(6)
Outdoor fan does not run.
• Check resistance of fan
motor winding.
• Check fan motor capacitor
OK
• Check continuity between
terminals on compressor
motor magnetic contactor.
• Check fan rotation.
Rotate fan gently once or
twice by hand.
• Check fan casing
for foreign matter
on the inside.
Remove foreign
matter or repair.
Repair or replace.
Fan cannot
be rotated.
• Fan motor burnout
or foreign matter
in bearing.
(8)
Compressor does not run.
• Check compressor motor capacitor.
• Check resistance of compressor motor winding.
• Check compressor motor overload relay.
OK
OK
OK
NG
Replace magnetic
contactor.
• Check continuity between terminals R-U, and
then S-V on the magnetic contactor.
(7)
Outdoor fan speed is not switched from High to Low even when the outdoor
temperature falls below 25.5
°
C.
• Check thermostat (23S).
• Check coil resistance of
auxiliary relay.
(1Y)
25
