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

Manual page 5 — Carrier error LED blinks 3 times

Affected Carrier Products