8.3.2.8 Current protection of compressor
Current protection of compressor
Judge 1: Check whether the input current of the power supply wire is more
than 8.5A (For 18-21K, it is 15A..For 27K(1x3) , it is 15A .For 27K(1x4), it is
18.5A , For 36K, it is 21.5A)
Check whether the refrigerant system is ok
Yes
Judge 2: Check whether the outdoor ambient temperature is too high
Yes
Stop the unit
Replace outdoor main board
No
No
Judge 3: Check whether the outdoor unit is bad ventilation
Yes
Make the outdoor unit ventilate well
No
Judge 4: Check whether the heat exchanger is dirty
Yes
Clean the heat exchanger
No
Judge 5: The refrigerant pipe is blocked
Yes
Let the refrigerant out, then use the high pressure
nitrogen or refrigerant to blow pipe, vacuumize and
charge the refrigerant again
Replace the electric control box
Trouble is solved
Yes
The problem is not
resolved.
To Next Page
Loading...
