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HomeRepair HelpPhilco Central A/C RepairPhilco Central air conditioner circuit breaker keeps tripping Repair
Philco Central air conditioner circuit breaker keeps tripping
If your Philco central air conditioner circuit breaker keeps tripping, the most likely cause is a shorted condenser fan motor in the outdoor condensing unit. A motor with shorted windings or seized bearings can trip the breaker or fuses, so inspect the condenser fan motor and test it for a short to ground only if you are qualified to work around 240V equipment. The next most likely cause is the furnace or air handler blower motor. A seized blower wheel, shorted motor, or burnt motor can cause the AC breaker to trip. Less commonly, the compressor may be shorted, or a control board or damaged wire harness may be creating an electrical short. This central air tripping breaker problem involves line voltage, so turn off power at the disconnect box and circuit breaker, and contact a qualified HVAC technician if you are not trained to test these components. Compressor or other sealed-system repairs also require an EPA 608-certified technician. Enter your Philco model number to find the exact replacement condenser fan motor, blower motor, compressor, control board, or wire harness for your unit.
01 - Philco 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 - Philco 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 - Philco 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 - Philco 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 - Philco 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 - Philco 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 Philco central air conditioner keep tripping the breaker?
What should I check when my AC condenser keeps tripping the breaker?
Can a blower motor cause the central air conditioner breaker to trip?
Could the compressor or control board be causing my Philco AC breaker to trip?
How do I find the correct replacement part for a Philco central air conditioner?
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