33
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
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.
T
he communication cable
connect loose;
b.
T
he communication cable is
failure;
c.
T
he connection between the
filter board and the outdoor
control board is incorrect or
loose;
d.
T
he connection between the
filter board and the terminal is
incorrect or loose;
e.
T
he indoor control board is
failure;
f.
T
he PFC board is failure;
g.
T
he power board is failure;
h.
T
he outdoor control board is
failure.
38
★
★
★
Indoor
EEPROM
failure
a.
The EEPROM chip loose;
b.
The indoor control board is
failure
39
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
★
★
★
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
-
2
3
-
Summary of Contents for WHZ09SZA21S
Page 11: ...Refrigerant circuit Models WHZ09SZA21S and WHZ12SZA21S 10 ...
Page 41: ......