E102
Samsung
Indoor Unit EEPROM or PCB Fault
Indoor unit runs briefly then stops; display shows E102.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Corrupted EEPROM on indoor PCB, Faulty indoor main PCB, Power surge damage, Incorrect PCB replacement or firmware mismatch
How to Fix / Troubleshooting
Safety warning: Always isolate power at the breaker before opening the indoor unit. Electronic boards can retain charge.
- Step 1 – Power cycle: Turn off the unit and breaker for 10 minutes to fully discharge capacitors. Restore power and test again.
- Step 2 – Check for surge damage: Look for signs of burning or charring on the indoor PCB. If present, do not attempt to power the unit again.
- Step 3 – Confirm correct PCB: If the PCB was recently replaced, verify the part number matches the exact model of your Samsung indoor unit. Incorrect boards can cause E102.
- Step 4 – Reset settings (if available): Some Samsung models allow a factory reset via the remote (consult the user manual). Perform the reset and re-test.
- Technician required: EEPROM corruption and PCB-level faults require specialized tools and firmware. Contact an authorized Samsung service center for board reprogramming or replacement.
Advertisements
Repair Difficulty
Professional Required
5/5
Required Part
Indoor Unit Main PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements