Midea DLCMB - Page 71

Check if the air flow system
of indoor and outdoor units
are obstructed
Clear up the air inlet and outlet or the heat
exchanger of indoor and outdoor units.
Yes
No
Yes
Yes
Turn off the power supply and tur n
back on 10 minutes later
Check if the compressor top
temperature is higher than
194°F(90°C)
No
Check if the refrigerant
system is normal.
Repair the refrigerant
system
Replace the outdoor control PCB
Yes
Check if all the connections,
especially the OLP connection
(Over Load Protector) sensor is good.
Correct the connection.No
Yes
Replace the OLP
No
Replace the outdoor control PCB.Yes
No
Measure the resistance
betwwen the two OLP ports.
Is it zero?
DLCM(R/H)B: Service Manual