⚠
warning Carrier
Error Code LED blinks 3 times
Overheating detected — unit may be exposed to excessive temperatures.
? What Causes This
Operating in extreme temperature conditions, poor ventilation around the unit.
✓ How to Fix It
Move unit to cooler environment. Ensure proper air circulation and avoid overheated areas. If persists, contact service.
Source: page 5 of the official manual
From the manual