A dryer that is making a squeaking, squealing noise or a metal-on-metal sound, is not only a disturbing nuisance, it can also indicate a problem with one or more parts inside the dryer. Although the dryer may continue to work while making a noise, in time the part will break and the dryer will no longer function. Consider a dryer that is making noise a warning sign that your dryer needs maintenance.
WARNING! Before attempting to work on any appliance, make sure that all power (electricity) and utilities (water and gas) have been turned off and/or disconnected on the appliance. Read this before you start any repair.
Drum Support Rollers or Wheels
The drum support rollers support the dryer drum as it turns. Over time, these rollers can become warped and wear out from use forcing the drum to rotate on an elongated circle which causes noise.
Depending on your dryer’s model, the drum support rollers could be located on the inner front or back of the dryer cabinet. Locate the rollers and give them a turn with your hand. If you hear a squeak or they are difficult to turn, then that might be cause of your problem. Sometimes, using a lubricant to lubricate them until they are moving smoothly can help. However, the rollers could be worn and misshaped from use. Replace worn rollers with new dryer drum support rollers.
If you hear a high-pitched squealing, it could be caused by the dryer idler pulley. This part, located on the bottom of your dryer, keeps tension on the dryer belt which wraps around the motor pulley and drum. Over time, the bearing inside the pulley can wear out causing it to squeak or even lock up. Replace the idler pulley with a new one.
Dryer Drum Glides or Slides
While replacing these parts, check the dryer drum glides located on the front lip of your dryer drum (there will be two – one on each side). The dryer drum glides or slides provide a nice smooth surface for your dryer to ride on and over time, they wear down from use and can start to cause noise, like a scraping sound.
Some dryer models are equipped with a front drum bearing which, like the glides, provide a nice smooth surface for the dryer drum when it spins. This part too can become worn out and you will need to replace it with a new drum bearing.
Another source of noise could be the rear bearing assembly, which are several parts attached to the drum and the back of the dryer. These parts support the drum. Check the parts for wear and replace them.
Sometimes a vane or fin from the dryer’s blower wheel can break off causing noise. The blower wheel helps circulate hot air throughout your dryer. If it’s not working properly, you will have hot, wet laundry, or it will take hours for your laundry to dry. Check the blower wheel to see if it damaged and replace.
While your dryer is disassembled, it’s a good idea to check your dryer’s belt for cracks and wear. Over time, the belt can get stretched out. Save yourself some time and effort by not having to take apart your dryer apart again.
Clean the Lint From Inside the Dryer
Once you have your dryer’s cabinet disassembled, this is a good time to clean out any excess lint from inside the dryer before assembling it together again. Lint inside the dryer can lead to a dryer fire and can also block and clog parts inside the dryer, preventing them from operating effectively.
Keeping the inside of the dryer free from lint will prevent fires and allow your dryer to run more efficiently.