Drum won't turn; changed the belt; still won;t turn

In some dryer's the control panel relies on a thermistor rather than a CYCLING thermostat to regulate the drum's air temperature by monitoring the component's resistance changes; resistance goes down as temperature increases and up when temperature decreases. Once the drum's air temperature reaches a certain level required to dry clothes, the control panel shuts off the heater. The panel will turn the heater on again and begin another heating cycle when the thermistor indicates that more heat is needed to keep the air temperature constant inside the drum this is why in some cases the dryer will operate at lower cycles like gentle or low heat but not at higher settings?)

Lastly check your moister sensor. ( located inside the dryer door usually) Especially if machine seems to shut down early and clothes are still wet.
Test with a meter at room temperature and it should show continuity.
A failed moisture sensor will affect the dryer run time in the automatic moisture sensing cycle but it will not affect the heating of the dryer or the timed cycle. Which are reflected by the thermostats.

Check dryer Terminal block prongs both outside prongs should give combined 220, and 110 each if u check 1 outside & 1 center (ground) prong. Also check house electrical outlet for full voltage.

CHECK THERMAL SHUT OFF THERMOSTAT USUALLY LOCATED ON THE BLOWER. for OHMS or resistance with a meter. Should show a closed circuit. Ohms WHEN THIS FUSE BLOWS IT WILL SHUT DOWN EVERYTHING.

NEXT Test the PUSH start switch with meter for OHMS. Should show OHMS when pushed in or on start, and no ohms or infinity when in off position.

If you hear a humming/clicking sound from motor area you more than likely have a bad motor.
Try this test out to see if u have weak windings or relay/capacitor on motor.
Open the dryer door and turn by hand the drum while machine is on ON position. And you or someone else presses the door engagement switch in. If it starts up then u have bad windings

Another thing to check is the belt safety switch. With a multi meter.
Especially if u just replaced the belt. The belt safety switch is attached to the Tensioner and motor. IT LOOKS LIKE A DOOR SWITCH SOMEWHAT a little black pc of plastic with 2 prongs going into it. Sits at bottom of motor. Under the Tensioner. Attach meter clips to the 2 prongs on switch, Then when the little white push button is pressed in it should show continuity and none when released.

Lastly check ur DOOR SWITCH for continuity with a meter when the button is pushed in the (on/Door closed position,) it may have gone bad.

Hi,

There can be many reasons why your dryer will not start or turn...

The most common causes are the belt breaking or jumping off, or the motor goingbad...

Here are a couple of tips that I wrote will help you to figure out why yourdryer will not run...

Dryer Repair - The Dryer is not Turning

Dryer Repair - The dryer will not start


heatman101
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check the belt

Humming indicates motor is getting weak. If you look in the back compartment of your dryer you can probably see the belt. You can relieve the belt tension and then take the belt off the motor pulley. Once you do this, make sure the belt is out of the way and push the start button. If the motor turns it means it couldn't push the weight and is too weak to run. It make not turn without the belt on it either but you will hear if the sound is coming from the motor. In either case you need a new dryer or new motor if the dryer is pretty new.

the motor is more than likely bad but just to be safe check the blower wheel and make sure there is not anything in it then remove the belt and try to turn motor if the motor feels real tight then you need to replace the motor

Sounds like the belt that turns the drum has broken. the hum sound is the motor turning. Does it still get hot in the drum? If so then you need a replacement belt ($15-$25).You can open the rear or the dryer to confirm the belt is broken. Be sure to unplug from the wall outlet to avoid electrical shock.

I'd sure start by making sure the belt isn't broken. You can usually see the belt with a flashlight after accessing the panel (some are in front, others in the rear) - don't go probing around bare armed without unplugging the unit....

Look inside while it's 'humming'. Is the drum turning? If not it's most likely a broken drive belt.

It sounds like it is the motor or a stuck/obstructed blower wheel. You can start by opening the door, push the door switch in, hit the start button & see if you can turn the drum clockwise by hand. This might get it going. if the drum does not move by hand then the problem is probably within the blower. post your findings for a follow up

Try pushing start button while turing drum clock wise and see if drum will start spinning, sounds like bad start winding or relay