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. |
| Wire connect |
Check to communication cable indoor units. |
| ||
|
|
| |
|
|
|
|
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 | .Outdoor PCB | |
PCB and sub 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. | ||
|
| ||
| Please, all units turn off and follow guidance. | ||
Guidance | E163 | : Please reset indoor Option code. | |
E163 | : 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 |
