0H8: High Pressure Sensor Error - Carrier 38VMA Series Service Manual

j. 0H8: High Pressure Sensor Error
1. Error display:
ODU display: 0H8
2. Applicable models:
38VMA***HDS5-1 (208/230V-3Ph-60Hz)
38VMA***HDS6-1 (460V-3Ph-60Hz)
3. Error definition:
4. In the condition of unit operation or T4 > -10℃, when the detected HIGH PRESS < 0.3MPa lasts for 20 seconds, the high
pressure sensor fault is reported.
5. Possible causes:
•
The high pressure error is caused by lack of refrigerant in the system
•
Damaged sensor
•
Damaged main board
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