Service manual

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(V2820)
Operation is normal if
one place of power
supply line phase is
replaced.
Fix the open phase. Requires
inspection of field power supply
section.
Reverse phase
Counter measure of the problem is
completed by phase replacement.
Replace outdoor unit PC board
A1P.
YES
YES
NO
NO
There is an open
phase at the power
supply terminal
section (X1M) of the
outdoor
unit.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.