31
DIAGNOSIS AND SOLUTION (CONT)
Fig. 30 – Test the DC Voltage
Use a multimeter to test the DC voltage between L2 port and S port of the outdoor unit. The red pin of the multimeter connects with the L2
port while the black pin is for the S port. When air conditioner is running normal, the voltage moves alternately between −50V to 50V. If the
outdoor unit has a malfunction, the voltage will move alternately with positive value. If the indoor unit has malfunction, the voltage will have
a certain value.
Fig. 31 – Test the Reactor Resistance
Use a multimeter to test the resistance of the reactor which does not connect with the capacitor. The normal value should be around zero (0)
ohm. Otherwise, the reactor has a malfunction and needs to be replaced.
Содержание 38MAQB09-1
Страница 17: ...17 REFRIGERATION CYCLE DIAGRAMS Fig 12 Refrigerant Cycle Diagram Heat Pumps...
Страница 39: ...39 DIAGNOSIS AND SOLUTION CONT Fig 34 P U Fig 35 P V...
Страница 40: ...40 DIAGNOSIS AND SOLUTION CONT Fig 36 P W Fig 37 N U...
Страница 41: ...41 DIAGNOSIS AND SOLUTION CONT Fig 38 N V Fig 39 N W...
