Thermador PRG36 Oven lights always off, Cavity fan doesn’t work or it, works at one speed only

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Problem	Possible Solutions
Oven lights always off	1.	Check P11 connector on the Display Board and the wires.
	2.	Check the transformer.
	3.	Check that the lamps are not burnt.
	4.	If OK, replace Power Board.
Cavity fan doesn’t work or it	1.	Check P10 connector on the Display Board and the wires. (Check also
works at one speed only.	2.	P19 terminal for single oven only).
		For double oven only, check P2 connector on the Auxiliary Relay
		Board and the relay outputs.
	3.	If relay outputs don’t work, check also the two low voltage cables
		between Power and Auxiliary Board.
	4.	Check R2 (39 ohms) resistor in series with the fan coil.
Cooling fan doesn’t work or it	1.	Check P10 connector and P19 terminal on the single oven Power
works at one speed only.		Board or P11 connector on the double oven Power Board and their
		connections. If Power Board output is not activated, replace the board.
	2.	Check R1 (78 ohms) resistor in series with the fan coil.
	3.	Check the circuit (latch switch) to by-pass the resistor for high speed
		in self-clean.

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