[pdh]

I purchased a digital multimeter today to test whether my issue is being caused by the flame sensor or the 2 valve coils. I have never used an ohm meter before.

My issue is similar to others with my gas appliance initially igniting and heating the dryer, but then 10 minutes later the ignitor will glow white, but there is no flame.

With the multimeter set to (20k) one valve coil reads 1.28 the other coil reads .55, 1.36 or 1.92 depending which of the 3 wires I test from the valve coil. When I move the dial to 200 I get infinity (as if there is complete resistance) and when I set it to 2000k I get 0 as if there is no resistance. Which setting should I use to get a reading? Why does resistance mean it is working?

When I use the meter (set at 20k) on the flame sensor it bounces around then settles on 0. If I have the meter set to 200 it settles at 1.1. Is the flame sensor suppose to be an open or closed circuit? Based on some other threads it appears I would want this to be closed (as some writers have shorted it to make their dryer heat up), so wouldn't that be a 0 on the meter?

[eric shubert]

the coils can test good when they are cooled down. but when they start to heat up they can break down. I once sat with a dryer for about 45 mins. before the coils failed