ErrorCodePro · Appliance Error CodesFrigidaire Window air conditioner with heater Error Codes: Full List & Meanings
Every Frigidaire window air conditioner with heater error code in the Frigidaire window air conditioner with heater error-code chart, as published by Sears PartsDirect, with its meaning. Codes vary by model, so confirm in your owner's manual. Support: Frigidaire support (owner.frigidaire.com).
Codes by system
All Frigidaire window air conditioner with heater error codes
Codes marked "Reset only" or "Service" have no separate page because the manufacturer publishes no owner fix beyond a reset or a service call.
| Code | Meaning | System | Owner action |
|---|---|---|---|
| ES | Evaporator temperature sensor failure. | Heating | Service |
| AS | Ambient temperature sensor failure. | Heating | Service |
| HS | Air outlet temperature sensor failure. | Heating | Service |
| OS | Outdoor temperature sensor failure. | Heating | Service |
| CS | Condenser temperature sensor failure. | Heating | Service |
Symptoms
Sources
- Sears PartsDirect: Frigidaire window air conditioner with heater error-code chart (third-party copy of manufacturer service data)
Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Frigidaire.