Sharp AH-A07BE - TROUBLESHOOTING GUIDE

AH-A07BE-C/09BE-C
AH-A07BE/09BE/12BE
AY-A07BE-C/09BE-C
AY-A07BE/09BE/12BE
25
TROUBLESHOOTING GUIDE OF 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 anodes of D1
and D2 on PWB ass'y.
Is the measured value
approx. 17.0 Vac ?
Replace the PWB with a new
one.
Is the 3.0A fuse down ?
Replace the fuse and varistor
with new ones.
Replace the ftransformer with
a new one.