Pioneer WAE012AMFI15RL Service Manual page 46

Remark:
Use a multimeter to test the DC
voltage between L2 (or N on 115 V
Models) port and S port of outdoor
unit. The red pin of multimeter
connects with L2 (or N on 115 V
Models) port while the black pin is for
S port.
When AC is normally running, the
voltage will move alternately between
-50V to 50V.
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.
Remark:
Use a multimeter to test the
resistance of the reactor (one that is
not connected with a capacitor.
The normal value should be around
zero ohm. Otherwise, the reactor
must have malfunction and need to
be replaced.
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