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Dryer Trips Breaker
The part(s) or condition(s) listed below for the symptom Dryer trips breaker 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.
The Circuit Breaker is Weak
Over time, circuit breakers can weaken. If the circuit breaker is weak, it may trip too often, even if the amperage draw is below the limit. If you have already checked all of the potentially defective dryer components, consider having an electrician replace the circuit breaker.
Heating Element
Sometimes, if the heating element fails, it shorts out against the heater housing, causing the dryer to trip the circuit breaker. To determine if the heating element is at fault, use a multimeter to test each terminal for continuity to the case. If the heating element has continuity to the case, it is shorted out. If the heating element is shorted out, replace it.
Heating Element Assembly
Sometimes, if the heating element fails, it shorts out against the heater housing, causing the dryer to trip the circuit breaker. To determine if the heating element assembly is shorted out, use a multimeter to test each terminal for continuity to the case. If the heating element assembly has continuity to the case, it is shorted out. If the heating element assembly is shorted out, replace it.
Drive Motor
Sometimes, when the drive motor fails, it shorts out internally, causing the dryer to trip the circuit breaker. To determine if the drive motor is at fault, use a multimeter to test it for continuity. If the motor windings are shorted out, replace the drive motor.
Terminal Block
Electric dryer power cords attach to the dryer at a terminal block. If any of the wires on the terminal block are loose, they can arc and destroy part of the block. If this happens, one of the wires can short against the body of the dryer, causing the dryer to trip the breaker. This is not a common occurrence.


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jeff.