V6R VRF 50Hz
138
Midea
V
6R
Series S
er
vice M
anual
2.26
PP: Compressor discharge insufficient superheat protection
Digital display output
Description
Compressor discharge insufficient superheat protection.
All units stop running.
Error code is displayed on the unit with the error.
Trigger / recover condition
Trigger condition:
Refer to Part 3 6.6 Wet Compression Protection Control.
Recover condition: Refer to Part 3 6.6 Wet Compression Protection Control.
Reset method: Resume automatically.
Possible causes
Temperature sensor not connected properly or has malfunction.
High pressure sensor not connected properly or has malfunction.
Excess refrigerant.
Some valves of ODU can’t be fully closed.
Some valves of IDU or MS can’t be fully closed.
Outdoor main PCB damaged.
