Red 2 Flashes, Green 3 Flashes (Single System) — Indoor Pipe Sensor Failure

What does Red 2 Flashes, Green 3 Flashes mean?

The red LED flashes two times and the green LED flashes three times on the indoor unit. This indicates an issue with the indoor pipe sensor, which monitors the temperature of the refrigerant pipe.

• Loose or disconnected indoor pipe sensor.
• Damaged pipe sensor wiring or the sensor itself.
• Problem with the indoor unit's main control board.

Click steps to track your progress.

1. 1

   Turn off the electrical power to the indoor unit at the circuit breaker.

2. 2

   Check the pipe sensor for any disconnections or physical damage (this may require panel removal by a professional).

3. 3

   Restore power and observe if the error code clears.

4. 4

   If the error persists, it likely indicates a faulty sensor or PCB, requiring a technician.