York At a Glance
What’s Wrong With Your York Air Conditioner?
Common Air Conditioner Problems and Troubleshooting
Why is the unit leaking?
Why is the temperature fluctuating?
Why isn’t the compressor working?
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York Air Conditioner Error Codes
Error Codes
LED 1 Flash Code (RED) | LED 2 Flash Code (GREEN) | Description |
---|---|---|
Operational Fault Codes | ||
ON | OFF | Control Failure |
1 | OFF | High-pressure switch fault (not inlockout yet) |
2 | OFF | System in high-pressure switchlockout |
4 | OFF | System in low-pressure switchlockout |
5 | OFF | Low Voltage (<19.2VAC) preventingfurther relay outputs |
6 | OFF | Low Voltage (<16 VAC) stoppedcurrent relay outputs |
9 | ON | High-pressure switch fault (with nocommunication for compressoroperation and where Y1 and Y2are not energized |
Sensor or Switch Fault Codes | ||
ON | 1 | Outdoor ambient temperaturesensor failure (short) |
ON | 2 | Outdoor ambient temperaturesensor failure (open) |
Wiring-Related Fault Codes | ||
1 | ON | Compressor contactor miswire |
2 | ON | Y2 present without Y1 |