Dryer will not get hot.

First run the dryer for a few minutes and check the interior to see if it is warm. If it is warm check the airflow at the outside vent with the dryer running. if the airflow is good, Then it depends if it is an electric or gas dryer. For a gas dryer suspect intermittent coils on the gas valves. (a common problem) Check and see if the drum rotates when you quickly open the door with the dryer running. On Kenmore dryers the motor will still run without the drum turning if the belt is broken. If it does not heat up at all suspect the thermal fuse ( The number 1 cause of no Heat on gas dryers). Also make sure the gas valve is open.

Dryer possibly overheating due to plugged vent. They will go into a safe mode and shutdown the heater if not enough airflow. Results in starting hot but ending with a cold load of clothes! Check the belt to ensure the dryer fan is working and that the drum is properly rotating. If OK and the vent is clear then check the thermostat. Depengin on the type (Gas vs electric) there are a number of limit thermostats as well as a main thermostat. Likely you have a a limit switch kicking in to shut off the heater. Normally from lack of airflow (plugged vent, fan broken, etc...) Once unit cools down will start back up but shut down again once the heater comes on. Also check to see if the heating element is shorted to the side of the metal case. Will heat up and be intermittent.

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If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes 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 different things that can go wrong causing the dryer not to heat.

check out this electric no heat tip...


heatman101

Tromm LG DLG5988 gas dryer
Heater not turning on Gas light on Cooling light on at the same time Heat Sensor light on
I checked gas it is on and flowing through the pipe up to the dryer
Can't find igniter, reset switch or fuses on the dryer

if your apliance is gas dryer you need chek:
1-thermal fuse.
2-sensor flame.
3 ignitor.
gas valve.

if is electric dryer:
1-thermal fuse.
2-heater element.

The heat is regulated with a Klixon mounted next to the blower housing near the vent pipe so it can judge the temperature of the air coming out of the drum.Right next to it is a melting type fuse. If the dryer runs and gets too hot the fuse will melt.But the dryer will still run. So if the fuse is good(continuity) and the dryer control(cycle) thermostat is also good then you should have power going to the gas valve assembly when the machine is running unless the timer is in the no heat or wrinkle free/cool down mode. When the gas valve assembly is energized the flame sensor flame sensor mounted outside the burner chamber detects the heat from the ignitor. When the heat is very intense then the sensor shuts down the ignitor
Ignitor and that frees up the power so that the coils can be fully energised and open the gas gates. The gas comes out and hits the red hot igniter and you have ignition. It stays on for maybe 2 or 3 minutes or until the control thermostat is satisfied and shuts down power to the gas valve assembly. So... If your gas dryer has a good flame sensor and a good igniter AND the dryer will work some and quit, replace these: Gas operator coils
part# 279834
The coils get hot and quit on these machines when they get a little age on them. It is aggrevating because it is a hard to diagnose thing. But well worth the 20 bucks. SOURCE


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Replace these solenoids on the gas valve. Feel them if you can. They get hot and quit.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

There is a glow bar that ignites the burner. The glow bar probably needs replacing, check it with an ohm meter, usually you can see if the glow bar is broken because it is ceramic and is usually broken. Be carefull when replacing the new one not to touch the part that glows

My gas dryer will not heat, what could stop my dryer from heating?
A - Things that could stop a gas dryer from heating:
- glow bar igniter, thermal fuse ( not all models ), coils on the gas valve, gas valve, thermostats,motor heat switch, timer, selector switch, sensor.
A page for checking gas dryers is here.

I read on another page
1) One of the thermostats could have a reset switch on it to cure problem... do not know where to find it or what it looks like! ....
2) May need to replace the element...
3) Could be the exhaust thermostat / or heater and thermostat complete/ check continuity...should be normally closed(complete circuit)
Any help to you ????
Best wishes willow