Customer Questions and Answers for Dryer Belt by Whirlpool

John, it sounds like an idler pulley is going out, this pulley is what keeps constant tension on your drive belt, part number is WP37001287

Hello Chris. No, that is part of the motor. If it is bad, you will need to replace the motor.

Dianne, You will want to check the rollers on the unit to make sure that they are rolling properly and not seizing up.

Hello Mr. Mike, Belt WP40111201 should operate properly on the model number provided.

Hello Carmen. You will need to check the belt WP40111201 and the motor in the unit.

Hello Joe. You are installing the belt wrong. Use this link to look at a diagram of how you need to run the belt on the unit. http://forum.appliancepartspros.com/dryer-repair/25860-dryer-belt-diagrams.html

Hello Bobbie, You have to use the belt listed by the manufacturer for the drum to turn at the correct RPM. If you use a different belt it will not be the exact length and the drum will either spin too fast or too slow which will cause an incorrect tumble, severely impairing the units' ability to dry the clothes properly.

Silvana, Unfortunately that model number is not showing as a valid model number and in order to be able to assist we would need a valid model. If this unit is an international unit then we would have no information to be able to assist.

Jerry, There are 2 components other than the thermostats which would cause the heating element not to work. First is the motor and second the timer. The best option is to disconnect the power to the unit and access the heating element. Disconnect one wire that is going to the heating element, preferably the one on the thermostat side. Plug the unit back up and using a multimeter you will want to turn the dryer on and test for 120 vac at the terminal on the heater where the wire was disconnected. What this will do is eliminate the heater element itself and the motor. If there is 120 vac at this point then you know the heater is good and the motor is good because the other 120 vac coming through the thermostats is the timer side of the circuit. If there is not 120 vac at that point then you will want to test the other terminal on the heater and check for 120 vac. If there is not 120 vac then the motor would be bad and if there is 120 vac then the heater would be the issue. If there is 120 vac at each point then the heater is faulty.

Lou, Typically when clothes are turning into a ball in the dryer would be caused by overloading of the unit. As far as rubber burning smell, if the unit is overloaded you will want to check the belt to see if there is any damage to it. Both issues can be caused by overloading but a belt that is slipping could also cause this issue.