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HomeRepair HelpWhirlpool A/C RepairWhirlpool Air conditioner circuit breaker keeps tripping Repair
Whirlpool Air conditioner circuit breaker keeps tripping
If your Whirlpool air conditioner trips breaker power as soon as it starts, treat it like an electrical short until proven otherwise. On most window units, the first suspect is the LCDI power cord, which is designed to trip when it detects a short in the cord or inside the air conditioner. If the cord checks out, the next likely causes are a shorted condenser fan motor, dual shaft fan motor, or blower motor. A burned-out motor may trip the breaker when power is applied, often with a burnt smell, and the windings can be checked with a multimeter. Less common causes include a damaged wire harness with loose or broken connections, or a shorted control board with burn marks or a burnt odor. Whether your Whirlpool window air conditioner trips circuit breaker, your AC breaker keeps tripping, or you suspect an air conditioner power cord problem, RepairClinic.com can help you match the failed part correctly. Enter your model number to find the exact replacement power cord, fan motor, blower motor, wire harness, or control board for your specific Whirlpool air conditioner.
01 - Whirlpool Air Conditioner Power Cord
Most window air conditioners have an LCDI circuit protector that will detect a short in the cord or a component in the unit. If the circuit breaker on the cord is damaged or any of the components in the unit are shorted the circuit breaker will trip. The circuit breaker on the cord is usually more sensitive and will trip before the main breaker.
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Common
02 - Whirlpool Air Conditioner Condenser Fan Motor
An air conditioner condenser fan motor is the component that spins both the condenser fan blade in the rear of the unit. If the fan motor is burned out or shorted it may trip the circuit breaker. You can use a multimeter to check if the motor windings are shorted. A shorted motor will usually have a burnt smell and will need to be replaced.
Common
03 - Whirlpool Air Conditioner Dual Shaft Fan Motor
An air conditioner dual shaft fan motor is the component that spins both the condenser fan blade in the rear of the unit and the fan blade that forces the cooled air out the front vent. If the fan motor is burned out or shorted it may trip the circuit breaker. You can use a multimeter to check if the motor windings are shorted. A shorted motor will usually have a burnt smell and will need to be replaced.
Common
04 - Whirlpool Air Conditioner Blower Motor
If the blower motor windings are shorted out the breaker will likely trip when power is applied to the motor. You can try disconnecting the motor from the unit to see if the breaker will still trip. You can use a multimeter to check if the motor windings are shorted. A shorted motor will usually have a burnt smell and will need to be replaced.
Common
05 - Whirlpool Air Conditioner Wire Harness
A wire harness sends power and low voltage signals between the electrical components and the control board. If a wire harness becomes damaged, it can short out causing the circuit breaker to trip. Check the appropriate wire harnesses for breaks or loose connections. A damaged wire harness will need to be replaced.
Less Common
06 - Whirlpool Air Conditioner Control Board
The control board regulates the power supply to all of the components of the air conditioner. If the control board shorts out it can trip the circuit breaker. A shorted control board will usually have burn marks or smell burnt and will need to be replaced.
Less Common
Frequently Asked Questions
Why does my Whirlpool air conditioner trip the breaker as soon as it turns on?
Can a bad fan motor make a Whirlpool AC breaker keep tripping?
What should I check before replacing the control board on a Whirlpool air conditioner that trips the circuit breaker?
Could damaged wiring cause my window air conditioner to trip the breaker?
How do I find the correct replacement part for my Whirlpool air conditioner?
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