F15 / Outdoor LED1 flashes 20 times — Outdoor terminal block temperature protection

What does F15 mean?

The outdoor terminal block, where electrical connections are made, has become too hot, triggering a safety shutdown to prevent electrical hazards.

• Loose wiring connections at the terminal block
• Overload on the circuit

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power switch or circuit breaker immediately.

2. 2

   Allow the unit to cool down for at least 15-20 minutes.

3. 3

   If the issue recurs, contact a qualified electrician or technician, as this could indicate loose wiring or an electrical fault.