Haier T-Series Service Manual page 34

Indoor and
E7
Outdoor
E1
Indoor
E2
Malfunction
E4
E14
F12
F1
Outdoor
F22
Malfunction
F3
F19
F4
F21
F7
F6
F25
F11
F28
F2
F23
10.3.1 Thermistor or Related Abnormality
outdoor display LED1 flash 10 times：Defrost temperature sensor failure
LED1 flash 11 times：Suction temperature sensor failure
LED1 flash 12 times：Ambient temperature sensor failure
LED1 flash 13 times：Discharge temperature sensor failure
Method of The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction
Detection
Malfunction when the thermistor input is more than 4.92V or less than 0.08V during compressor
D e c s i o i n o p r e t a
Conditions
Note: The values vary slightly in some models
Supposed ■ Faulty connector connection
Causes ■ Faulty thermistor
■ Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else
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o i . n
parts damage may be occurred.
Communication fault between indoor
15
and outdoor units
-- Room temperature sensor failure
-- Heat-exchange sensor failure
-- Indoor EEPROM error
-- Indoor fan motor malfunction
1 Outdoor EEPROM error
2 The protection of IPM
Overcurrent
3
electricity for the outdoor model
Communication fault between the IPM
4
and outdoor PCB
6 Power voltage is too high or low
Overheat
8
temperature
10 Defrost temperature sensor failure
11 Suction temperature sensor failure
12 Ambient temperature sensor failure
13 Discharge temperature sensor failure
deviate from the normal
18
compressor
19 Loop of the station detect error
24 Overcurrent of the compressor
Overcurrent protection for single-phase
25
of the compressor
33
Connector Wiring Diagram
protection of
protection for Discharge
for the
Domestic Air Conditioner
AC