Aug 14, 2014 - Cleaning your dryer's lint trap, screen and vent is a great way to keep it using energy efficiently. ... (Of course, if you can hang your clothes to dry, you'll not have to go ... Now use the vacuum to remove any lint from the lint trap.
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https://www.youtube.com/watch?v=-qu0OF9V2vA
Dec 27, 2011 - Uploaded by OcRefrigeration & H.v.a.c.
This Video Shows Where a " Lint Screen " is in a Stackable Washer Dryer and How to Remove it. Clean it ...
I would check inside and see the blower itself it may have lint or debris obstructing it, see if u can turn it by hand another thing to check is for full 220 at the outlet and terminal cuz if u only get 110 u will be able to run motor but have no heat
Most Dryers has a thermal switch that when the air flow gets so hot it will shut down the dryer until it cools down or on some models the thermal switch has to be replaced .. The most common problem to cause this is a restricted air flow somewhere in the exhaust of the heated air causing the dryer to reach too high of temp, which could cause a fire .. Hope this information is help full......
have a repair man check to see if the sensor that turns on the heat in timed or sensor mode has a good connection or needs replacing if that doesn't work it may need a new computer
it may be in the start button or it may be a sensor on the door is not working properly. you also may have a breaker issue. on alot of dryers you have a 2 pole breaker and if you lose one side of the power at that breaker it can lose some of its capacity to operate certain functions on your appliance