mrcool.com Page 45
Remarks:
•
Use a multimeter to test the DC voltage between 2 port(or S or L2 port) and 3 port(or N or S port) of the
outdoor unit. The red pin of the multimeter connects with 2 ports (or S or L2 port) while the black pin is for
3 port (or N or S port).
•
When AC is normal running, the voltage is moving alternately as positive values and negative values
•
If the outdoor unit has malfunction, the voltage has always been the positive value.
•
While if the indoor unit has malfunction, the voltage has always been a certain value.
• Use a multimeter to test the resistance of the reactor which does not connect with capacitor.
•
The normal value should be around zero ohm. Otherwise, the reactor must have malfunction.
Note: The picture and the value are only for reference, actual condition and specific value may vary.
S and N
or
L2 and S
or
2 and 3
****Disclaimer****
The error codes and descriptions are for reference only. If your system displays any of
these codes contact a qualified technician to investigate the matter further.
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