Midea M4OA-36HFN1-Q User Manual

Service manual DM15-01.01.11-01en
66 Multi DC inverter R410A. Outdoor unit
11.3.2.9 High temperature protection of condenser (ODU P5)
When outdoor pipe temperature is more than 65°C, the unit will stop, and unit runs again when outdoor pipe
temperature less than 52°C.
Hightemperatureprotectionof
condenser
Check whether the
condenser temperature is
Higher than 65°C
Yes
Check whether the
resistance of condenser
temp. sensor is normal
refertotheAppendix 1
Replacethetemperaturesensor
No
No
Check whether the outdoor
ambient temperature is
higher than 50℃
No
StoptheunitYes
Checkiftheoutdoorunit
ventilationisgood
Yes
Make the outdoor unit ventilate well
Check whether the heat
exchanger is dirty
No
Clean the heat exchangerYes
Check whether the refrigerant
system is ok
Replace outdoor main
board
No
Refrigerantisnotenoughaddthe
refrigerant
No
Checkiftheoutdoorfanruns
properly
pleaserefertothesolutionoffan
speedhasbeenoutofcontrol
malfunction.Findoutthecauseand
haveitsolved.
No
Yes
No
CorrecttheconnectionNo
Yes
Checktheconnection
betweentemperature
sensorandPCB.
Yes

Midea M4OA-36HFN1-Q Specifications

General

Brand	Midea
Model	M4OA-36HFN1-Q
Category	Air Conditioner
Language	English