15
L5
Instantaneous overcurrent (outdoor)
Possible GROUND fault or short cir
cuit in the compressor
motor.
L8
Electr
ic thermal (outdoor)
Possible electrical overload in the compressor or cut line
in the compressor motor.
L9
Stall prevention (outdoor)
Compressor possibly locked.
LC
Transmission malfunction between the outdoor control
units’ inverters (outdoor)
P1 Open-phase (outdoor)
P3 PC board temperature sensor malfunction (outdoor)
P4
Heat-radiating fin temperature sensor malfunction
(outdoor)
PJ
Type set improper (outdoor unit)
Capacity data is wrongly preset. Or there is nothing pro-
grammed in the data hold IC.
U0 Suction pipe temperature abnormal
U2
Power source voltage malfunction
Includes the defect in K1M.
U3 The check operation has not performed.
U4
UF
Transmission error (indoor unit – outdoor unit)
Miswiring between indoor and outdoor units or malfunc-
tion of the PC board mounted on the indoor and the out-
door units.
If UF is shown, the wire between the indoor and outdoor
units is not properly wired. Therefore, immediately dis-
connect the power supply and correct the wire. (The
compressor and the fan mounted on the outdoor unit
may start operation independent of the remote controller
operation.) The power is not supplied to outdoor unit.
U9 Same transmission for in / outdoor unit is fault.
UA
Miss setting for multi system
Setting is wrong for selector switch of multi-system. (see
switch SS2 on the main unit’s PC board)
To Next Page
Loading...
