Indoor Unit: Pc Board Defect - Panasonic Urban Multi MX1R Series Service Manual

PACD011001C2
3.2 Indoor Unit:
A1
Remote Controller
Display
„ Defect of indoor unit PC board
Supposed Causes
Troubleshooting
Troubleshooting UM Combination "MA1R Series" Using R-407C
PC Board Defect
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Turn power supply OFF, then
power ON again.
Does the system return to
normal?
NO
YES
Troubleshooting
External factor other than
malfunction (for example, noise
etc.).
Replace the indoor unit PC
board.
(V0816)
499