Panasonic Urban Multi MX1R Series, Service Manual, Page: 236 / 643

PACD011001C2 Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting Urban Multi “MX1, ME1 Series” Using R-22 215
8.3 Display “Under Host Computer Integrate Control” Blinks (Repeats Double
Blink)
Remote Controller
Display “under host computer integrated control” (Repeats double blink)
Supposed Causes
„
Central control address (group No.) is not set for indoor unit.
„
Improper address setting
„
Improper wiring of transmission wiring
Troubleshooting
(VF082)
Is the switch
for setting each address set
correctly?
Is
the transmission
wiring disconnected or wired
incorrectly?
Fix the wiring correctly.
Replace the PC board of the unified
ON/OFF controller.
Set by remote controller the central
control address for all indoor units
connected to the central control line.
YES
YES
NO
Set the switch for setting each address
correctly and simultaneously reset the
power supply for all optional controllers
for centralised control.
NO
NO
YES
Is the central
control address (group No.)
set for the indoor
unit?
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.