I have an older Kenmore gas dryer that does not heat. I have changed the thermal fuse and it started to heat again then it stopped heating after a while.

that is ur glow bar or igniotror that is common,, check ur ignitor, thermal fuse, or secondary gas coils, those are what are usually wrong with no heat on gas dryers

Commontly thermal fuse is damage need check and change if necessary.

Hi

Please check the things that could stop a electric dryer from heating:
- House fuse or breaker (needs two of them), heating element, burnt wire, thermostat(s), thermal fuse (not all models), motor heat switch, timer, selector switch, burnt power cord/plug.
And also check the things that could stop a gas dryer from heating if you have a gas dryer:
- Glow bar igniter, thermal fuse (not all models), coils on the gas valve, gas valve, thermostats, motor heat switch, timer, selector switch, sensor.

Please do rate the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

changed the thermal fuse heats for little while but stops blowing heat

Hi


Things that could stop a electric dryer from heating:

• house fuse or breaker ( needs two of them )
• heating element, burnt wire
• thermostat(s), thermal fuse ( not all models ),
• motor heat switch, timer, selector switch,
• burnt power cord/plug.

You can check these things using an ohmmeter/multimeter from here.


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.


Please do rate this solution as FixYa and revert for further assistance.

Thanks
Rylee

Most likely causes are:

- one of several thermal fuses/thermostat
- broken heating element

Hi

Things that could stop a electric dryer from heating:

- house fuse or breaker ( needs two of them ), heating element, burnt wire, thermostat(s), thermal fuse ( not all models ), motor heat switch, timer, selector switch, burnt power cord/plug.
A ohm meter test for these parts is here.

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.

Please do rate the solution as "FixYa" and revert for further assistance.

Thanks
Rylee

Q - My electric dryer runs but will not heat, what could stop my dryer from heating?
A - Things that could stop a electric dryer from heating:
- house fuse or breaker ( needs two of them ), heating element, burnt wire, thermostat(s), thermal fuse ( not all models ), motor heat switch, timer, selector switch, burnt power cord/plug.
A ohm meter test for these parts is here.
Q - 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.

Change your cycling thermostat. When your cycling thermostat fails, then the reponsibility of your heating element to shut down goes to the high-limit thermal shut off (closest to heat element) and the thermal fuse. Your cycling thermostat should shut down heat element when it detects about 140* air in the blower housing. Yours can't detect that anymore so it lets your dryer heat up and up till you blow the thermal. new cycling thermostat and thermal

Cause 1Thermal 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.
Parts Cause 2Gas 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, we recommend that you replace them as a set.
Parts Cause 3Igniter
The igniter uses heat to ignite the gas in the burner assembly. If the igniter is not working, the gas will not ignite, preventing the dryer from heating. To determine if the igniter has burned out, use a multimeter to test the igniter for continuity. If the igniter does not have continuity, replace it.