Compressor Discharged Temperature Protection - Midea MDV-V80W/DN1 Technical Manual

R410A All DC Inverter Mini VRF
7.12 P4: Compressor discharged temperature protection (for all models)
When the discharged temperature of the compressor is higher than 115° C, the unit will stop running.
When the discharged temperature of the compressor is lower than 90° C , the unit resumes normal
operation automatically.
Discharged temperature of the compressor
Check whether the discharged temperature of the compressor is higher
Check whether the compressor discharged
temperature sensor connects with PCB
correctly according to the wiring diagram.
Whether the discharged temperature sensor is
Check whether resistance of compressor discharged
temperature sensor is correct or not .
92
LED P4
displays
than 115° C.
NO
YES
damaged or not.
YES
Replace outdoor PCB
NO
Connect correctly again.
Check refrigerant leaks or not.
Stop leaking and then confirm the
refrigerant volume again.
NO
Replace compressor discharged
MCAC-VTSM-2014-10
YES
YES
temperature sensor.
Troubleshooting