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LG Dryer Won't Start

DLE0442W

The part(s) or condition(s) listed below for the symptom Dryer won't start are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Dryer won't start

Cause 1Thermal Fuse

The thermal fuse is a safety device designed to protect the dryer from overheating. The fuse is located on the blower housing or at the dryer’s heat source such as the heating element on electric dryers or at the burner on gas models. The fuse should be closed for continuity meaning it has a continuous electrical path through it when good. If overheated the fuse will have no continuity meaning the electrical path is broken and the fuse has blown. A multimeter can be used to test it for continuity. Be aware that a blown thermal fuse is an indication of a restricted exhaust vent from the dryer to the outside. Always check the dryer venting when replacing a blown thermal fuse.

Part Testing
Parts
Thermal Fuse for your LGDryer
Thermal Fuse - Part # 1268366 Mfg Part # 6931EL3003D

Dryer thermal fuse. If the dryer overheats, the thermal fuse blows to cut off power to the dryer. If the thermal fuse has blown, the dryer won't start. The thermal fuse cannot be reset—if the fuse has blown, replace it. Thermal fuses often blow due to a clogged vent.

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Cause 2Door Switch

The door switch activates when the dryer door is closed. On most dryers, the door switch makes an audible clicking sound when it activates. To determine if the door switch is working, try starting your dryer and then listen for the “click.” If the door switch makes a clicking sound, it is probably not defective. If you don’t hear a click, use a multimeter to use the door switch for continuity. If the switch does not have continuity, replace it.

Part Testing
Parts
Door Switch for your LGDryer
Door Switch - Part # 1268253 Mfg Part # 6601EL3001A

Switch assembly,safety

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Cause 3Drive Motor

The drive motor turns the drum and the blower wheel to exhaust the air. Before replacing the motor, first check the thermal fuse, start switch, and door switch. If all of these parts are working properly, but the motor is making a humming noise, remove the belt from the motor and check the blower wheel for obstructions. If the blower wheel is clear of obstructions, the dryer motor might be at fault. If you suspect the motor is defective, replace it.

Parts
Drive Motor for your LGDryer
Drive Motor - Part # 1330330 Mfg Part # 4681EL1008A

Dryer drum drive motor with pulley. If the dryer does not start the motor could be bad. Before replacing the motor the door switch and thermal fuse should be tested to determine if they are defective.

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Cause 4Drive Belt

On most dryers, when the dryer belt breaks, the motor will still run, but the drum will not turn. However, some dryers have a switch that shuts off power to the dryer if the drive belt is broken. Check the dryer belt to determine if it is broken. If the belt is broken, replace it.

Parts
Drive Belt for your LGDryer
Drive Belt - Part # 4115028 Mfg Part # 4400EL2001F

Dryer drum drive belt. 1/4 inch wide with 4 ribs and 3 grooves. The drive belt is a very long, slender belt that wraps all the way around the dryer drum, around a tension pulley, and then around the drive motor pulley. If the drum will not turn when the dryer is turned on the belt is likely broken.

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Cause 5Belt Switch

On most dryers, when the dryer belt breaks, the motor will still run, but the drum won’t turn. However, some dryers have a switch that shuts off power to the dryer if the drive belt is broken. If this switch fails, it could shut off power to the dryer even when the belt is not broken. First, start the dryer and then listen for a humming noise. If the dryer makes a humming noise when you try to start it, this indicates that the belt switch is not defective. Next, search for your model number to determine if your dryer has a belt switch. If your dryer has a belt switch, use a multimeter to test the switch for continuity. If the switch does not have continuity, replace it.

Parts
Belt Switch for your LGDryer
Belt Switch - Part # 2667100 Mfg Part # EBF61734701

Micro switch assembly. Switch is two terminal Normally Closed.

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Cause 6Incoming Power Problem

If you have a gas dryer, unplug the dryer from the wall and plug something else into the outlet to determine if the outlet is working. If you have an electric dryer, check the home circuit breaker or fuses. If the circuit breaker or fuses are working, use a multimeter to test the outlet.

Cause 7Main Control Board

The main control board might be defective. However, this is rarely the case. Before replacing the main control board, check all of the more commonly defective parts.If you have determined that all of the other components are working properly, replace the main control board. (The control board cannot be easily tested, but you can try to inspect it for signs of burning or a shorted-out component.)

Parts
Main Control Board for your LGDryer
Main Control Board - Part # 1359858 Mfg Part # 6871EL1004C

Main Power Control Board

Cause 8Main Control Board

The main control board might be defective. However, this is rarely the case. Before replacing the main control board, check all of the more commonly defective parts.If you have determined that all of the other components are working properly, replace the main control board. (The control board cannot be easily tested, but you can try to inspect it for signs of burning or a shorted-out component.)

Parts
Main Control Board for your LGDryer
Main Control Board - Part # 1528225 Mfg Part # EBR33640911

Main power control board assembly

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