English
27
CAUTION
•
Refer to “2. Items to be checked at time of delivery to customer” on page 4 upon completion of the test oper-
ation and make sure that all the items are checked.
•
If the customer’s interior work is not finished on completion of the test operation, tell the customer not to
operate the air conditioner.
Substances generated from paints and adhesives used for the interior work may contaminate the product
if the unit is operated.
When delivering the product to the customer after the test operation is completed, check that the control
box cover, the air filter and the suction grille are mounted. In addition, explain to the customer regarding
the state (ON/OFF) of the power supply breaker.
LC
Transmission malfunction between
inverter and outdoor control unit
(Outdoor unit)
P1
Open-phase (Outdoor unit)
P3
DCL sensor system malfunction
(Outdoor unit)
P4
Heat-radiating fin thermistor
malfunction (Outdoor unit)
Abnormal stop is applied depending on the
model or condition.
P6
DC output current sensor system
malfunction (Outdoor unit)
PJ
Capacity setting failure (Outdoor unit)
Capacity setting adapter or capacity data
error, or disconnection of the capacity
setting adapter, failure to connect the
adapter, or the capacity is not set to the
data-retention IC.
U0
Suction pipe temperature abnormal
(Outdoor unit)
The refrigerant may be insufficient.
Abnormal stop is applied depending on the
model or condition.
U1
Reverse phase (Outdoor unit)
Reverse two phase of L1, L2 and L3 leads.
U2
Power voltage malfunction (Outdoor
unit)
The inverter open-phase or main circuit
condenser may be malfunctioning.
Abnormal stop is applied depending on the
model or condition.
U4
UF
Transmission error (between indoor
and outdoor units)
Wiring error between indoor and outdoor unit.
Or Indoor and outdoor printed circuit board
failure.
U5
Transmission error (between indoor
and remote controller units)
Transmission between indoor unit and
remote controller is not performed properly.
U8
Transmission error between main
and sub remote controllers (sub
remote controller malfunction)
UA
Field setting error
System setting error of the simultaneous
on/off multi-split type.
UE
Transmission error (between indoor
unit and centralized remote
controller)
UC
Remote controller address setting
error
UJ
Accessory equipment transmission
error
Abnormal stop is applied depending on the
model or condition.
To test operation Contractors
4PEN468968-1C.book Page 27 Friday, March 24, 2017 1:30 PM
