Originally Posted by: cybolt What you have suggested is probably beyond my level of expertise. I do have a multimeter but I figured I'd start by checking out different components. Does the problem really sound like a wiring issue because I've inspected them all and there are none loose, frayed, whatever?
Cybolt,
What type meter do you have, analog (needle) or digital (display) ?
Do you have at least 1 meter "alligator clip ?
I don't think you have a "wiring problem", I included the wiring diagram as an assist for you to track the heat circuit and components, to determine which part has failed.
Testing resistance and closed circuits, is a good, proper test, but not as accurate as a voltage test, in a lot of cases, I prefer voltage tests, you only need to be careful, and run a circuit test once.
The basic idea was:
If you had 120 VAC at the blue wire on the gas valve connectors, that would tell you all your thermostats and timer and wiring,is OK, and your problem is in the burner assembly components(coils, igniter, flame switch).
If you have NO voltage at the blue wire, then you start tracing voltage back, through the fuses and thermostats, back up to the timer, until you find it.
If you use the wiring diagram, as a guide, the unit dismantled, and unplugged,
You should disconnect the wires from each component and check for a closed circuit(on each) across the 2 terminals, with your meter, they should all have a closed circuit, at room temperature.
If , or when you get to the timer heat circuit, you'll have to put the timer in a drying selection(timer dry preferred) and check the timer contacts for a closed circuit as well.
I'm sure you'll do fine,it may sound more elaborate than it is,
:) :) :)