Panasonic Urban Multi MX1R Series, Service Manual, Page: 234 / 643

PACD011001C2 Troubleshooting (OP: Unified ON/OFF Controller)
Troubleshooting Urban Multi “MX1, ME1 Series” Using R-22 213
8.2 Display “Under Host Computer Integrate Control” Blinks (Repeats Single
Blink)
Remote Controller
Display “under host computer integrated control” (Repeats single blink)
Supposed Causes
„
Address duplication of central remote controller
„
Improper combination of optional controllers for centralised control
„
Connection of more than one master controller
„
Malfunction of transmission between optional controllers for centralised control
„
Defect of PC board of optional controllers for centralised control
Troubleshooting
(VF080)
Is
the reset switch
of all optional controllers for
centralised control set to
"normal"?
Is
transmission wiring
disconnected or wired
incorrectly?
Correct the setting of the unified
ON / OFF controller's switch for
setting each address and reset
the power supply of the unified
ON / OFF controller.
Refer to failure diagnosis for
central remote controller or
schedule timer.
NO
YES
YES
NO
NO
Fix the wiring correctly.
Turn on power supply for all
optional controllers for
centralised control.
Set reset switch to "normal".
NO
NO
YES
YES
YES
Is
the power supply
turned on for all optional
controllers for centralised
control?
Reset power supply
simultaneously for all optional
controllers for centralised control.
NO
YES
Has a once
connected optional
controller for centralised control
been disconnected or its
address changed?
Is
the central remote
controller or schedule timer
displaying a
malfunction?
Is
a central remote
controller or schedule timer
connected?
NO
YES
NO
Is
the setting of the
unified ON / OFF controller's
switch for setting each
address
duplicated?
Are
two or more unified
ON / OFF controllers
connected?
YES
2A
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.