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Sharp AH-A07BE Service Manual page 26

Split system room air conditioners
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AH-A07BE-C/09BE-C
AH-A07BE/09BE/12BE
AY-A07BE-C/09BE-C
AY-A07BE/09BE/12BE
The machine does not function
with remote controller
Push butt "OI" on on the wireless
remote controller.
Is transmitting
indicator of the remote
controller active ?
Does beep sound
from the indoor unit ?
Using a tester,
measure the voltage
between terminals
of resistor R11
on the PWB ass'y.
Push the button "OI".
NO
YES
YES
NO
Are batteries of the
wireless remote controller
proper ?
YES
Replace the wireless
remote controller.
Is indicator lamp of
indoor unit proper ?
NO
Replace the
PWB with a
new one.
When the signal is
received, does the voltage
change ?
YES
Replace the PWB with a new
one.
26
NO
Replace the batteries
with new ones.
YES
PWB is normal.
Inspect the outdoor unit.
NO
Replace the photo
detector unit with a new
one.

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