F34 / Outdoor LED1 flashes 37 times — Outdoor coil protection

What does F34 mean?

The outdoor unit's coil has activated a protection, possibly due to extreme temperatures (e.g., frosting in winter or overheating in summer) or other operational issues.

• Environmental conditions
• Dirty outdoor coil
• sensor issue

Click steps to track your progress.

1. 1

   Ensure the outdoor unit is clear of any obstructions like leaves, snow, or debris.

2. 2

   Clean the outdoor coils if they appear dirty or blocked.

3. 3

   Turn off the unit at the main power switch, wait for 10 minutes, then restart.

4. 4

   If the problem persists, contact a qualified technician.