C2
Heil
Compressor Overcurrent / Locked Rotor
Heil outdoor unit LED flashes C2; compressor runs briefly then trips
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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
Locked rotor compressor, Incorrect line voltage, Shorted compressor windings, Oversized or failed hard-start kit
How to Fix / Troubleshooting
Safety first: Disconnect power and do not repeatedly reset breakers; this can damage the compressor further.
- Step 1 – Check supply voltage: Have a qualified person verify correct line voltage at the contactor.
- Step 2 – Inspect wiring and contactor: Look for burnt contacts or loose lugs that can cause voltage drop.
- Step 3 – Evaluate hard-start kit: If installed, temporarily remove or replace with the correct Heil-approved kit.
- Step 4 – Technician diagnosis: A pro must test compressor windings and determine if replacement is required.
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Repair Difficulty
Professional Required
5/5
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