Daikin Overcurrent / Short Circuit in Furnace

Daikin furnace frequently trips the household circuit breaker.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Shorted blower motor windings, Shorted inducer motor, Pinched line-voltage wiring against metal cabinet, Faulty Daikin control board causing overcurrent

How to Fix / Troubleshooting

Safety: Do not repeatedly reset a tripping breaker. This is a fire hazard. Turn off the breaker and leave it off until the problem is found.

Steps to check (visual only for homeowners):

  • Inspect wiring: With power off, remove furnace panels and look for burnt wires, melted insulation, or wires pinched by sheet metal.
  • Smell test: Smell near the blower and inducer motors for burnt odor, which may indicate motor failure.

Electrical testing for shorts and overcurrent should be performed by a licensed technician, who can replace the faulty Daikin motor or control board.

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Repair Difficulty

Professional Required 5/5

Required Part

Daikin ECM Blower Motor / Draft Inducer / Control Board
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