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HomeRepair HelpNordyne Central A/C RepairNordyne Central air conditioner circuit breaker keeps tripping Repair
Nordyne Central air conditioner circuit breaker keeps tripping
If your Nordyne central air conditioner keeps tripping the circuit breaker, stop resetting it repeatedly. The most likely cause is a shorted condenser fan motor in the outdoor condensing unit, followed by a shorted outdoor fan motor. A seized motor or windings shorted to ground can trip the breaker or fuses. Next, check the furnace or air handler blower motor and blower wheel, which may be seized, electrically shorted, or showing signs of overheating. Less common causes include a shorted compressor, a faulty control board, or a damaged wire harness with broken insulation or loose connections. This problem may also appear as central air tripping breaker, an AC condenser keeps tripping breaker, or an air conditioner circuit breaker that keeps tripping. Turn off power at the disconnect box and circuit breaker before inspecting components. Testing or replacing parts in a 240V outdoor condensing unit or furnace requires electrical training and may be beyond DIY scope. Compressor replacement involves the sealed system and refrigerant, so it must be handled by an EPA 608-certified HVAC technician. Enter your Nordyne model number to find the exact replacement part for your specific central air conditioner.
01 - Nordyne Central Air Conditioner Condenser Fan Motor
If the outdoor condensing unit's breaker or fuses keep tripping the condenser fan motor may be to blame. To determine if the condenser fan motor is shorted, use a multimeter to test the motor windings for a short to ground. If the condenser fan motor will not turn freely or the windings are shorted, replace the condenser fan motor.
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Common
02 - Nordyne Central Air Conditioner Fan Motor
If the outdoor condensing unit's breaker or fuses keep tripping the condenser fan motor may be to blame. To determine if the outdoor fan motor is shorted, use a multimeter to test the motor windings for a short to ground. If the outdoor fan motor will not turn freely or the windings are shorted, it will need to be replaced.
Common
03 - Nordyne Central Air Conditioner Blower Motor
Since the furnace or air handler's blower motor is the component that circulates the air through the home's venting, a defective blower motor may result in the circuit breaker tripping. You can try disconnecting the motor from the control board and see if the breaker still trips. You can also use a multimeter to test the blower motor for an electrical short, or see if there are any burnt smells coming from the motor. You can also try turning the blower wheel by hand. If the wheel does not turn freely, it's likely the motor bearings have seized. If the motor doesn't turn freely or is shorted the blower motor will need to b...
Common
04 - Nordyne Central Air Conditioner Compressor
The compressor is located in the outdoor condensing unit and gets power through a service panel box next to the unit. If the compressor is shorted the fuses in the service panel box or the main breaker box may trip. You can test the compressor for shorts by using a multimeter. If the compressor windings are shorted the compressor itself or the whole unit will need to be replaced.
Less Common
05 - Nordyne Central Air Conditioner Control Board
The control board regulates the power supply to all of the components of the furnace or air handler. 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
06 - Nordyne Central 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
Frequently Asked Questions
Why does my Nordyne central air conditioner keep tripping the breaker?
How do I test a Nordyne condenser fan motor when the breaker keeps tripping?
Can a Nordyne blower motor cause the air conditioner circuit breaker to trip?
What should I check before replacing a Nordyne compressor or control board?
How do I find the correct Nordyne replacement part for my central air conditioner?
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