Thermal Fuse Open Error — Overheating protection triggered

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A thermal fuse has opened, which is a safety mechanism designed to protect the unit from overheating. This indicates that a component has reached an unsafe temperature, causing a system shutdown.

• Overheating of a specific component (e.g., motor, compressor) due to excessive load or malfunction.
• A faulty thermal fuse that opened prematurely.
• Insufficient airflow around components leading to heat buildup.

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1. 1

   Turn off the air conditioner immediately and unplug it (if possible and safe).

2. 2

   Check for any obstructions around the indoor or outdoor units that could impede airflow.

3. 3

   Allow the unit to cool down completely for at least 30 minutes.

4. 4

   Restore power and try to restart the unit. If the error reoccurs, a technician should inspect for overheating components or a faulty fuse.