by a left-facing arrow) to manually exit the testTurn the boiler off and back on again if the screen remains stuck

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Related fault codes

P.01View →P.00View →P.06View →

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