Fujitsu Error Codes & Troubleshooting

Power cycle both units immediately.

Check sensor connections. Clean contacts.

Check electrical supply. Verify contactor.

Check motor power. Inspect bearings.

Professional service for leak detection.

Shut down. Check system components.

Clean sensor. Check wiring.

Check power supply connections.

Professional evacuation required immediately.

Allow cooling time. Check conditions.

Check control cable connections.

Replace filter with correct size.

Clear drain line immediately.

Check outdoor ice situation.

Set correct operating mode.

Refrigeration technician needed.

Check circuit breaker and wiring.

Manual defrost or COOL mode.

Replace batteries and check signal.

Professional inspection recommended.