Frigidaire Error Codes
Every Frigidaire error code we have catalogued, with what it means on site — 39 codes in total. In R-Pro, tap any code to get the meaning, likely causes and inspection steps, even with no signal in the plant room.
Common Frigidaire codes
- AS — Ambient temperature sensor malfunction
- CS — Condenser temperature sensor malfunction
- ES — Evaporator temperature sensor malfunction
- HS — Air outlet temperature sensor malfunction
- OS — Outdoor temperature sensor malfunction
- F1 — Indoor ambient temp sensor short/open
- F2 — Indoor pipe temp sensor short/open
- F3 — Outdoor ambient temp sensor short/open
| Code | What it means |
|---|---|
| AS | Ambient temperature sensor malfunction |
| CS | Condenser temperature sensor malfunction |
| ES | Evaporator temperature sensor malfunction |
| HS | Air outlet temperature sensor malfunction |
| OS | Outdoor temperature sensor malfunction |
| F1 | Indoor ambient temp sensor short/open |
| F2 | Indoor pipe temp sensor short/open |
| F3 | Outdoor ambient temp sensor short/open |
| F4 | Outdoor pipe temp sensor short/open |
| F5 | Compressor discharge sensor short/open |
| F6 | Overload limit (frequency fall) |
| F8 | Overcurrent limit (frequency fall) |
| F9 | High discharge temp limit (frequency fall) |
| FH | Antifreeze limit (frequency fall) |
| E2 | Antifreeze protection mode |
| E3 | Blocked coil / freezing / low refrigerant |
| E4 | Compressor discharge high temp protection |
| E5 | AC overcurrent protection |
| E6 | Indoor/outdoor communication error |
| E8 | Extremely high temperature protection |
| EE | EEPROM memory chip malfunction |
| C5 | PCB jumper cap malfunction |
| U7 | 4-way reversing valve abnormality |
| H1 | Defrosting mode (normal operation) |
| H3 | Compressor overloading protection |
| H5 | IPM / inverter module protection |
| H6 | No feedback from indoor fan motor |
| HC | PFC protection |
| L3 | Outdoor DC fan motor fault |
| L9 | Excessive refrigerant accumulated |
| LP | Indoor & outdoor unit mismatch |
| P1 | Bottom tray water full / rated freq test |
| P2 | Maximum frequency testing mode |
| P3 | Medium frequency testing mode |
| PO | Minimum frequency testing mode |
| PH | High P-N voltage protection |
| PL | Low P-N voltage protection |
| LU | Power module frequency limit |
| EU | Module temperature frequency limit |
Official Frigidaire source / manual ↗
Frequently asked
What does Frigidaire error code AS mean?
Frigidaire error code AS means: Ambient temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code CS mean?
Frigidaire error code CS means: Condenser temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code ES mean?
Frigidaire error code ES means: Evaporator temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code HS mean?
Frigidaire error code HS means: Air outlet temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code OS mean?
Frigidaire error code OS means: Outdoor temperature sensor malfunction. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code F1 mean?
Frigidaire error code F1 means: Indoor ambient temp sensor short/open. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code F2 mean?
Frigidaire error code F2 means: Indoor pipe temp sensor short/open. In R-Pro you also get the likely causes and the inspection steps — offline.
What does Frigidaire error code F3 mean?
Frigidaire error code F3 means: Outdoor ambient temp sensor short/open. In R-Pro you also get the likely causes and the inspection steps — offline.
Look up any error code — offline — in R-Pro.
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