SiEBE18-526
Troubleshooting for Outdoor Unit
Troubleshooting
313
Troubleshooting
(Q0439)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
The
transmission
wiring between the
outdoor unit PCB
inverter unit is
disconnected.
YES
Fix the disconnection and turn on
again.
Connect transmission wiring and
turn on again.
NO
YES
The voltage
between red and
white of X1A on the inverter
unit is the power supply
voltage.
Check the noise filter (Z1F) for
disconnection, and check the
power supply wiring or the inverter
PCB.
Replace inverter PCB.
When the LC malfunction occur
again, replace control PCB.
NO
NO
YES
NO
Are the
connectors
between the main
PC board (A1P) and
inverter PCB
(A2P) connected
securely?
The
microcomputer
monitor (green) on
the inverter PCB
is blinking.
Defect of outdoor main PCB or
defect of inverter PCB.
YES
Содержание Super Multi Plus D-Series
Страница 1: ...SiEBE18 526 D Series Service Manual Applied Models zSuper Multi Plus Heat Pump...
Страница 12: ...SiEBE18 526 List of Functions 1 Part 1 List of Functions 1 List of Functions 2...
Страница 63: ...Refrigerant Flow for Each Operation Mode SiEBE18 526 52 Refrigerant Circuit...
Страница 167: ...Instruction SiEBE18 526 156 System Configuration FDXS25 35C CDXS50 60C 3 6 8 9 10 7 1 4 5 2 Names of parts Indoor Unit...
Страница 249: ...Instruction SiEBE18 526 238 System Configuration...
Страница 395: ...2 5 DS1 3 DS1 4 BP Unit ON OFF Connect BP unit Not connect BP unit Do not change the factory setting Not Used...