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Why is my gas dryer not staying hot what would cause it

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Good day,
Multiple reasons a dryer refuses to heat. Try following this outline and use the tutorial if you need to access the front of the machine.

Here are items to check. You will need an ohm meter to perform some of these tests.
1. Make sure the gas is turned on to the appliance.
2. Remove the back cover of the dryer. In the center bottom is a small skinny white ceramic device, held on with one screw.
A picture of the item appears at the bottom of this explanation.



Remove one of the wires, and check it with an ohm meter. It should show zero ohms of resistance. If not, it is defective, and needs replaced. This device on your brand causes 80 to 90% of all no heat problems.
3. As well, there are 3 or 4 other thermostats in the area, either round or rectangular, with 2 wires going to them. Check all of them if needed. They should all check zero ohms.
4. To check the igniter, you will have to remove the front panel. A tutorial follows, on how to do that.
Locate the gas valve, on the left side. Follow it forward, you will see the 2 wires on a plug, and at the tip of the burner tube, the igniter itself. Unplug, and check the igniter leads. It should read about 20 to 30 ohms. if not, it has burned out and needs replaced.
5. On the gas valve itself, are 2 black coils, held on with a 2 screw bracket. They can fail, but cannot be tested with a meter. If they are bad, the heating system will light the igniter, and shut down without firing the gas. All components must be in place to perform this test.
That covers 99.5% of all issues. There are others, such as the timer, heat selector switch, centrifugal switch in the main motor, but are extremely rare.
The tutorial below is not about heat trouble shooting, but is supplied to show how to gain access to the front of the machine.
http://www.wikihow.com/Replace-a-Dryer-Belt-on-Whirlpool-Models

why is my gas dryer not staying hot - 5726309.jpg

Posted on May 09, 2010

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Posted on Jan 02, 2017

mrbobfixit
  • 259 Answers

SOURCE: dryer wont stay hot

Assuming you have removed the lower access panel (two or three scres all the way at the bottom of the lower front panel) to view the glow plug (ignitor), if you see the ignitor cycle on but the gas does not ignite after the machine initially heated in the beginning of the cycle you will want to replace your gas valve coils. They are the round black things mounted to the top of your gas valve.
This should solve your problem.
Good luck to you!!

Posted on Jul 13, 2010

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