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HomeRepair HelpColeman Central A/C RepairColeman Central air conditioner circuit breaker keeps tripping Repair
Coleman Central air conditioner circuit breaker keeps tripping
When your Coleman central air conditioner keeps tripping the breaker, the condenser fan motor is the most likely cause. A shorted winding or seized motor can make the AC breaker trip as soon as the outdoor condensing unit starts. The outdoor fan motor is the next likely problem, followed by the furnace or air handler blower motor, especially if its bearings are seized, it smells burnt, or its windings are shorted. Less common causes include a shorted compressor, a failed control board, or damaged wiring in the wire harness. This can cause central air tripping breaker problems, an AC condenser that keeps tripping the breaker, or an outside AC unit that will not stay running. Turn off power at the disconnect box and circuit breaker before any inspection. Testing or replacing these components involves 240V line voltage and is beyond basic DIY scope; have a qualified HVAC technician or electrician handle electrical testing and compressor work. Compressor repairs may also involve the sealed refrigerant system and require EPA 608 certification. Enter your Coleman model number to find the exact replacement part for your specific central air conditioner.
01 - Coleman 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 - Coleman 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 - Coleman 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 - Coleman 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 - Coleman 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 - Coleman 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 Coleman central air conditioner keep tripping the breaker?
How do I test a condenser fan motor when the AC breaker keeps tripping?
Can a blower motor cause the central air conditioner breaker to trip?
Could the compressor or control board be causing my Coleman AC breaker to trip?
How do I find the correct replacement part for my Coleman central air conditioner?
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