Alpha Overcurrent on Furnace Circuit

The furnace occasionally trips the household circuit breaker during startup.

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.

Possible Causes

Blower motor drawing excessive current, Shorted wiring in the furnace junction box, Failing draft inducer motor, Incorrect breaker size for the Alpha furnace

How to Fix / Troubleshooting

Safety: Do not repeatedly reset a tripping breaker. This can cause fire hazards.

Visual inspection: With power off, inspect the wiring inside the furnace junction box and around motors for burns or loose connections.
Isolate the cause: Note whether the breaker trips when the inducer starts, when the blower starts, or randomly. Share this information with a technician.

Motor current draw and wiring integrity should be tested by a qualified technician. Do not upsize the breaker.

Repair Difficulty

Hard 4/5

Required Part

Alpha ECM Blower Motor

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