RUN light Keep flashing, TIMER light 1-time flash - Signal transmission error

What does RUN light Keep flashing, TIMER light 1-time flash mean?

There is a communication problem between the indoor and outdoor units. This prevents them from coordinating operation.

• Defective power source.
• Broken signal wire.
• Defective indoor or outdoor unit control boards.

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main circuit breaker and wait for 5 minutes before restarting it.

2. 2

   Check for any obvious physical damage to the visible interconnecting cables between the indoor and outdoor units.

3. 3

   If the error persists, contact a qualified service technician to diagnose the communication line or control boards.