0Hb: Low Pressure Sensor Error - Carrier 38VMA Series Service Manual

k. 0Hb: Low Pressure Sensor Error
1. Error display:
ODU display: 0Hb
2. Applicable models:
38VMA***HDS5-1 (208/230V-3Ph-60Hz)
38VMA***HDS6-1 (460V-3Ph-60Hz)
3. Error definition:
Detect the voltage value of low pressure sensor for open or short circuit. If so, a fault will be reported.
4. Possible causes:
•
The low pressure error is caused by lack of refrigerant in the system
•
Damaged sensor
•
Damaged main board
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