OPERATION INDICATOR lamp blinks 6 times — Outdoor thermistors error

What does OPERATION INDICATOR 6 blinks mean?

The indoor unit's upper lamp blinks six times, indicating that the outdoor thermistors (temperature sensors) are either short-circuited or have an open circuit during compressor operation.

• Outdoor thermistor is short-circuited
• Outdoor thermistor has an open circuit

Click steps to track your progress.

1. 1

   Refer to 'Check of outdoor thermistor' in the outdoor unit service manual.

2. 2

   Turn OFF the power supply to the unit at the circuit breaker, check for any visible damage to the outdoor thermistor wires, then restore power.

3. 3

   Contact a qualified technician to inspect and potentially replace the outdoor thermistors.