
The following is the fault code table of indoor
unit
.
Table
2 Indoor fault code
Fault
code Fault
d
escription
Possible
r
eason
s
for
a
bnormality
How to
d
eal
w
ith
Remarks
51 Drainage protection
1. The water level of the drain
pan exceed safe level;
2. The cable of the water level
switch
is
connect
ed
loose
ly
;
3.
The water level switch fail
s
;
4.
The control board fail
s
.
1.1 Check whether there
is
something block
ing
the
drain hose or the height of
the drain hose is too high;
1.2 Check the water pump and
replace the water pump
if the water pump fail
s
;
2.
Reconnect the cable of the
water level switch refer
ring
to
the wiring diagram;
3.
Replace the water level
switch;
4.
Replace the control board.
55
Mode
c
onflict
f
ault
The user set the conflicting mode for
more than two indoor units
.
Reset the operat
ion
mode for the
indoor unit, for
with one
outdoor
unit, the user should avoid set
ting
the conflicting operat
ion
mode
with the indoor units.
64
Communication
between Indoor
& Outdoor unit
Fault
1.
T
he indoor unit and the outdoor
unit
are not
connect
ed properly
;
2.
The communication cable
is
connect
ed
loose
ly
;
3.
The communication cable
between the indoor unit and the
outdoor unit is failure or the
cable
between the indoor control
board
to terminal
fails
or the
cable
between the outdoor
control board
to the terminal
fails
;
4.
The indoor control board
fail
s
;
5.
The outdoor control board
fail
s
.
1.
Reconnect the connection
cable refer
ring
to the indoor
and
outdoor wiring diagram;
2.
Reconnect the
communication cable
refer
ring
to
the indoor and
outdoor wiring
diagram;
3.
Replace the communication
cable refer
ring
to the indoor
and
outdoor wiring diagram;
4.
Replace the indoor control
board;
5.
Replace the outdoor control
board.
71
Indoor unit zero
check fault
1.
The motor wire is loosen;
2.
The motor connect
ion
is open;
3.
The motor fail
s
;
4.
Control board fail
s
.
5.
Indoor fan is baffled.
1.Replace the motor wire and
make sure the wire connect
is well;
2. Replace the motor wire;
3. Change the motor;
4. Change the indoor control
board;
5. Check and elimination of
fan motor rotation.
72 Indoor fan motor fault
1.
The cable of the indoor fan
motor
is
connect
ed
loose
ly
;
2. The cable of the indoor fan
motor fails;
3.
The indoor fan motor fail
s
;
4.
The indoor control board
fail
s
.
1. Reconnect the cable of the
fan motor;
2. Replace the cable of the fan
motor;
3. Replace the fan motor;
4. Replace the indoor control
board;
5. Check the indoor fan and
ensure the indoor fan can
run normally.
73
Indoor EEPROM
Data
1
fault
1.
2.
Indoor EE components
fail
s
;
The control circuit of the EE
components fail
s
;
3. The EE components has been
inserted
in
opposite
direction.
1.
2.
Replace the EE components;
Replace the indoor control
board;
3. Reassembly the EE
components of the indoor
control board.
-
40
-
Содержание WHU09DHA21S
Страница 57: ...2 3 4 5 6 7 8 9 10 11 1 Indoor unit WHU09DHA21S 56 Parts list ...
Страница 58: ...12 13 14 15 16 17 18 19 14 15 57 Fan ...
Страница 59: ...20 21 22 58 Electrical parts ...
Страница 61: ...2 3 4 5 6 7 8 9 10 11 1 60 Indoor unit WHU12DHA21S ...
Страница 62: ...12 13 15 16 17 18 19 14 14 15 61 Fan ...
Страница 63: ...20 21 22 62 Electrical parts ...
Страница 65: ... 64 Indoor unit WHU18DHA21S 2 3 4 5 6 7 8 9 10 11 1 ...
Страница 66: ... 65 Fan 12 13 16 17 18 19 20 21 22 14 14 14 15 15 15 ...
Страница 67: ... 66 Electrical parts 23 24 25 ...
Страница 69: ...Indoor unit WHU24DHA21S 68 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 ...
Страница 70: ... 69 Fan 16 17 18 19 20 21 22 23 18 23 ...
Страница 71: ... 70 Electrical parts 24 25 26 27 25 ...
Страница 73: ...Indoor unit WHU36DHA21S 72 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 1 ...
Страница 74: ... 73 Fan 20 21 22 23 24 25 26 27 22 24 25 27 ...
Страница 75: ... 74 Electrical parts 28 29 30 29 31 ...
Страница 77: ...Outdoor unit WHU09SZA21S 76 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 ...
Страница 78: ... Refrigerant cycle 77 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...
Страница 79: ... Electrical parts 78 32 33 34 35 36 37 38 39 40 31 41 ...
Страница 81: ...Outdoor unit WHU12SZA21S 80 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 ...
Страница 82: ... Refrigerant cycle 81 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ...
Страница 83: ... Electrical parts 82 32 33 34 35 36 37 38 39 40 31 41 ...
Страница 85: ...Outdoor unit WHU18SZA21S 84 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 ...
Страница 86: ... Refrigerant cycle 85 17 18 19 20 21 22 23 24 25 26 27 28 29 30 35 31 34 48 32 33 ...
Страница 87: ... Electrical parts 86 36 37 38 39 40 41 42 43 45 46 47 44 ...
Страница 89: ...Outdoor unit WHU24SZA21S 88 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 ...
Страница 90: ... Refrigerant cycle 22 23 24 25 26 27 28 29 30 32 33 34 35 36 31 89 37 ...
Страница 91: ... Electrical parts 90 38 39 40 42 43 44 45 46 47 48 49 41 ...
Страница 93: ...Outdoor unit WHU36SZA21S 92 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 1 ...
Страница 94: ... Refrigerant cycle 93 17 18 19 20 21 22 23 24 25 26 27 28 29 30 32 33 31 ...
Страница 95: ... Electrical parts 94 34 35 36 37 38 39 40 42 43 44 45 46 47 48 49 41 ...