Service Manual

82
Operation start
Check the outdoor unit
LED indicator.
Refer to 11-6.
"Check of power supply".
,QGRRUXQLW
serial signal
error
Refer to 11-6.
"How to
check
miswiring and
serial signal
error".
&22/RU
HEAT
operation only
Refer to 11-6.
"Check of
R.V. coil".
:KHQFRROLQJ
room is not
cool.
Refer to 11-6.
"How to check
inverter/
compressor".
:KHQFRROLQJKHDW
exchanger of
non-operating indoor
unit frosts.
:KHQKHDWLQJQRQ
operating indoor unit
gets warm.
Refer to 11-6.
"Check of LEV".
:KHQKHDWLQJ
room does not get
warm.
Refer to 11-6.
"How to check
inverter/compressor".
&KHFNPLVSLSLQJ
shortage of capacity.
:KHQFRROLQJ
dew drops in the
non-operating
indoor unit.
Check of
miss-piping.
Refer to 11-4.
"Troubleshooting check table".
Both LED1 and
LED2 are OFF.
Both LED1 and
LED2 are lighting.
LED1 or LED2
has blinked.
11-3. INSTRUCTION OF TROUBLESHOOTING
• Check the indoor unit with referring to the indoor unit service manual, and confirm that there is any problem in the indoor
unit.
Then, check the outdoor unit with referring to this page.
OBH702F