Midea M2OE-14HFN1-Q Service Manual page 50

Super dc inverter multi type
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Service manual
11.3.2.8 Temperature protection of compressor discharge (ODU P4)
Temperature protection of 
compressor discharge
Check whether the 
compressor discharge temp. is 
more than 115°C ?
No
Check
whether
connection is right between
compressor discharge temp.
sensor and PCB according
to wiring diagrams?
Yes
Measure the resistance value
compressor discharge
of
temp. sensor.
If the value is
not normal
is normal refer to 
the Appendix 2?
Yes
Replace outdoor main PCB
No
Replace high pressure valve assy
50
Check whether the 
Yes
refrigerant is leak
No
the
No
No
Replace the compressor discharge temp. sensor
Yes
Correct the wiring connection
Multi DC inverter R410A. Outdoor unit
DM16-01.01.11-01en
Stop leaking and add refrigerant

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