My hotpoint dryer keeps over heating and shutting off

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
GOD IS still GOOD !!!!

the timer : if you use time dry the timer should always move and complete the cycle. if you use auto dry the timer uses a sensor to tell the timer to move. If your not getting any heat your sensor might not tell the timer to move.

So lets start with the no heat problem. First make sure your Vent is clear or just disconnect the vent and put a pair of womans stocking over the end to keep the dust down, This will ensure you do not have a blocked vent. ((( If you have a blocked vent on a gas dryer the safty sensor will shut off the gas valve and you will only get a little bit of heat))) Now try the dryer for small load, ((( if this solved your problem then you have a cloged vent )))

If this did not solve your problem then the coils on your gas valve in the dryer are probably bad.

unplug power cord and vacuum lint from motor

Strange. Heaters usually shut down with the spinning drum when door is open. If you check the schematic for unit you can check to see if in fact this is correct operation. Attached site usually has schematics for appliances. You might want to check. Search Over 2 1 Million Appliance Parts

sounds like the heating element of the dryer may have come loose and is shorting against the metal dryer box on top of the drum.
engineer job if you're not electrical

most likely, there is a blockage in your exhaust. take it apart and check every inch from your dryer to the outdoors. i clean mine once a year, it keeps the dryer running efficiently. when lint backs up in there, the heat cannot get out and there is a sensor that will shut off the heating element when it gets to a certain temp, so your clothes will take a long time to dry

probably bad timer.. motor or gears on inside are bad

Dryer outlet hose could be plugged or restricted not letting adequate air cirulate. Check this and the filter to be sure both are clear of obstructions. Make sure the flapper at the end of the dryer vent is working correctly.... A blocked vent will cause the temp to get too high and the unit shuts down rather than burn down the house.

Plugged filter or exhaust hose to outside could be clogged...Have someone turn the unit on and go out to see how much air is coming out of the vent. Should be a bunch. I'm guessing you have a blockage somewhere causing the unit to shut down and not catch on fire.