Service manual

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Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
(V2830)
Is
indoor -
outdoor and outdoor -
outdoor unit transmission
wiring normal?
Replace indoor unit PC board.
Wiring check operation may
not have been carried out
successfully.
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
∗ The unit will not run for up to
12 minutes.
YES
NO
YES
NO
NO
YES
Is
the check
operation carried out?
Is
indoor-outdoor
and outdoor-outdoor unit
transmission wiring
normal?
Open stop valve.
YES
NO
Are
the stop valves
openned?