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I have a Kenmore gas dryer - model 110.78. It is not staying hot. I see the flame through the hole in the front and it ignites and it starts to get hot but when I check in like 20 minutes, its cold again.
I'm trying to determine if its the solenoids or the thermal fuse.
But if it was the thermal fuse, would it be heating at all?
Any help would be greatly appreciated!!
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Cause 1
Thermal Fuse
The thermal fuse is a safety device designed to protect the dryer from overheating. The fuse is located on the blower housing or at the dryer’s heat source such as the heating element on electric dryers or at the burner on gas models. The fuse should be closed for continuity meaning it has a continuous electrical path through it when good. If overheated the fuse will have no continuity meaning the electrical path is broken and the fuse has blown. A multimeter can be used to test it for continuity. Be aware that a blown thermal fuse is an indication of a restricted exhaust vent from the dryer to the outside. Always check the dryer venting when replacing a blown thermal fuse.
Cause 2
Gas Valve Solenoid
Gas dryers have two or more gas valve solenoid coils. The gas valve solenoids open the gas valve ports to allow gas to flow into the burner assembly. If a gas valve solenoid fails, the dryer won’t heat. To determine if one or more of the gas valve solenoids has failed, check the igniter. If the igniter glows and goes out but does not ignite the gas, the gas valve solenoid is defective. If one or more of the gas valve coils are defective, I recommend that you replace them as a set.
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So if it were the thermal fuse, would the dryer get hot at all? I checked the air flow and it is getting good air flow out the back of the dryer and also to the outside when I hook the hose back up.
The igniter does light the gas and for the first few minutes, the dryer starts getting hot but then cools off.
Thank you for your help!
when it shuts off, use a multimeter to test the fuse.
It never shuts off, it just stops getting hot. I'll check it anyway though to be sure.
How do you check solonoids
@pat112 read Cause #2
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