E19
Arctic
Communication Error Between Control Boards
E19 on display, audible beeping and possible communication loss between display and main board
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
Loose or damaged communication harness, Faulty display board, Faulty main control board, Electrical noise or interference
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing any control boards.
Steps:
- Power reset: Disconnect power for 10 minutes to clear transient communication faults.
- Inspect harness: Locate the communication cable (often a multi-wire harness or flat ribbon) between the main control and display/UI board. Ensure both ends are fully seated.
- Check for damage: Look for pinched, cut, or chewed (rodent) wires along the harness path.
- Board isolation: If available, follow service documentation to test with a known-good UI or main board. In practice, many repairs involve replacing the main control first.
- Replace faulty board/harness: If reseating and inspection do not resolve E19, replace the damaged harness or the suspect board.
Warning: Do not modify or splice communication cables unless using proper connectors and shielding as specified.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control Board
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements