COMFORT-AIRE A-DVC24SF-1 Service Manual page 33

Service Manual - DVC 09/12/18/24 SF Series
Remark:
Use a multimeter to test the DC voltage
between terminal L2 and terminal 3(S) of
outdoor unit. The red pin of multimeter
connects with 2 port while the black pin is
for terminal 3(S).
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.
If the indoor unit has malfunction, the
voltage will be a steady value.
Remark:
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 is
malfunctioning.
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