Air-Con ABXCI4H4S0, Service Manual, Page: 54 / 70

54
33 o x x
★
The failure for
temperature
sensor of
indoor room
a.
The indoor room temperature
sensor loose;
b.
The indoor room temperature
sensor is failure;
c.
The indoor control board is
failure.
34 o x ★ x
The failure for
temperature
sensor of
indoor coil
temperature
a.
The indoor coil temperature
sensor loose;
b.
The indoor coil temperature
sensor is failure;
c.
The indoor control board is
failure.
36

★

★
Communication
failure between
the indoor unit
and outdoor
unit
a.
the communication cable
connect loose;
b.
the communication cable is
failure;
c.
the connection between the
filter board and the outdoor
control board is incorrect or
loose;
d.
the connection between the
filter board and the terminal is
incorrect or loose;
e.
the indoor control board is
failure;
f.
the PFC board is failure;
g.
the power board is failure;
h.
the outdoor control board is
failure.
38 o
★ ★ ★
Indoor
EEPROM
failure
a.
The EEPROM chip loose;
b.
The indoor control board is
failure
39 o x
★ ★
Indoor fan
motor run
abnormally
a.
There are something block
the indoor fan motor;
b.
The fan motor cord connect
loose;
c.
The fan motor is failure;
d.
The indoor control board is
failure
41
★ ★
o
★
The failure for
Indoor
grounding
protective
The indoor control board is
failure
2.2 LED display
Error
code
Sleep Timer Running Remark
：★
Light

Flash x OFF
1 2 3
Content Remark
The root cause is may be one of
the following