Model MDE4000AYW, Dryer runs full hot no matter where I set the temp selector. It appears the temp selector may be bad? The sliding selector seems to have 0 resit.(open cir) white to black. Thanks for the help

The high limit sensor might be bad, not allowing it to get to a hotter temp.

try using a code reader to reset the CPU as sometimes a battery change will corrupt the CPU program

Hi,
The cycling or operating thermostatis often the problem when a dryer runstoo hot, but there are also other things that can make it run hot also.

Here is a tip that I wrote that gives more details about why a clothes dryer will get too hot.

Clothes Dryergetting too hot

heatman101

you can do it but before we start disconect the dryer duct and run it to see if the duct is cluge and full with lint make sure the air comming out from the house is in the same presure that it come out directly from the dryer.
in the unit there it thermo fuse and it is on the air vent duct that come out from the vent. what model you got i give you the part # and the location.

when was the last time you cleaned it out,try running it with the vent line removed,you need to clean out the duct that the lint filter slides into,vac out the inside of dryer where the motor is,if you have a shop vac put it on blow and blow off the motor and clean out the vent line and the outside vent,if the vent line is long i use a leaf blower to clean out the vent line,also is it gas or electric?next time send model number?if it's gas you could have bad gas coils,when they heat up they fail,clothes are warm at end of cycle.run the dryer for 15 to 30 minutes and check to see if the flame is still lighting if not bad gas coils.hope this helps

You might want to replace the thermacouplar. Sometimes when they are going out , all will appear to be alright but as you stated it takes a long time for the flame to come back on. This sounds to me like the thermacouplar is going out.

One of the switches that controls the heating element has not closed.

sounds like the pressure switch is bad

This is one of those problems that could be a number of issues. It could be a timer contact stuck in a hot condition, it could be the operating thermostat inside the unit, or if you have a heat cycle selector switch, it may have shorted as well. Each one of these items should be tested with an ohm meter to verify which one of them is the bad part. Let me know if you need further help.