Panasonic CU-8ME1XPK - Refrigerant System Not Set, Incompatible Wiring;Piping

Troubleshooting PACD011001C2
190 Troubleshooting Urban Multi “MX1, ME1 Series” Using R-22
3.35 Refrigerant System not set, Incompatible Wiring/Piping
Remote Controller
Display
UF
UFUF
UF
Supposed Causes
„
Improper connection of transmission wiring between indoor-outdoor unit and outdoor-outdoor unit
„
Failure to execute wiring check operation
„
Defect of indoor unit PC board
Troubleshooting
Wiring check may not be successful if carried out after the outdoor unit has been off for more than 12
hours, or if it is not carried out after running all connected indoor units in the fan mode for at least an hour.
(VF061)
Is indoor - outdoor
and outdoor - outdoor unit
transmission wiring
normal?
Replace indoor unit PC board.
Wiring check may not have been
carried out successfully.
After fixing incorrect wiring, push
and hold the RESET button on the
outdoor unit PC board for 5
seconds.
YES
NO
YES
NO
NO
YES
Wiring
check operation
carried out?
Is indoor
-outdoor and outdoor-outdoor
unit transmission
wiring normal?
∗ The unit will not run for up to 12
minutes.
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.