Midea M2OC-14HRDN1 Technical & Service Manual page 37

8.3.2.4 Temperature protection of compressor discharge
Discharge temperature protection of compressor
Yes
Check whether the compressor discharge temp. is more than 115°C ?
No
Check whether the wiring connection is right No
between compressor discharge temp. sensor and
Correct the wiring connection
PCB according to wiring diagrams
Check whether the refrigerant is leak
Yes
Yes
Judge: The discharge temp. sensor is broken
Stop leaking and add refrigerant
No
Method: Check whether the resistance of compressor discharge
Replace the compressor
temp. sensor is right refer to the Appendix 2 discharge temp. sensor
Yes
Replace outdoor main board