What to do if Vertiv Liebert CRV CCD10 Accessories show a high pressure alarm?
- CChristopher ByrdJul 31, 2025
If your Vertiv Accessories unit displays a high pressure alarm, there are a couple of potential causes to investigate. First, check for sufficient condenser air flow. Clean any obstructions from the coil surface or near the air inlet, and verify the fan speed regulation function of the control board. Another possibility is that the condenser fan isn't running. In this case, inspect the cable connections between the control board and outdoor unit terminals to ensure they are secure. Also, check the outdoor unit cable connection and confirm that the condenser pressure sensor is working normally.