Low
P.02 on Vaillant Combi Compact 242EB

Your boiler is not broken; it is simply running a manual test mode to check how it performs at its lowest power setting.

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

DIY fix possible

Wait approximately 15 to 20 minutes for the test program to finish automaticallyTurn the main power dial or 'Mode' button off and back on to reset the displayPress the 'i' and '+' buttons simultaneously if the code persists

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