Diagnostic Checklist Ago; Test Operation Mode And Check Mode - Samsung AC071MN4PKH Service Manual

4-3. Diagnostic Checklist ago

4-3-1. Test operation mode and check mode

▒ Display Options key
KEY Push type Mode
1st Heating test mode
K1 Short 2nd Defrost test mode
3rd Stop
1st Cooling test
K2 Short 2nd Inverter check
3rd Pump down
K3 Short 1st Reset Release Eco mode
Defrost test mode
※
Condition 1: The outdoor temperature is below 10°C.
Condition 2: All the temperature conditions should meetthe defrost conditions.
▒ Verify mode display
Pressing the K4 switch, you can view the following information about the system status
※
Short push Screen content
1 Oder Frequency
2 Current Frequency
3 The number of current indoor units
4 The sensor for outdoor air intake
5 Discharge sensor
6 Eva-Mid sensor
7 Cond sensor
8 Current
9 Fan RPM
10 Target discharge temperature
11 EEV
12 The capacity sum of indoor units
13 Protective control
14 The temperature of heat radiating plate
15 S/W check
Long push 1
After short push 1
After short push 1
※ Press and hold the K4 button(The main micom version) Press once more shortly Press once more shortly(E2P version)
▒ K3 switch
mode(Eco Mode) release
standby
Display
SEG1 SEG2 SEG3 SEG4
SEG1
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Main micom version
Inverter micom version
E2P version
7-segment display
< AC090/100/120/140MXAD*H >
SEG2 SEG3
Hundreds digit Tens digit
Hundreds digit Tens digit
Hundreds digit Tens digit
+/- Tens digit
Hundreds digit Tens digit
+/- Tens digit
+/- Tens digit
Tens digit Units digit
Thousands digit Hundreds digit
Hundreds digit Tens digit
Hundreds digit Tens digit
Tens digit Unit digit
Protective control
0: No Protective
control
1: Freezing
0: Cooling
2: Non-stop
defrosting
1: Heating
3: Over-load
4: Discharge
5: Total electric
current
Hundreds digit Tens digit
- -
Year (Hex) month (Hex)
Year (Hex) month (Hex)
Year (Hex) month (Hex)
4-17
Troubleshooting
Key Switch
SEG4 Unit
Units digit Hz
Units digit Hz
Units digit Unit
Units digit °C
Units digit °C
Units digit °C
Units digit °C
The first place of
A
decimals
Tens digit rpm
Units digit °C
Units digit step
The first place of
kW
decimals
Frequency status
0: Normal
1: Hold
2: Down -
3: Up_limit
4: Down_limit
Units digit -
- -
Date (Tens digit) Date (Units digit)
Date (Tens digit) Date (Units digit)
Date (Tens digit) Date (Units digit)