Service manual

20 505894

Section 3 Troubleshooting

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

17. EXCESSIVE CHATTERING OR VIBRATING NOISE IN DRYER

18. EXCESSIVE HUMMING OR WHISTLING NOISE IN DRYER

POSSIBLE CAUSE TO CORRECT

Inoperative idler spring. • Remove lower access panel. Set dryer to normal cycle and

allow it to heat to operating temperature. If the belt

vibrates as it rotates around the cylinder, the idler lever is

making the noise. Replace the idler spring. Refer to

Figure 26.

POSSIBLE CAUSE TO CORRECT

Inoperative blower housing. • If the abnormal operating noise is loudest at the vent exit,

the problem is originating from the blower housing.

Replace the current housing and cover. Refer to Figure 27.