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Series 4 Models: “Wall” Type Top Class R32 Refrigerant AC
Remarks:
• Use a multimeter to test the DC voltage between 2 port and 3 port of outdoor unit. The red pin of multimeter
connects with 2 port while the black pin is for 3 port.
• When AC is normal running, the voltage will move alternately between -25V to 25V.
• If the outdoor unit has malfunction, the voltage will move alternately with positive value.
• While if the indoor unit has malfunction, the voltage will be 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 0 Ohm. Otherwise, the reactor must have malfunction.
