Question about Maytag Atlantis MDG7400AW Gas Dryer

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Dryer runs, but no heat , gas dryer and everything is reasonbly clean. It is a maytag model#mdg7400aww

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Check the following components to combat this issue.

1. Gas valve coils
Igniter glows, then shuts off without igniting gas - the problem is probably with defective coils (black, located on top of the gas valve). It is recommended to replace all coils (usually two or three) if found defective.

Note: Sometimes the whole gas valve may be defective, thus not letting the gas out. However, this problem is not common.

2. Thermal fuse
Most dryers have a thermal fuse, which burns out when the dryer overheats, in which case the dryer will either not run at all or stop heating. The fuse is usually located on the vent duct, inside the dryer. A blown fuse will show no continuity when measured with a meter. Before replacing the fuse, make sure the blower wheel is not broken or clogged, and there is nothing blocking the venting.

Note: It is recommended by most dryer manufacturers to replace a hi-limit thermostat when replacing a thermal fuse.

3. Igniter
Igniter may burn out or break. Replace the igniter if found defective.

Note: Igniters are very fragile and break easily. It is recommended to handle the igniter only touching the ceramic part of it (usually white in color).

4. Flame sensor (or radiant heat sensor)
Replace the sensor (located near the igniter) if found defective.

Posted on Jun 16, 2009

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Hi, If you are having problems with your gas dryer not heatingthe most common problem is that the ignitor goes bad. Even though it glowssometimes it is still not working properly. if you dryer is gas check out this gas no heat tip.... If you have an electric dryer, you can have many differentthings that can go wrong causing the dryer not to heat. check outthis electric no heat tip...

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Hi, It sounds like that the coils on top of the gas valve are not opening the valve later in the cycle. They get weak enough ovwer heat and will not open the valve. You can listen for the ignitor to click on and then you can hear the gas ignite. If late in the cycle you hear the igniter click and then no gas ignition, change the coils.
You should also make sure the vent going to the outside is clear of any lint or kinked.
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