I have a Whirlpool Duet gas dryer, GGW9250PW3. When I turn it on, the igniter cycles, but there is no flame. There is gas to the machine, continuity across the terminals of the flame sensor, new solenoid coils. There is a chattering like noise when the igniter is not on. When I turn on the machine, there is a loud click. The tub turns. I would appreciate any help. Thanks. HP
If your dryer doesn't heat, check these:
Igniter
Gas valve coils
Thermal fuse
Igniter
Modern gas dryers use an electric igniter to ignite the gas from the gas valve. When it's working properly, the igniter glows bright orange. When it burns out, the dryer tumbles but there's no heat because the gas can't ignite. When the igniter burns out, you need to replace it. If the igniter is held by a tension bracket, you very well may need to replace the bracket too.
The igniter is inside the dryer housing, near the bottom front, usually in a cone-shaped metal tube (the force cone). It's about 2 inches long. It's mounted to the far end of the burner tube, and it has two wires attached to it--or to the tension bracket, if there is one.
Gas valve coils
Watch the igniter. Does it glow bright orange, then shut off without igniting the gas? (When the gas ignites there's a large blue flame.) If so, there may be defective coils on the gas valve. Mounted on the top of modern gas valves, there are black electrical coils. The coils, when energized, open the gas valve. If one or more of the coils are defective, the valve doesn't open and the gas cannot ignite. Because it's often difficult to properly test the coils, it's usually best to replace both (all) of them at the same time.
Thermal fuse
On many dryers, there's a thermal fuse (a heat-sensitive fuse that blows if the dryer overheats) mounted to the exhaust duct inside the back cover panel. The fuse is about an inch long. It's usually embedded in black resin and mounted in a white plastic housing.
If the fuse has blown, it has no continuity. When this happens, your dryer either just stops heating, or it doesn't work at all. Be sure to inspect the venting/heating system before replacing the fuse to put the dryer back into operation. (You can't re-set this type of fuse.)
Use a volt meter and check were it plugs into (not the igniter but were it plugs into) and start the dryer and check for 120 volts into the plug..if 120 volts at that plug the igniter is bad and it needs replacing.
. If it is going out and not coming back on several minutes later then the exhaust vent may be clogged. Check the lint filter and exhaust vent all the way to the vent outlet to make sure they are not clogged.
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