it is found inside the back plate behind the element plate ,you will see two black wires coming out 1 goes to the heater element the other to the main connection box.it looks like a watch battery but bigger.if this has helped you could you possibly take a photo of the wiring and send it on a attachment i am on page 11 under tumble dryer white knight cl 447 wv leave a message and i will put my e-mail address on for u.
mick, February 2005
