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error Frigidaire
Error Code AS
Sensor failure — a sensor in the unit has failed and the system cannot operate properly.
? What Causes This
Internal sensor malfunction or disconnection.
✓ How to Fix It
- Note the fault code AS on the display.
- Contact an authorized Frigidaire service center for assistance.
- Do not attempt to repair the sensor yourself.
Source: page 2 of the official manual
From the manual
This error code appears in:
Frigidaire FFRE053WAE Window-Mounted Room Air Conditioner