Haier AD182ALERA Service Manual page 32

pressure is too low and low pressure switch is running for 30 senconds, compressor and outdoor
fan motor will stop and will send failure
13. Trouble code
The remote receiver, wired controller and indoor PCB indicator all can indicate the failure code.
Remote
Wired
control
controll
indoor
er
PCB flash
display
times
10 08(08H)
1 01(01H)
2 02(02H)
3 74(4AH)
4 73(49H)
5 72(48H)
6 83(53H)
7 71(47H)
8 07(07H)
9 06(06H)
11 11(0BH)
12 03(03H)
13 13(0DH
)
14 76(4CH
)
15 05(05H)
16 84(54H)
17 80(50H)
18 12(0CH
)
19 75(4BH)
20 77(4DH
)
Commercial Air Conditioner
Central
controll
Fault description
er
display
21D Fault in
system
01D Indoor ambient
temp. sensor failure
02D Indoor pipe temp.
sensor failure
11D Outdoor ambient
temp. sensor failure
12D Outdoor pipe temp.
sensor failure
10D Overcurrent
14D High pressure
malfunction
22D Power failure
06D Communication
failure between
wired controller and
indoor unit
05D Communication
failure between
indoor and outdoor
units
30D External
signal input
20D
Fault in coil/suction
line temp. sensor
31D Temperature
shut-off
15D Fault in discharging
temp. sensor
17D EEPROM error
26D Low pressure
malfunction
15D Compressor
overheat
23D Fault in operation
mode
18D Outdoor
B(suction
sensor-multi)
15D Outdoor
discharge
temp
Possible cause
drain Float switch is open 25m or
longer
sensor broken down or short
circuit for more than 2m
continuously
sensor broken down or short
circuit for more than 2m
continuously
sensor broken down or short
circuit for more than 2m
continuously
sensor broken down or short
circuit for more than 2m
continuously
Detector CT current is above
the limit 3 times within 30m.
High pressure switch acts for
3 times in 30m
Wrong phase,
failure or loss
communication abnormal for
more than 4m continuously
communication abnormal for
more than 4m continuously
alarm External alarm is cut out for
10s or longer
sensor broken down or short
circuit for more than 2m
continuously
Directional valve malfunction
repeats 3 times
sensor broken down or short
circuit for more than 2m
continuously
EEPROM data loss
low pressure
activated
Detected temperature of
discharge line is higher
than 120℃
Indoor units operate in
different modes
coil sensor broken down or short
circuit for more than 2m
continuously
sensor broken down or short
circuit for more than 2m
B (oil
continuously
32
Model: AD182ALERA AD362AHERA
Remedy
due to the signal,
resumable
due to the signal,
resumable
due to the signal,
resumable
due to the signal,
resumable
due to the signal,
resumable
Need
checked, reset
Need
checked, reset
phase Need
checked, reset
due to the signal,
resumable
due to the signal,
resumable
due to the signal,
resumable
due to the signal,
resumable
Need
checked, reset
due to the signal,
resumable
Default
operation
switch is Need
checked, reset
Resrorable
when
than 100℃
Resrorable
same o
mode
due to the signal,
resumable
due to the signal,
resumable
to be
to be
to be
to be
to be
lower
in
peration