Daikin FUQ71CVEB Installation Manual page 38

Discharge piping pressure sensor
JA
system malfunction (Outdoor unit)
Suction piping pressure sensor system
JC
malfunction (Outdoor unit)
Inverter system malfunction
L1
(Outdoor unit)
Reactor thermistor malfunction
L3
(Outdoor unit)
Overheated heat-radiating fin
L4
(Outdoor unit)
Instantaneous overcurrent
L5
(Outdoor unit)
L8 Electric thermal (Outdoor unit)
L9 Stall prevention (Outdoor unit)
Transmission malfunction between
LC inverter and outdoor control unit
(Outdoor unit)
P1
Open-phase (Outdoor unit)
DCL sensor system malfunction
P3
(Outdoor unit)
Heat-radiating fin thermistor
P4
malfunction (Outdoor unit)
DC output current sensor system
P6
malfunction (Outdoor unit)
PJ Capacity setting failure (Outdoor unit)
Suction piping temperature abnormal
U0
(Outdoor unit)
U1 Reverse phase (Outdoor unit)
Power voltage malfunction (Outdoor
U2
unit)
U4 Transmission error (between indoor and
UF outdoor units)
Transmission error (between indoor and
U5
remote controller units)
Transmission error between main and
U8 sub remote controllers (sub remote
controller malfunction)
UA Field setting error
Transmission error (between indoor unit
UE
and centralized remote controller)
UC
Remote controller address setting error
Accessory equipment transmission
UJ
error
37
Inverter cooling failure.
The compressor engines and turbines may be
experiencing a ground fault or short circuit.
The compressor engines and turbines may be
overloaded and disconnected.
The compressor may be locked.
Abnormal stop is applied depending on the
model or condition.
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.
The refrigerant may be insufficient.
Abnormal stop is applied depending on the
model or condition.
Reverse two phase of L1, L2 and L3 leads.
The inverter open-phase or main circuit
condenser may be malfunctioning.
Abnormal stop is applied depending on the
model or condition.
Wiring error between indoor and outdoor unit. Or
Indoor and outdoor Printed Circuit Board failure.
Transmission between indoor unit and remote
controller is not performed properly.
System setting error of the simultaneous on/
off multi-split type.
Abnormal stop is applied depending on the
model or condition.
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