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Dryer not heating

01 - Washer/Dryer Combo Thermal 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 continui...ty. 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.
Required Part
Washer/Dryer Combo Thermal Fuse
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Most Common Solution
02 - Washer/Dryer Combo Drive Motor
Most dryer drive motors have a centrifugal switch that energizes a start winding when the motor is first started and closes a heat cycle contact to allow the heat source to work. If the motor's centrifugal switch is faulty, either the motor won’t run or the motor will run but the dryer won’t heat. Since most centrifugal switches are not sold separately, the entire motor will need to be replaced if the switch is defective.
Required Part
Washer/Dryer Combo Drive Motor
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Most Common Solution
03 - Washer/Dryer Combo Gas 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 gas valve solenoid fails, the dryer won’t heat. 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.
Required Part
Washer/Dryer Combo Gas Valve Solenoid
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Most Common Solution
04 - Incorrect cycle settings
Ensure the dryer is set to the appropriate heat setting. The setting may have been inadvertently changed to a non-heat option.
05 - Washer/Dryer Combo Thermistor
A dryer thermistor monitors the temperature of the burner or heater housing and will shut off the heat once a sufficient temperature is reached. If the thermistor is faulty, the dryer may not heat at all.
Required Part
Washer/Dryer Combo Thermistor
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Common Solution
06 - Washer/Dryer Combo Igniter
The igniter uses heat to ignite the gas in the burner assembly. If the igniter is not working, the gas will not ignite, preventing the dryer from heating. To determine if the igniter has burned out, use a multimeter to test the igniter for continuity. If the igniter does not have continuity, replace it.
Required Part
Washer/Dryer Combo Igniter
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Common Solution