Troubleshooting - Samsung AC BNPDBC Series User & Installation Manual

Troubleshooting

The table below give indication about self diagnostic routine. Some of error code requires activities
exclusively for Authorized Service Center.
Outdoor unit
If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and
INVERTER PCB.
Error
No.
Code
Error due to repeated address setting(when 2 or
1 E108
more devices has same address within the network)
Error on indoor temperature sensor of indoor
2 E121
unit(Short or Open)
3 E122 Error on EVA IN sensor of indoor unit(Short or Open)
Error on EVA OUT sensor of indoor unit(Short or
4 E123
Open)
5 E153 Error on float switch (2nd detection)
6 E154 RPM feedback error of indoor unit
7 E162 Outdoor unit EEPROM Read/Write error (H/W)
8 E163 Outdoor unit EEPROM Read/Write error (Option)
9 E198 Error on thermal fuse of indoor unit (Open)
"Communication error between indoor and outdoor
unit(Installation number setting error repeated
10 E201
indoor unit address,indoor unit communication cable
error)"
"Communication error between indoor and outdoor
11 E202 unit(Communication error on all indoor unit, outdoor
unit communication cable error)"
Communication error on all PBA within the outdoor
12 E205
unit C-Box,communication cable error
E206-C002 : Fan PBA communication error,
13 E206
E206-C003 : INV PBA communication error
14 E221 Error on outdoor temperature sensor (Short or Open) Check Outdoor sensor Open / Short
15 E231 Error on outdoor COND OUT sensor (Short or Open)
Error on discharge temperature sensor of compressor
16 E251
1 (Short or Open)
17 E320 Error on OLP sensor (Short or Open)
18 E346 Error due to operation failure of Fan2
19 E347 Motor wire of Fan2 is not connected
Meaning Remarks
Check on repeated indoor unit main
address
Indoor unit Room Thermistor Open/
Short
Indoor unit EVA_IN Thermistor Open/
Short
Indoor unit EVA_OUT Thermistor Open/
Short
"Indoor unit Float Switch Open/Short
Drain Pump operation Check"
Check on indoor unit indoor Fan
operation
Check Outdoor EEPROM PBA
Check Outdoor EEPROM Data
Thermal Fuse Open Check of indoor unit
Terminal Block
Check indoor quantity setting in outdoor
Check electrical connection and setting
between indoor unit and outdoor unit
-
-
Check Cond-Out sensor Open / Short
Check Discharge sensor Open / Short
Check OLP sensor Open / Short
Fan2 error
Fan2 error
English 67