HVACopediaKeepRite air conditioner error codes
28 codes with causes and test steps, plus 1 settings tables.
| Code | Meaning | Severity |
|---|---|---|
| 1 | Comfort Alert 1 - long run time | Medium |
| 2 | Comfort Alert 2 - system pressure trip | High |
| 3 | Comfort Alert 3 - short cycling | Medium |
| 4 | Comfort Alert 4 - locked rotor | High |
| 5 | Comfort Alert 5 - open circuit | High |
| 6 | Comfort Alert 6 - open start circuit | High |
| 7 | Comfort Alert 7 - open run circuit | High |
| 9 | Comfort Alert 9 - low control voltage | Medium |
| 16 | Lost communication with wall control | Medium |
| 25 | Model plug missing or invalid | High |
| 31 | High pressure switch open | High |
| 32 | Low pressure switch open | High |
| 45 | Outdoor control board failure | High |
| 46 | Brown-out (low voltage) | Medium |
| 47 | No 230 V at the unit | High |
| 53 | Outdoor air temperature sensor fault | Medium |
| 55 | Outdoor coil sensor fault | Medium |
| 56 | Air and coil sensors disagree | Medium |
| 71 | Low stage thermal cutout | High |
| 72 | Compressor thermal cutout (two-stage: high stage) | High |
| 73 | Contactor stuck closed | High |
| 74 | No 230 V at compressor | High |
| 81 | Low stage thermal lockout | High |
| 82 | Thermal lockout (two-stage: high stage) | High |
| 83 | Low pressure lockout | High |
| 84 | High pressure lockout | High |
| Red TRIP LED | Comfort Alert TRIP - Y call but compressor not running | High |
| TRIP + ALERT flashing together | Comfort Alert - control voltage too low to operate | Medium |
Settings and specs
Outdoor unit clearances
Clearances · KeepRite C4A3/CXA6 AC
| Location | Minimum |
|---|---|
| Service end | 24 in. (610 mm) |
| Above unit | 48 in. (1219 mm) |
| One side | 6 in. (152 mm) |
| Other sides | 12 in. (305 mm) |
| Between units | 24 in. (610 mm); 18 in. (457 mm) with no overhang within 12 ft |
| Roof mount height above roof | 6 in. (152 mm) |
| Shrubs/fences from coil | 18 in. (457 mm) |
- Keep roof run-off and snow from falling on the unit.
- Unit must be level within 2 degrees.
Source: KeepRite/ICP C4A3/H4A3/T4A3/CXA6 Installation Instructions 421 01 5103 05, Clearances / Unit Support p.2, Maintenance p.12
Models covered
*CA624*CA636*CA648*CA660*CA924*CA936*CA948*CA960*SA5*SA6C4A3CXA6
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.