Midea V6 Series

V6 VRF 50Hz
111
Part 6 - Diagnosis and Troubleshooting
2.17 H8: High pressure sensor error
Digital display output 2.17.1
Description 2.17.2
 High pressure sensor error.
 All units stop running.
 Error code is only displayed on the unit with the error.
Trigger / recover condition 2.17.3
 Trigger condition: Discharge pressure ≤ 0.3MPa.
 Recover condition: Discharge pressure > 0.3MPa.
 Reset method: Resume automatically.
Possible causes 2.17.4
 Outdoor unit stop valves are closed.
 Pressure sensor not connected properly or has malfunctioned.
 Insufficient refrigerant.
 Low pressure side blockage.
 Poor evaporator heat exchange.
 Main PCB damaged.