Anyway, I have an 18 year old Maytag gas dryer (model number DG 482 W)
that has suddenly started to cycle on and off in roughly 30 second
intervals. I don't think it's a heat buildup problem since it starts
cycling immediately after it's turned on. I've checked the ducting,
and everything is clear. The flame is a nice, bright blue.


A guess might be the ignitor circuit. Some monitor the current through
the ignitor to make sure it is dissipating sufficient power before
opening the gas valve. That current may have to be maintained while the
valve is open (maybe the ignitor must always be on when the gas is on).
It sounds like something is faking a flameout and the valve closes
until something cools. I'm glad it fails shutting the gas than leaving
it open!

Another great website:

http://fixitnow.com/faq.htm

It just helped me fix a gas oven, which may have a similar ignition
circuit.

http://fixitnow.com/2004/09/applianc...revelation.htm

Good Luck,

Jim