Hisense AMS-07UR4SNVT4 Service Manual page 84

7 . T R O U B L E S H
7 . T R O U B L E S
Fault
code
Low voltage switch protection/Low pressure
15
protection shutdown
16
Refrigeration overload protection
17
Exhaust temperature sensor fault
AC voltage of high and low voltage protection
18
19
Intake air temperature sensor fault
Condenser entrance temperature sensor
20
The outlet of the condenser temperature
21
22
The defrosting sensor fault
23
Expansion valve A tube sensor fault
24
Expansion valve B tube sensor fault
25
Expansion valve C tube sensor fault
O O T I N G
H O O T I N G
Fault description
/ fault
fault
sensor fault
Fault description
protection pressure
System low pressure
causing low pressure
switch tripping or pressure
sensors to detect the
pressure is too low to
achieve the shutdown
protection pressure
The outdoor coil
temperature is too high to
reach refrigeration
temperature shutdown
protection
Exhaust temperature
sensor short circuit or open
circuit
Power input AC voltage is
too low or too high
Exhaust temperature
sensor short circuit or open
circuit
Condenser entrance
temperature sensor short
circuit or open circuit
The outlet of the condenser
temperature sensor short
circuit or open circuit
The outlet of the condenser
temperature sensor short
circuit or open circuit
Expansion valve A tube
sensor short circuit or open
circuit
Expansion valve B tube
sensor short circuit or open
circuit
Expansion valve C tube
sensor short circuit or open
circuit
79
REMARKS
Were applied to the low
pressure switch or a
pressure sensor type
MUTI-SPLIT TYPE
ONLY
FOR
MUTI-SPLIT&inverter
unitary types
FOR MUTI-SPLIT
outdoor
FOR MUTI-SPLIT
outdoor