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Kenmore Dryer Won't Stop

417.94052500

The part(s) or condition(s) listed below for the symptom Dryer won't stop 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 stop

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 2Gas Valve Solenoid

Gas dryers have two or more gas valve solenoid coils. The gas valve solenoids open the gas valve ports to allow gas to flow into the burner assembly. If a solenoid fails, the burner may run intermittently. If the burner keeps shutting off, the dryer won’t heat properly and may not stop. To determine if one or more of the gas valve solenoids has failed, check the igniter. If the igniter glows and goes out but does not ignite the gas, the gas valve solenoid is defective. If one or more of the gas valve coils are defective, we recommend that you replace them as a set.

Part Testing
Parts
Gas Valve Solenoid for your KenmoreDryer
Gas Valve Solenoid - Part # 3449 Mfg Part # 5303931775

Dryer gas valve solenoid coil kit. The kit includes both 2 and 3 wire coils. If the dryer does not heat or heats intermittently the gas valve coils may be defective.

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Install Help
Cause 3Lint Filter

The lint filter might be clogged. Dryer sheets and fabric softener can leave a residue on the lint filter, reducing the air flow. If the lint filter is clogged, clean it.

Parts
Lint Filter for your KenmoreDryer
Lint Filter - Part # 484 Mfg Part # 131450300

Lint filter assembly

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Cause 4Cycling Thermostat

The cycling thermostat cycles the heat on and off to regulate the air temperature. If the cycling thermostat is defective, the dryer will not heat. 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 for continuity. If the thermostat does not have continuity, replace it.

Part Testing
Parts
Cycling Thermostat for your KenmoreDryer
Cycling Thermostat - Part # 642067 Mfg Part # 5308015399

Dryer cycling thermostat, L100- 40F

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Cause 5Thermistor

If the dryer won’t stop, the thermistor might be defective. Some dryers have a thermistor. The control board uses the thermistor to monitor the dryer temperature and cycle the heat on and off. If the thermistor is defective, it may turn off the heat too early, considerably lengthening the drying time. However, this is rarely the case.

Parts
Thermistor for your KenmoreDryer
Thermistor - Part # 1156925 Mfg Part # 134587700

Dryer thermistor. This thermistor should read approximately 50,000 (50K) Ohms of resistance at 77 degrees Fahrenheit. *Note that it is not in the heating circuit so it likely will not be the cause of a dryer heating problem. It can however effect cycle times or cause a fault if defective.

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