RUN light ON, 1-time flash — Power transistor error

What does RUN light ON 1-time flash mean?

The RUN light is on and flashes once, indicating an error with the power transistor. This component is crucial for controlling power to the compressor and other parts of the outdoor unit.

• Broken power transistor
• Broken compressor wire
• Defective outdoor unit boards
• Shortcircuit on power transistor

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power source and wait for at least 30 seconds before turning it back on.

2. 2

   Check the outdoor unit for any obvious signs of electrical damage or burnt smells.

3. 3

   Ensure the outdoor unit's power supply is stable and not experiencing fluctuations.

4. 4

   If the issue reoccurs, switch off the unit's power and contact your dealer for professional assistance.

5. 5

   Verify that the outdoor unit's ventilation is not blocked, ensuring proper cooling of internal components.