OPERATION INDICATOR lamp blinks 2 times — Indoor coil or room temperature thermistor error

What does OPERATION INDICATOR 2 blinks mean?

The indoor unit's upper lamp blinks twice, indicating an issue with either the indoor coil thermistor or the room temperature thermistor. The thermistor might be short-circuited or have an open circuit.

• Indoor coil thermistor is short-circuited
• Indoor coil thermistor has an open circuit
• Room temperature thermistor is short-circuited
• Room temperature thermistor has an open circuit

Click steps to track your progress.

1. 1

   Refer to the characteristics of the indoor coil thermistor and room temperature thermistor (10-7) in the full manual.

2. 2

   Turn OFF the power supply to the unit at the circuit breaker, then turn it back ON after 30 seconds to reset.

3. 3

   If the issue persists, a qualified technician should inspect the thermistors and their connections.