Troubleshooting
4-10 Samsung Electronics
KEY
Key Operation Key Operation 7-segment Display
K1 Short
1st Heating test mode
2nd Defrost test mode*
3rd Stop
K2 Short
1st Cooling test
2nd Inverter check
3rd Pump down
4th Stop
K3 Short 1st Reset Release Eco mode
4-2 Items to check before diagnostics
4-2-1 Test run mode and View mode
■DisplayOptionKey
K4 short push Display contents SEG1 SEG2 SEG3 SEG4 Unit
1 Order frequency 1 Hundreds digit Tens digits Units digit Hz
2 Current frequency 2 Hundreds digit Tens digits Units digit Hz
3
The number of
preset indoor units
3 Hun
dreds digit Tens digits Units digit Unit
4
Ambient
temperature sensor
4 +
/- Tens digits Units digit °C
5
Compressor
discharge sensor
5 Hun
dreds digit Tens digits Units digit °C
6 Eva Sensor 6 +/- Tens digits Units digit °C
7 Condenser sensor 7 +/- Tens digits Units digit °C
8 Current 8 Tens digits Units digit The first place of decimals °C
9 Outdoor fan RPM 9 Thousands digit Hundreds digit Tens digits rpm
10
Target discharge
temperature
A Hun
dreds digit Tens digits Units digit °C
11 EEV B Hundreds digit Tens digits Units digit step
12
The capacity sum of
indoor units
C T
ens digits Units digit The first place of decimals kW
13 Protective control D
0: Cooling
1: Heating
Protective control
0: No Protective control
1 : Freezing
2 : Non-stop defrosting
3 : Over-load
4 : Discharge
5 : Total electric current
Frequency status
0: Normal
1: Hold
2: Down
3: Up_limit
4: Down_limit
-
14 IPM temperature E Hundreds digit Tens digits Units digit -
15
The number of
connected indoor units
F 0 T
ens digits Units digit EA
■Viewmodedisplay