Haier 1U35YESFRA-4 Service Manual page 32

Error Codes and Description indoor display
10.4
Split board: LED1 light of outdoor PCB flash; All-in-one board: LED2 light of outdoor PCB flash
ERROR CODE
Indoor and
Outdoor
Indoor
Malfunction
Outdoor
Malfunction
OUTDOOR
(LED FLASH TIMES)
E7 15
E1 /
E2 /
E4 /
E5 22
E9 21
E14 /
F1 2
F2 24
F3 4
F4 8
F6 12
F7 11
F8 9
F9 26
F11 18
F12 1
FAULT DESCRIPTION
Communication fault between indoor
and outdoor units
Indoor temperature sensor failure
pipe temperature sensor failure
Indoor EEPROM failure
Indoor anti-frosting protection
Indoor unit overload in heating mode
Indoor fan motor malfunction
IPM protection
Instantaneous over-current protection
of the compressor
Communication error between Power
module and main PCB board.
Compressor discharging temperature
protection
outdoor ambient sensor failure
Suction temperature sensor failure
DC fan motor malfunction
Module reset
Loss of synchronism detection
EEPROM failure
32
Service Diagnosis
SPARE PART
Indoor PCB
Outdoor PCB
Power module
Communication wiring
Room temperature sensor
Indoor PCB
pipe temperature sensor
Indoor PCB
Indoor PCB
pipe temperature sensor
Indoor PCB
Indoor motor
pipe temperature sensor
Indoor PCB
Indoor motor
Indoor motor
Indoor PCB
Power module
Refrigerant
Power module
Refrigerant
compressor
Power module
Outdoor PCB
Outdoor PCB
discharge sensor
outdoor ambient sensor
Suction temperature sensor
outdoor PCB
outdoor PCB
outdoor motor
Power module
Outdoor PCB
compressor
The wiring of compressor
compressor
Power module
Outdoor PCB