Hello, my auxiliary heating (GP0, 3.0 TDI, Original SH, Bj 2006) has stopped operation and locked itself. A friend with VCDS has read out the error codes: 01412 – Fire candle with flame monitoring (Q8) 010 – Interruption/short circuit after Plus – Sporadic 01412 – Fire candle with flame monitoring (Q8) 008 – unplausible signal 02251 – heater locked After unloading and unlocking it can now be started again but without noticeable heating power everything goes again after approx. 4 minutes from: I found some clues that the glow candle can be burned free with VCDS or via Webasto DIAGNOSE, but unfortunately no concrete instructions can be found, especially not for the Phaeton. If someone can post these here or link them, that would be very nice thanks Moseltaler