York Air Handler: AHX/MX
Re: Lockout Codes / Fault Codes
The "lockout" can be Reset by cycling power to the air handler.
LOCKOUT CODES:
| Flashes | Description |
| OFF | No power to control |
| Pulse | Normal Operation |
| Rapid | Test mode |
| ON | Control failure |
| 1 | Limit switch currently open |
| 2 | Multiple limit openings - No call for heat |
| 3 | Multiple limit openings - call for heat |
| 4 | Long duration limit trip |
| 5 | Multiple long duration limit trips |
| 6 | Motor Failure |
| 7 | "O" energized with "W" |
| 9 | Control recovered from internal event |