Installation manual

24 English
L9
Stall prevention (outdoor unit)
Compressor possibly locked.
LC Transmission malfunction between the outdoor control units’ inverters (outdoor unit)
P1 Open-phase (outdoor unit)
P3 P-board temperature sensor malfunction (outdoor unit)
P4 Heat-radiating fin temperature sensor malfunction (outdoor unit)
PJ
Type set improper (outdoor unit)
Capacity data is wrongly proset. Or there is nothing programmed in the data hold IC.
U0 Suction pipe temperature abnormal
U1
Reverse phase
Reverse two phase of the L1,L2and L3 leads.
U2
Power source voltage malfunction (outdoor unit)
Includes the defect in 52C.
U4
UF
Transmission error (indoor unit – outdoor unit)
Wrong wiring between indoor and outdoor units or malfunction of the PC board
mounted on the indoor and the outdoor units.
U5
Transmission error (indoor unit – remote controller)
Transmission is improper between the indoor unit and the remote controller.
U8
Malfunction in transmission between main and sub remote controls.
(Malfunction in sub remote controller.)
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)
UC Central control address overlapping
01_EN_3P184443-6.fm Page 24 Monday, July 3, 2006 12:04 PM