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Whirlpool Dryer Overheating

LG5551XTW0

The part(s) or condition(s) listed below for the symptom Dryer overheating 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 overheating

Cause 1Air Flow Problem

If the vent is clogged or partially clogged, it will restrict the airflow through the dryer, substantially increasing the drying time. To ensure proper dryer performance, you should clean your dryer’s venting system at least once per year.

Cause 2Cycling Thermostat

The cycling thermostat cycles the heat on and off to maintain the proper air temperature. If the thermostat is defective, it may keep the heat on too long, causing the dryer to get too hot. However, this is rarely the case. Before replacing the cycling thermostat check all the more commonly defective parts. If you have determined that all of the other components are working properly, test the thermostat by using a multimeter to test it for continuity. If the thermostat does not have continuity, replace it.

Part Testing
Parts
Cycling Thermostat for your WhirlpoolDryer
Cycling Thermostat - Part # 2893 Mfg Part # WP3387134

Dryer cycling thermostat with internal bias heater, L155-25. If the dryer won't heat, it is unlikely that this thermostat is causing the issue, as the thermal fuse or thermal cut-out normally fail first.

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Cause 3Felt Seal

Most dryers have a felt seal at the front and rear of the drum to prevent heat from escaping the drum. If the seal is worn out or missing, the heat will not be drawn through the drum properly, causing the dryer to get too hot. Check the drum seal to ensure that it is creating a reliable seal around the drum. However, this is rarely the case. Before replacing the felt seal check all the more commonly defective parts. If you have determined that all of the other components are working properly, replace the felt seal.

Parts
Felt Seal for your WhirlpoolDryer
Felt Seal - Part # 2720 Mfg Part # 279264

Front felt bearing and felt seal kit with adhesive

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Cause 4Felt Seal

Most dryers have a felt seal at the front and rear of the drum to prevent heat from escaping the drum. If the seal is worn out or missing, the heat will not be drawn through the drum properly, causing the dryer to get too hot. Check the drum seal to ensure that it is creating a reliable seal around the drum. However, this is rarely the case. Before replacing the felt seal check all the more commonly defective parts. If you have determined that all of the other components are working properly, replace the felt seal.

Parts
Felt Seal for your WhirlpoolDryer
Felt Seal - Part # 3290 Mfg Part # 239087

Rear felt seal for many Whirlpool-Kenmore dryers with a lint screen that pulls out of the top panel.

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Cause 5Blower Wheel

The blower wheel works with the drive motor to draw air into the dryer drum. Clumps of lint, socks, and small articles of clothing can escape the lint filter and get caught in the blower wheel. In addition, the blower wheel sleeve can wear out, allowing the blower wheel to wobble on the motor shaft. If the blower wheel is obstructed or defective, the dryer may get too hot. To determine if the blower wheel is working properly, remove the dryer vent and assess the strength of the air flow. If the air flow is weak, check the blower wheel for obstructions. If no obstructions are present, try rotating the blower wheel by hand. If the blower wheel wobbles as it turns, replace it.

Parts
Blower Wheel for your WhirlpoolDryer
Blower Wheel - Part # 686172 Mfg Part # WP694089

Dryer blower wheel. Used on 29 inch Whirlpool built models with lint filter on top. To remove the blower wheel, unscrew the blower wheel clockwise off the motor shaft.

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