Left/Upper lamp blinks 6 times — Outdoor thermistor abnormality

What does Left/Upper lamp 6-time blink mean?

This indicates a fault with the thermistors in the outdoor unit. These sensors are crucial for temperature monitoring during compressor operation.

• Outdoor unit thermistor fault (short or open circuit)
• Wiring issue with outdoor thermistors

Click steps to track your progress.

1. 1

   Refer to the outdoor unit service manual for checks of outdoor thermistors.

2. 2

   Inspect the thermistor wiring for damage or disconnections.

3. 3

   Professional service is likely required to replace faulty outdoor thermistors.