Samsung Air Conditioner Error Code 163

Error 163 indicates an EEPROM option error on the indoor unit, meaning the remote controller option code is either missing, incorrect, or corrupted. The EEPROM chip stores model-specific configuration data that the unit needs to operate. Without a valid option code, the unit will not run normally. The fix typically involves re-entering the correct option code through the remote controller's service settings.

A simple power reset will not clear error 163 because the underlying issue is a missing or corrupted configuration code stored in the EEPROM. Cycling power does not reprogram the memory chip. The error will return every time the unit powers on until the correct option code is entered through the remote controller service procedure.

If the fix is simply re-entering the option code, you may only pay for a service call, which typically ranges from $75 to $150 depending on your location and the technician. If the EEPROM chip or the indoor unit's main PCB needs to be replaced, costs can rise significantly, typically ranging from $200 to $600 or more depending on parts and labor. Getting a diagnosis from a certified technician before authorizing any part replacement is recommended.

The first step is to re-enter the remote controller option code that corresponds to your specific indoor unit model. This is done through the installer or service mode on the remote controller. If you do not have the correct option code for your model, a Samsung-certified technician can look it up and program it. If the error returns after correct code entry, the PCB or EEPROM chip may need to be replaced.

Error 163 is a configuration error rather than a safety-critical fault, so it does not indicate a dangerous condition such as a refrigerant leak or electrical hazard. However, the unit will not operate correctly until the error is resolved, which means you will not have functional cooling or heating. It is best to address the error promptly to avoid discomfort, but there is no immediate risk to the equipment or occupants.