14
AH-M098E
AU-M188E
TROUBLESHOOTING OF A CONTROL CIRCUIT
measure the secondary voltage
of transformer.
YES
NO
YES
NO
The machine does not function
at all with remote controller and
switches on the indoor unit.
Using a tester, measure the
voltage between terminal " 1 "
and " 2 " of connector CN2 of
Indoor's P.W.B. ass'y.
Is the measured value
approx. 16.0 Vac ?
Replace the Indoor P.W.B. ass'y
with a new one.
Is the 2.5A fuse down ?
Replace the fuse and varistor
with new ones.
Replace the transformer with
a new one.
Å@
