Haier AB092ACBHA, Руководство по обслуживанию, Страница: 293 / 365

11.1.
2 For the unit with new wired controller YR-E12 (0010451521)
Remote
control
indoor
PCB flash
times
Wired
controller
display
Central
controller
display Fault description Possible cause Remedy Purpose Items to be checked
10 08(08H) 21D Fault in drain system Float switch is disconnected
25min or longer. Restorable when
given corrective
signal. To prevent condensate
spilling out of drain
pan
Water line, water pump, float
switch, I/O voltage
1 01(01H) 01D Fault in indoor ambient
temperature sensor Sensor is open-circuit or
short-circuit for 2min or longer. Restorable when
given corrective
signal. To test input signal of
system. Hardware connection, I/O
voltage division
2 02(02H) 02D Fault in indoor coil
temperature sensor Sensor is open-circuit or
short-circuit for 2min or longer. Restorable when
given corrective
signal. To test input signal of
system. Hardware connection, I/O
voltage division
3 74(4AH) 11D Fault in outdoor ambient
temperature sensor Sensor is open-circuit or
short-circuit for 2min or longer. Restorable when
given corrective
signal. To test input signal of
system. Hardware connection, I/O
voltage division
Fault in outdoor coil
temperature sensor Sensor is open-circuit or
short-circuit for 2min or longer. Restorable when
given corrective
signal. To test input signal of
system. Hardware connection, I/O
voltage division
4 73(49H) 12D
Fault in discharging
temperature sensor Sensor is open-circuit or
short-circuit for 2min or longer. Restorable when
given corrective
signal. To test input signal of
system. Hardware connection, I/O
voltage division
Overcurrent Detected CT current is above
the limit three times within
30min.
Restorable after
repair. To prevent overload
(electric parameter). Power supply, wiring,
compressor, pressure
5 72(48H) 10D
Power failure Wrong phase, phase failure or
phase loss. Restorable after
repair. To ensure power
supply. Wiring, control board, power
supply
Fault with high pressure Low pressure switch is
activated three times within
30min.
Restorable after
repair. To prevent overload
(pressure parameter). Wiring, circuit, pressure switch,
refrigeration system
6 83(53H) 14D
Fault with low pressure Low pressure switch is
activated.
Restorable after
repair. To prevent refrigerant
leak. Wiring, circuit, pressure switch,
refrigeration system
8 07(07H) 06D Communication error
between wired controller
and indoor unit
Communication error lasts
4min or longer. Restorable when
given corrective
signal. To ensure
transmission to and
from control board.
Wiring circuit, transmission
voltage
9 06(06H) 05D Communication error
between indoor and
outdoor units
Communication error lasts
4min or longer.
Restorable when
given corrective
signal. To ensure
transmission to and
from control board. Wiring circuit, transmission
voltage
11 11(0BH) 30D External alarm signal input External signal is cut out for
10s or longer.
Restorable when
given corrective
signal. To control external
connection provided
for building.
External signal, wiring, control
board
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