Service manual

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(V3074)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Resistance
is normal when
measured after
disconnecting the thermistor
R4T or R12T from the
indoor unit PC
board. (1.8kΩ
to 800kΩ)
Replace outdoor unit PC board
(A1P).
Connect the connector and turn
on again.
NO
NO
Replace the thermistor R4T or
R12T.
YES
YES
Connector
is connected to
X30A of outdoor unit PC
board (A1P).
Confirm which thermistor is
abnormal using outdoor unit
"monitor mode".
(Refer to P226~227)