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E163 :
Troubleshooting
● If Error code is displayed on indoor or outdoor LED, check as follows;
- Manaul address setting
Contents
Q1 Turn on the system. But outdoor units PCB displayed E201 or E101 Error code.
Check point Remarks
Step 1
Check to Number of indoor unit’s SW01.
Outdoor PCB
SW01
Step 2
Check to power cable to indoor units.
Check to communication cable indoor units.
Wire connect
Contents
Q2 Turn on the system. But outdoor units PCB displayed E203 Error code.
Check point Remarks
Step 1
Outdoor communication error between the outdoor main
PCB and sub PCB.
.Outdoor PCB
SW01
Step 2
Check to sub PCB wire and replace it. Wirre connect
Contents
Q2
Turn on the system. But indoor unit displayed E121/122/123/154 Error
Error code
Explanation
E121
Indoor unit room temperature sensor error (open/short)
E122
Indoor unit heat exchanger in temperature sensor error (open/short)
E123
Indoor unit heat exchanger out temperature sensor error (open/short)
E154
Indoor unite fan error
Guicance
Please, all units turn off and check to indoor unit’s PCB and wire connection. E121/122/123 error detected, replace
related sensor.
Contents
Q4
Turn on the system. But indoor unit displayed E162/163 Error code.
Error code
Explanation
E162
Indoor unit EEPROM Error.
E163
Indoor unit EEPROM Option Error.
Guidance
Please, all units turn off and follow guidance.
E163 : Please reset indoor Option code.
If you don’t know about that, replace indoor unit PCB which is related.
E162 : Please replace indoor unit PCB which is related.
Contents
Q5
Turn on the system. But outdoor unit displayed E221/237/251/320 Error
Error code
Explanation
E221
Outside temperature sensor error (open/short)
E237
Indoor unit heat exchanger in temperature sensor error (open/short)
E251
Condenser temperature sensor error (open/short)
E251
Compressor Discharge temperature sensor error (open/short)
E230
Compressor OLP sensor error (open/short)
Guidance
Please, The System turn off and replace sensor which is related.
Samsung Electronics 9-8