How to Troubleshoot a Noisy Electrolux Dryer

ID: 207273

Description: [youtubevideo|QydJ25pGA2w]Use this guide to...

Steps:

1. Disconnect the power cord from the wall outlet to eliminate electrical hazards.
2. Pull the dryer forward far enough to reach the rear screws and panels.
3. Collect a Phillips screwdriver, 14 mm socket, 14 mm wrench, 1⁄4-inch hex key, long flat-blade screwdriver, needle-nose pliers, and a vacuum with a flexible hose.
4. Remove the two Phillips screws at the rear corners of the top panel.
5. Slide the panel backward about 25 mm and lift it off the cabinet.
6. Retrieve and set aside the hidden service manual if present under the top.
7. Remove the two screws securing the user interface to the front bulkhead.
8. Support the interface and unplug the multi-wire harness from the control board.
9. Photograph the harness location because identical plugs can fit into the wrong sockets.
10. Remove the two screws that hold the control board bracket to the bulkhead.
11. Lift the board and bracket away to clear the front opening.
12. Open the door and remove the two screws that fasten the front panel to the gray inner bulkhead.
13. Remove the two Phillips screws inside the lint filter housing; they are longer than the others.
14. Close the dryer door once the inner screws are out.
15. Take out one bottom screw from each side of the front panel.
16. Remove one top screw on each side while supporting the door assembly so it does not fall.
17. Tilt the panel forward, disconnect the door-switch plug, then lift the panel clear of the cabinet.
18. Use needle-nose pliers to release the cable tie that holds the door-switch harness to the lower right bulkhead hole.
19. Remove the two lower screws securing the bulkhead to the chassis.
20. Lift the bulkhead off its side tabs and set it aside for access to the drum.
21. Wear gloves to protect against sharp cabinet edges while reaching inside.
22. Pull the idler arm to the left to release belt tension and slip the belt off the motor pulley.
23. Lift the drum straight out of the cabinet using the belt as a carrying strap.
24. Spin the idler pulley by hand and listen for grinding, squealing, or wobble.
25. Replace the pulley assembly if it feels rough, cracked, or makes noise.
26. Rotate the plastic blower wheel; it should spin smoothly without rubbing or missing fins.
27. Vacuum out lint or foreign objects lodged inside the blower and surrounding ductwork.
28. Turn the motor shaft directly; a growling sound indicates failing bearings that require motor replacement.
29. Check each roller for flat spots, melted rubber, or excessive side play.
30. Inspect the roller shafts for scoring, rust, or dirt that could bind the bearings.
31. Look for frayed edges or missing ribs on the drive belt and replace if any damage is found.
32. Inspect the felt seals on the drum rim and the bulkhead for tears or metal separation.
33. If the drum or bulkhead is cracked, professional replacement is usually more economical than repair.
34. Vacuum all loose lint, screws, and foreign objects from the cabinet, blower path, and base.
35. If buildup remains in the lint duct, remove the two inner screws on the filter housing and clean the chute directly.
36. Insert a 1⁄4-inch hex key into the front of the roller shaft to hold it stationary.
37. Use a 14 mm socket or wrench on the rear nut to remove the roller and shaft from the bulkhead.
38. Install the new roller, spacer, and shaft, thread on the nut, and tighten until the wheel spins freely without side play.
39. For upgraded blue rollers, hold the shaft with a 14 mm socket instead of the hex key while tightening.
40. Pry the triangular retainer clip off the shaft with a long flat-blade screwdriver to release the wheel.
41. Clean or polish the shaft, replace the wheel if worn, and snap the clip back fully into its groove.
42. Remove the five screws securing the upper rear cover and rest the cover on top of the cabinet.
43. Remove all perimeter screws from the rear panel, leaving the two center screws for last to support the sheet.
44. Support the panel, take out the final two screws, and set the panel aside.
45. Replace any defective rear roller shafts using the same 1⁄4-inch hex key and 14 mm wrench technique shown earlier.
46. Position the rear panel, install the two center screws first, then reinstall all perimeter screws.
47. Secure the upper rear cover with its five screws, aligning the top screws after the rear screws are in place.
48. Set the drum on the rear rollers with the belt ribs facing inward in the original wear groove.
49. Pull the idler arm left, loop the belt around the motor pulley, then release the idler to tension the belt.
50. Rotate the drum by hand to verify the belt tracks correctly and spins the blower wheel without noise.
51. Hang the bulkhead on its four side tabs, rotating the drum slightly so the front rollers seat against the rim.
52. Install the two lower bulkhead screws and snap the door-switch harness clip back into its hole.
53. Plug the door-light switch into the same control board socket you noted earlier.
54. Hang the front panel on its bottom tabs, reconnect the door-switch plug, and swing the panel into position.
55. Install the two top and two bottom panel screws to secure the front to the chassis.
56. Open the door and reinstall the two long screws inside the lint filter housing.
57. Reconnect the user interface harness, seat the interface on its locating clips, and fasten its two screws.
58. Slide the top panel forward into place and secure the two rear screws.
59. Plug the dryer in, start a timed-dry cycle, and verify that operating noise is back to normal levels.
60. If abnormal noise remains after these checks, the motor or drum may be defective and professional service is recommended.