Lg dryer fuse keeps blowing but the heating element and thermostat all have continuity

Yes, the most common cause of a dryer blowing thermal fuses is a clogged or restricted exhaust vent.

DRYER OVERHEATING:

Heating Element
A defective heating element can make a dryer too hot. If the element partially shorts out, it can produce heat all the time, regardless of whether the dryer is calling for heat. Remove the heating element to inspect it. The coils should not be touching each other or anything else.

Other Causes and Conditions
Air Flow Problem
Dryers need good ventilation to work properly. If the vent is clogged it can make the dryer too hot. Clean all of the vent tubing thoroughly.

Cycling Thermostat
Although not common, a defective cycling thermostat can make the dryer too hot. The cycling thermostat is supposed to turn on and off the heat to maintain the proper temperature. If the thermostat is defective it may keep the heat on too long. The thermostat is not adjustable or repairable, it must be replaced.

Felt Seal
Most dryers have a felt seal at the front and rear of the drum to keep the heat inside the drum. If the felt seal is worn away or missing, the dryer may keep heating and make the dryer too hot. This is not common.

Blower Wheel
A defective blower wheel will not spin properly and will not vent the hot air, making the dryer too hot. Check to see if there is adequate airflow out of the dryer.


https://www.youtube.com/watch?v=3m5NZvY9V5Q

The thermostats (outlet and on element case) can still allow the heat to go to high, restricted airflow will also cause them to go.

Have you check the vent and make sure it not partially to fully blocked. Heat builds up and blows the fuse. A quick test would be remove the vent and run a load see if it works.

you have an airflow problem. Check the vent hose all the way out and the outdoor vent hood.
a simple verification can be performed by disconnecting the vent hose from the dryer and see if this solves the problem.

if its heated electrically, not by gas,then it sounds like the heating element has shorted to the case and this would blow the breaker

You may have had a short circuit between the heat selector switch and the element/thermostat!! Have a technician test the heat switch, and the element and thermostat.

your cycling thermostat needs changed too. the thermal fuse is your last safety measure that goes, which means your cycling thermostat is not shutting down the heat element once it detects the right temp hot air in the blower housing so it let the heat element glow until either the high-limit sensor shuts the heat down or the thermal fuse blows. Change the cycling thermostat and good luck

ask for old the fuse ,,lg have resettable thermostat...keep me posted,,its a push botton thermosatat..also they replaced this thermostat with a higher rated one,,,if you need part # just ask onthejob keeps uint from having to be reset...

I am sorry to hear this, my name is Marc White, i am self employed and it seems as though you have a bad timer, bad timer will cause the timer not to go to the off position and blow your fuse......change your timer..


thanks