How to Replace a Belt on a Washing Machine or Dryer

Before starting any repairs, first unplug the unit or shut off the power at the breaker box to avoid an electrical shock hazard. Also be sure to turn off the water supply (if replacing the belt on a washing machine).

Many washing machines and dryers use a belt to transfer power from the motor to the drum or agitator. If the belt breaks, the laundry wont turn. A worn or loose belt may present with a symptom of a burning rubber smell or the laundry not constantly turning.

To replace the drive belt, you will first need to get at the internal parts of the unit. That is done by opening the access panel or in most cases, by turning the unit onto its side to expose the belt on the bottom. Be sure to put down a blanket or cardboard to protect the side of your unit as flooring can scratch the surface. You may also want to enlist some help with moving the unit as they tend to be heavy.

Start your repair by removing the back cover and check to see if you can find the belt. If you do not see a belt, it may have broken.

To remove the old belt, first draw a picture of how the belt is positioned, then unscrew the clamps securing the pump coupling. You can find the pump coupling by looking for a rubber flexible part that connects the motor to the pump or drum. Removing the coupling allows you to slide the old belt out. If the belt still stays firm, try loosening the motor mounting bolts to relieve tension on the belt. If the belt is broken, check the user manual or search on the internet to get a drawing of how the belt should look.

Now install the new belt by referencing your drawing. You may have to turn the drum of the unit to help pull the belt around. Once in place, reattach the pump coupling and motor mount bolts. If done correctly, you should have little play in the belt. You can test this by pressing on the belt along its longest run. The belt should deflect no more than one inch when you press on it.

While you have it open, remove any dust using some compressed air. Now is also a good time to get rid of any squeaks. A quick spray with some WD40 or similar oil should help keep things running smooth. Be sure you do not get any oil onto the belt itself.

Next reattach the access panel and test the unit.