Whirlpool Thin Twin, dryer thermal cutoff failed twice

Dryer Repair
,
1

Friends Whirlpool Thin Twin came with purchase of condo half a year ago. A month ago it stopped heating. I checked continuity and found the Thermal cut-off switch was open. Purchased [AppliancePartsPros.com LTE6234DQ2](http://www.appliancepartspros.com/Appliance-Parts/whirlpool-screw-item-number-ap3011603.aspx"]Dryer thermal cut-off kit[/URL] and replaced as per instructions. Heat has returned and dryer works as designed.

A month goes by and dryer has no heat again. Check parts from the following diagram: [URL="http://www.appliancepartspros.com/partsearch/model.aspx?model_id=241984&diagram_id=28152802#d28152802)

AP3094244 Dryer thermal cut-off: open (again)
AP2973862 Dryer high-limit thermostat: closed
AP2946932 Cutoff - tml: closed
AP3131939 Dryer cycling thermostat: closed
AP3134638 Heating element: closed, reads ~12 ohms
Checked both leads of coil to frame, all open

Before I go and replace this same part again, what else should I check? What other steps are necessary to diagnose the original cause of this failure?

Checked vent hose: clear of debris

2

I am having the same problem a you had. I suspect the "thermostat heater" has gone bad, as my unit runs at high heat no matter the selector setting (fairly certain that selector is operating correctly, as the ohms increase as I turn dial to increase heat amount.

Can you tell me what you found to be the fix, as I hate to keep guessing and replacing expensive parts.

Thanks in advance.

Respects,

Mark