Haier N Series Service Manual page 50

11.4 Error Codes and Description indoor display
Indoor and
Outdoor
Indoor Malfunction
Outdoor
Malfunction
Code indication
Indoor
Outdoor
displaying
(LED1 flash
panel code
times)
indication
E7 15
E1 --
E2 --
E 4 - -
E14 --
F 1 2 1
F 1 2
F22 3
F3 4
F19 6
F4 8
9
F8
F21 10
F7 11
F6 12
F25 13
F11 18
F28 19
F2 24
F23 25
E9
21
fault description
Communication fault between indoor and
outdoor units
Room temperature sensor failure
Heat-exchange sensor failure
n I d o r o E E P R O M e r r r o
Indoor fan motor malfunction
O u d t o r o E E P R O M e r r
T h e p o r e t t c o i n f o P I M
Overcurrent protection of
for the outdoor model
Communication fault between the IPM and
outdoor PCB
Power voltage is too high or low
Overheat protection
temperature
Outdoor DC fan motor fault
Defrost temperature sensor failure
Suction temperature sensor failure
Ambient temperature sensor failure
Discharge temperature sensor failure
deviate from the normal for the compressor
Loop of the station detect error
Overcurrent of the compressor
Overcurrent protection for single-phase of the
compressor
High work-intense protection
48
Service diagnosis
r o
AC electricity
for Discharge
Domestic air conditioner
Reference
Page
Page 58.
Page 49.
Page 49.
P a g e 50.
Page 51.
P a g e 50.
P a g e 53.
Page 54.
Page 55.
Page 56.
Page 57.
Page 52.
Page 49.
Page 49.
Page 49.
Page 49.
Page 60.
Page 60.
Page 54.
Page 54.
Page 61.