45
Thermistor
fault
Protective
device for
compressor is
activated
I
ndoor thermistor is either open
or damaged.
Outdoor thermistor is either
open or damaged.
Protective device for compressor
No. 1 is activated.
I
ndoor coil temp. sensor (E1)
I
ndoor coil temp. sensor (E2)
I
ndoor coil temp. sensor (E3)
I
ndoor suction air (room) temp. sensor (TA)
I
ndoor discharge air temp. sensor (BL)
Outdoor No. 1 coil liquid temp. sensor (C1)
Outdoor air temp. sensor (TO)
Current is not detected when comp. is ON.
EEPROM on indoor unit PCB failure
Alarm
me
ss
a
g
e
<<F01>>
<<F02>>
<<F03>>
<<F10>>
<<F11>>
F07
Compressor discharge sensor (TD)
F04
F08
F12
F16
F29
F31
H03
High pressure sensor
EEPROM on the outdoor unit PCB is a failure.
P02
P03
P14
P22
P26
H31
P16
P29
Compressor thermal protector is activated.
Power supply voltage is unusual. (The voltage is more than 260 V
or less than 160 V between L1 and L2 phase.)
I
ncorrect discharge temperature.
P04
High pressure switch is activated.
P05
Detective phase (3-phase outdoor unit only)
O
2
sensor (detects low oxygen level) activated.
Outdoor unit fan motor is unusual.
Compressor suction port temperature sensor (TS)
Po
ss
ible cau
s
e of malfunction
I
mproper setting.
<L03>
L04
L05
L06
L07
L08
<<L09>>
L17
Duplication of main indoor unit address setting in group control.
Duplication of outdoor R.C. address setting.
Group control wiring is connected to individual control indoor unit.
I
ndoor unit address is not set.
Capacity code of indoor unit is not set.
There are 2 or more indoor units
controllers which have operation
mode priority in 1 refrigerant circuit.
Priority set remote controller
Non-priority set remote controller
Protective device in indoor unit
is activated.
Protective device in outdoor unit
is activated.
<<P01>>
<<P09>>
<<P10>>
Thermal protector in indoor unit fan motor is activated.
I
mproper wiring connections of ceiling panel.
Float switch is activated.
P12
Operation of protective function of fan inverter.
Activation of
protective
device
L18
Serial
communication
errors
Mis-setting
Capacity code of outdoor unit is not set.
Mis-matched connection of outdoor units which have different kinds
of refrigerant.
This alarm message shows when the indoor unit for multiple-use
is not connected to the outdoor unit.
L02
L10
4-way valve operation failure
Overcurrent at time of compressor runs more than 80Hz (DCCT
secondary current or ACCT primary current is detected at a time
other than when
I
PM has tripped.)
I
PM trip (
I
PM current or temperature)
I
nverter for compressor is unusual. (DC compressor does not
operate.)
Compressor running failure resulting from missing phase in the
compressor wiring, etc. (Start failure not caused by
I
PM or no gas.)
Summary of Contents for U-36LE1U6
Page 35: ...35 7 3 Outdoor Unit PCB Setting CN51 CN50 D043 LED2 D042 LED1 S003 CN33 S002 S004 Fig 7 4...
Page 46: ...46...
Page 47: ...47...
Page 48: ...DC0811 0 Printed in Japan...
