Dryer Not Heating - Thermostat continuously tripping

[JonG]

I have had this LG DLG0332W dryer for a few years now and this problem just started about two months ago. The dryer will run but not heat. I have to manually reset the thermostat to get it to work. It will heat for 1-5 loads and then trip again. I have checked the venting and had the ducts cleaned. Is it likely that just the thermostat needs to be replaced?

[RegUS_PatOff]

Check for good air-flow with the Vent removed.

Check the temperature out the Vent with an empty load, Timed Dry, high heat.

It should cycle somewhere between 135F and 160F

[LGMatic]

I have experienced the same problem but I do not see any thermostat to reset.  Could you provide the location.

[RegUS_PatOff]

1 of the (2) Safety Thermostats on the Heat Funnel Duct may be the re-settable type

click on picture