Service diagnosis
3
2
Domestic air conditioner
10.3 Error Codes and Description indoor display
Code indication
fault description
Reference
Page
Indoor
displaying
panel code
indication
Outdoor
(LED1 flash
times)
Indoor and
Outdoor
E7 15
Communication fault between indoor and
outdoor units
Page .42
Indoor Malfunction
E1
--
Room temperature sensor failure
Page 31.
E2
--
Heat-exchange sensor failure
Page 31.
E4
--
Indoor EEPROM error
Page 32.
E14
--
Indoor fan motor malfunction
Page 33
Outdoor
Malfunction
F12
1
Outdoor EEPROM error
Page .32
F1
2
The protection of IPM
Page .36
F22 3
Overcurrent protection of AC electricity
for the outdoor model
Page .37
F3 4
Communication fault between the IPM and
outdoor PCB
Page.39
F19
6
Power voltage is too high or low
Page .40
F4 8
Overheat protection for Discharge
temperature
Page .41
F21
10
Defrost temperature sensor failure
Page 31.
F7
11
Suction temperature sensor failure
Page .31
F6
12
Ambient temperature sensor failure
Page .31
F25
13
Discharge temperature sensor failure
Page .31
F11
18
deviate from the normal for the compressor
Page .44
F28
19
Loop of the station detect error
Page .44
F2
24
Overcurrent of the compressor
Page .37
F23 25
Overcurrent protection for single-phase of the
compressor
Page .43
Summary of Contents for 1U18TR4ERA
Page 11: ...Pinping diagrams Domestic air conditioner 4 Piping diagrams 9 EEV EEV ...
Page 12: ...Operation range Domestic air conditioner 5 Operation range 10 ...
Page 63: ...Domestic air conditioner Removal of procedure 1 Removal of Outdoor panel 1 ...
Page 65: ...Domestic air conditioner Loosen the screws and pull the panel Removal of procedure 3 ...
Page 66: ...Domestic air conditioner 2 Removal of Electrical Box Removal of procedure 4 ...
Page 67: ...Domestic air conditioner 3 Removal of Fan and Fan Motor Removal of procedure 5 ...
Page 69: ...Domestic air conditioner 4 Removal of Fan Motor Bracket and Partition Removal of procedure 7 ...
Page 70: ...Domestic air conditioner and remove the reactor Loosen the screw Removal of procedure 8 ...