Troubleshooting
Electrical Control System
123
2.4.1.3. Indoor EEPROM Malfunction
Malfunction conditions
Main PCB chip does not receive feedback from EEPROM chip
Possible causes
●
Installation mistakes
●
Faulty PCB
Yes
Replace the indoor main PCB
Power off, then restart the
unit 2 minutes later. Does a
problem remain?
EEPROM: An electrically erasable programmable read-only memory whose contents can be erased and
reprogrammed using a pulsed voltage.
2.4.1.4. Water-Level Alarm Malfunction
Malfunction conditions
If the sampling voltage is not 5V, the LED will display the failure
code.
Possible causes
●
Wiring mistakes
●
Faulty water-level switch
●
Faulty water pump
●
Faulty indoor PCB
Is the water-level
switch inserted
properly?
Is the water-level
switch inserted
properly?
No
Insert the water-level switch
properly
Insert the water-level switch
properly
Is the water-level
switch broken?
Is the water-level
switch broken?
Yes
Replace the water-level switch
Replace the water-level switch
Replace the water pump. Is
the malfunction still not
resolved?
Replace the water pump. Is
the malfunction still not
resolved?
Yes
No
Yes
Replace the indoor main PCB
Replace the indoor main PCB
Power off, then restart the unit 2 minutes
later. Is it still displaying the error code?
Power off, then restart the unit 2 minutes
later. Is it still displaying the error code?
Yes
Summary of Contents for LICH4012021T431E-1
Page 12: ...Service Space Indoor Units 10 3 Service Space 1000mm 1000mm 1000mm 1000m m Chart 3...
Page 13: ...Wiring Diagrams Indoor Units 11 4 Wiring Diagrams...
Page 15: ...Air Velocity Distributions Reference Data Indoor Units 13 36K Cooling Heating...
Page 16: ...Air Velocity Distributions Reference Data Indoor Units 14 48 60K Cooling Heating...
Page 21: ...Field Wiring Indoor Units 19 10 Field Wiring...
Page 28: ...Wiring Diagrams Indoor Units 26 4 Wiring Diagrams 12k 18k 60k...
Page 39: ...Field Wiring Indoor Units 37 10 Field Wiring 12K 18K 60K...
Page 43: ...Ceiling Floor Type Indoor Units 41 3 Service Space...
Page 48: ...Ceiling Floor Type Indoor Units 46 Floor installation Discharge angle 17 Discharge angle 50...
Page 50: ...Ceiling Floor Type Indoor Units 48 Floor installation Discharge angle 17 Discharge angle 50...
Page 52: ...Ceiling Floor Type Indoor Units 50 Floor installation Discharge angle 17 Discharge angle 50...
Page 54: ...Field Wiring Indoor Units 52 10 Field Wiring...
Page 57: ...Features Indoor Units 55...
Page 59: ...Service Space Indoor Units 57 3 Service Space...
Page 60: ...Wiring Diagrams Indoor Units 58 4 Wiring Diagrams LICH4012021T431E 1 LICH4018021T431E...
Page 64: ...Field Wiring Indoor Units 62 10 Field Wiring LICH4012021T431E 1 LICH4018021T431E...
Page 67: ...Dimensions Outdoor Units 65 Model KBtu h Unit mm W D H W1 A B 48 60 952 415 1333 1045 634 404...
Page 69: ...Wiring Diagrams Outdoor Units 67 3 Wiring Diagrams LIHP012000T431E...
Page 70: ...Wiring Diagrams Outdoor Units 68 LIHP018000T431E LIHP024000T431E...
Page 71: ...Wiring Diagrams Outdoor Units 69 LIHP036000T431E...
Page 72: ...Wiring Diagrams Outdoor Units 70 LIHP036000M431E...
Page 73: ...Wiring Diagrams Outdoor Units 71 LIHP048000T431E LIHP048000M431E LIHP060000M431E...
Page 98: ...Refrigerant pipe installation Installation 96...