Troubleshooting; The Solution For Digital Display Code Problem; The Common Problem Judgement Method - Hisense RS-47WL Service Manual

Troubleshooting

◆ The solution for digital display code problem

The digital display window
1
show "E1"
The digital display window
2
show "E2"
The digital display window
3
show "EC"
The freezer digital display
4
window show "EF"
The testing method of sensor：
Using the multimeter with the ohm switch to measure the resistor of sensor, normally at surrounding 25℃ the
resistor should be about 2kohm and every with the temperature decreases 1℃ the corresponding resistor value
would increase about 45ohm.If the measured value is not within the normal scope, the sensor is bad and needs
to repair or change.

◆ The common problem judgement method

Problem
Refrigerator can't start
1. The Refrigerator chamber
Tem. Sensor is open circuit or
short circuit.
2. The Refrigerator chamber
Tem. Sensor is bad.
3. The control PCB is bad.
1. The Evaporator Defrost
Sensor is open circuit or short
circuit.
2. The Evaporator Defrost
Sensor is bad.
3. The control PCB is bad.
1. The receive communication
fault
electrical PCB and the display
PCB.
2. The control PCB is bad.
3. The display PCB is bad.
1. The Fan motor is open
circuit or short circuit.
2. The Fan motor is bad.
3. The control PCB is bad.
1.1 Is the power cord connecting well？
1.2 Is the power voltage too low？
1.3 Is the sensor irrational setting?
1.4 Is the ambient temperature too low?
1.5 Is the circuit on power?
1.6 Is there some default in compressor
1.7 Is the refrigeration system blocked by ice or dirty, please stop the unit and restart
between the main
Cause
1. Using a Multimeter with the ohm
switch to measure the resistor of
sensor or checking the connecting is
well or not.
2. Change the sensor
3. Change the control PCB
1. Using a Multimeter with the ohm
switch to measure the resistor of
sensor or checking the connecting is
well or not.
2. Change the sensor
3. Change the control PCB
1. Check the wire terminal is well or
not between the main electrical PCB
and display PCB.
2. Change the main electrical PCB.
3. Change the display PCB.
1. Using a Multimeter with the ohm
switch to measure the resistor of Fan
motor or checking the connecting is
well or not.
2. Change the Fan motor
3. Change the control PCB
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