Hisense ADM-24UX4SGKA Service Manual page 27

7 . T R O U B L E
7 . T R O U B L E
7-1. Trouble alarm
Trouble List
一.Indication on the outdoor unit
When the compressor is interrupted, the outdoor LEDs are used to indicate the troubles listed below:
Symbols for indicator lights: ★: ON
LED1 LED2
× ×
1
×
★
2
×
★
3
×
★
4
★ ★
5
× ×
7
× Ο
8
Ο
★
9
Ο
★
10
× Ο
11
★ ★
12
S H O O T I N G
S H O O T I N G
Ο: flashing
LED3
×
Normal
×
Outdoor coil sensor in trouble
×
Compressor temperature sensor
short-circuited, open circuited or
the corresponding test circuit in
trouble
★
Outdoor heat exchanger
temperature sensor
short-circuited, open circuited or
the corresponding test circuit in
trouble
×
Outdoor ambient temperature
sensor short-circuited, open
circuited or the corresponding test
circuit in trouble
Ο
Signal communication abnormal
(indoor – outdoor)
×
Power module (IPM) protection
★
Maximum current control
×
Current overload control
★
Compressor discharge
temperature too high
Ο
Over and under-voltage control
×: OFF
Troubles
24
A D M - 2 4 U X 4 S G K A
A D M - 2 4 U X 4 S G K A
Possible Cause
1. Outdoor coil sensor is failure
1. Compressor overheat protection
sensor is failure
2. Outdoor control board in trouble
1. Outdoor heat exchanger
temperature sensor is failure
2. Outdoor control board in trouble
1. Outdoor ambient temperature
sensor is failure
2. Outdoor control board in trouble
1. Connection cable
connect
2. Indoor control board in trouble
3. Outdoor control board in trouble
1. Normal protection
2. Outdoor IPM control board is
failure in the outdoor control
board.
3. The compressor is failure.
1. Normal protection
2. The compressor is failure
1. Normal protection
2. The outdoor control board in
trouble.
1. Heat exchanger and indoor filter
were dirty.
2. The refrigeration
stopt.
3. Compressor
temperature sensor is failure.
1.
Voltage of power
abnormal.
2.
Outdoor control board in trouble.
isn't well
system was
discharge
supply is