Operation LED blinks 3 times and Timer LED blinks 2 times (0C) — Discharge thermistor error.

What does Operation 3 Times / Timer 0C mean?

The thermistor measuring the compressor's discharge temperature is detecting an abnormal reading.

• The discharge thermistor is open (disconnected) or shorted (faulty connection).
• The controller PCB is defective.

Click steps to track your progress.

1. 1

   Power off the unit at the circuit breaker.

2. 2

   Visually inspect the discharge thermistor for any visible damage or loose connections.

3. 3

   If the error persists, a technician should check the thermistor's resistance or the controller PCB.