Midea MV6-i252WV2GN1-E, Service Manual

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V6-i VRF 50/60Hz
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2.23 PP: Compressor discharge insufficient superheat protection
Digital display output 2.23.1
Description 2.23.2

Compressor discharge insufficient superheat protection.

All units stop running.

Error code is only displayed on the unit with the error.
Trigger / recover condition 2.23.3

Trigger condition: Discharge gas superheat is ≤ 0
o
C for 20 minutes or ≤ 5
o
C for 60 minutes.

Recover condition: Discharge gas superheat go back to normal value.

Reset method: Resume automatically.
Possible causes 2.23.4

Temperature sensor not connected properly or has malfunctioned.

Poor temperature sensor heat insulation.

Excess refrigerant.

Discharge pressure too high.

Main PCB damaged.