Midea DLCMRAH36DAK - Page 82

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Current protection of compressor
Current protection of compressor
Judge 1: Check whether the input
current of the power supply wire
is more than 12.5A(18K) (For
27K, it is 17.For 30K, it is 18.5.For
36K, it is 23A)
Judge 1: Check whether the input
current of the power supply wire
is more than 12.5A(18K) (For
27K, it is 17.For 30K, it is 18.5.For
36K, it is 23A)
Yes
Replace the electric control box
Replace the electric control box
Check whether the
refrigerant system
is ok
Check whether the
refrigerant system
is ok
Judge 2: Check whether the
outdoor ambient temperature
is higher than 50℃
Judge 2: Check whether the
outdoor ambient temperature
is higher than 50℃
No
Stop the unit
Stop the unitYes
Judge 3: Check whether the
outdoor unit is bad ventilation
Judge 3: Check whether the
outdoor unit is bad ventilation
No
Make the outdoor unit ventilate well
Make the outdoor unit ventilate wellYes
Judge 5: The refrigerant pipe is
blocked
Judge 5: The refrigerant pipe is
blocked
No
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize
and charge the refrigerant again
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize
and charge the refrigerant again
Yes
Judge 4: Check whether the
heat exchanger is dirty
Judge 4: Check whether the
heat exchanger is dirty
No
Clean the heat exchanger
Clean the heat exchangerYes
Yes
Replace outdoor main
board,and check whether the
system can run normally
Replace outdoor main
board,and check whether the
system can run normally
No
Yes
Trouble is solved
Trouble is solved
Replace outdoor main board
Replace outdoor main boardNo