SiE-05C Troubleshooting
Troubleshooting PLUS Series 315
3.19 Negative Phase, Open Phase
Remote Controller
Display
UU
UU
11
11
Supposed Causes Power supply negative phase
Power supply open phase
Defect of outdoor PC board A1P
Troubleshooting
YES
YES
Fix the open phase. Requires
inspection of field power
supply section.
Negative phase
Disposal of the problem is
completed by phase
replacement.
Replace outdoor unit PC
board A1P.
There
is an open phase
at the power supply terminal
section (TeS1) of the
outdoor unit.
Operation
is normal if one place
of power supply line phase
is replaced.
NO
NO
(VF153)
SI-05C.BOOK Page 315 Monday, November 6, 2000 4:13 PM
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