Hi, I'm just diagnosing the same problem and have read advice on this and other sites that both switches shoujld be closed circuit.
My machine is a Creda Simplicity, and the switch on the left is the 36fxe14, and it has a green spot.
Hope this helps.
Baldrick
December 2007
I can answer this question...
can anyone give me the wiring layout to the thermostats on my creda t622cw?