Haier ESA412K Manuel d'utilisateur Page 168

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14 4C 15 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
15 05 17 EEPROM error EEPROM data loss Default operation/reset
restoration.
To set data/control
parameter.
EEPROM, data match,
control board
16 54 26 Fault with low
pressure
Low pressure switch is
activated.
Restorable after repair. To prevent refrigerant leak. Wiring, circuit, pressure
switch, refrigeration
system
17 50 15 Detected temperature of
discharge line is higher than
120°C.
Restorable when lower
than 100°C.
To prevent overload
(temperature parameter).
Temperature, fan motor,
pressure, system
18 12 23 Fault in operation
mode
Indoor units operate in
different modes.
Restorable in same
operation mode.
To ensure same operation
mode.
User setting
19 4B Outdoor coil B 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
20 4D 15 Outdoor discharging
B
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
21 20 07 Module error Module overheat,
overcurrent, lack of current,
short-circuit.
Restorable when given
corrective signal.
To prevent overload
(ultimate state).
Power supply, feedback,
compressor, control board
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 48 10
Power failure Wrong phase, phase failure
or phase loss.
Restorable after repair. To ensure power supply. Wiring, control board, power
supply
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 49 12
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
Fault with high
pressure
High pressure switch is
activated three times within
30min.
Restorable after repair. To prevent overload
(pressure parameter).
Wiring, circuit, pressure
switch, refrigeration system
6 53 14
Fault with low
pressure
Low pressure switch is
activated.
Restorable after repair. To prevent refrigerant
leak.
Wiring, circuit, pressure
switch, refrigeration system
The others are the same as inverter unit.
Compressor overheat
0C
Note: As for the fixed frequency units, remote control and indoor lights flash times 12 and 21(Module error) is not available. While 7 (Power failure) 14
(fault in discharging temperature sensor) and 16 (Fault with low pressure) is shown as following:
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