If you’re looking for help fixing your Napoleon air conditioner, look no further! Our comprehensive Napoleon air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.

CODE: Unit will not operate,
PROBLEM: Power disconnected or loose connection.
FIX: Check power supply to unit. Check voltage at contactor.

CODE: Unit will not operate,
PROBLEM: Blown fuse / breaker tripped.
FIX: Replace fuses/reset breaker.

CODE: Unit will not operate,
PROBLEM: Thermostat out of calibration is set too high.
FIX: Reset.

CODE: Unit will not operate,
PROBLEM: Contactor defective.
FIX: Check for 24VAC at contactor coil – replace if open.

CODE: Unit will not operate,
PROBLEM: Transformer defective.
FIX: Check wiring – replace transformer.

CODE: Unit will not operate,
PROBLEM: High pressure control open (if provided).
FIX: Reset – see high pressure connection.

CODE: Outdoor fan on; Compressor off.
PROBLEM: Run or start capacitor defective.
FIX: Replace.

CODE: Outdoor fan on; Compressor off.
PROBLEM: Start relay defective.
FIX: Replace.

CODE: Outdoor fan on; Compressor off.
PROBLEM: Loose wire.
FIX: Check for correct voltage at compressor – check and tighten all connections.

CODE: Outdoor fan on; Compressor off.
PROBLEM: Compressor stuck, grounded or open motor winding, open internal overload.
FIX: Wait at least 2 hours for overload to reset; if still open, replace the compressor.

CODE: Too little cooling.
PROBLEM: Low voltage condition.
FIX: Add start kit components.

CODE: Too little cooling.
PROBLEM: Improperly sized unit.
FIX: Recalculate load.

napoleon air conditioner codes

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