Midea DLCMB - Page 63

Is the wiring between
the high pressure switch and
the main control board is
connected well
M
e
th
od
:
.
,
i
f
,
Method: Disconnect the plug.
Measure the resistance of
the
high pressure protector, if
the protector is normal the
value is 0,
Yes
Yes
Connect it well No
Replace high pressure protector No
Is the high
pressure protector
broken?
Check whether the outdoor
ambient temperature is
higher than 50
No
Stop the unit Yes
Check if the outdoor unit
venlaon is good
Yes
Check whether the heat
exchanger is dirty
No
Clean the heat exchanger Yes
Check whether the refrigerant
system is ok
Replace outdoor main
board
No
High pressure protecon
Check if the outdoor fan runs
properly
Refer to the Fan Speed is Out of
Control soluon. Determine
the cause and solve.
No
Yes
NO
Ensure the outdoor unit
is well venlated
DLCM(R/H)B: Service Manual