F11Warning
Haier Oven/Range F11 Error Code
The control board and display/UI board are not communicating correctly.
Common causes
- Loose or damaged wiring harness between boards
- Faulty display board
- Faulty control board
How to fix it
- Unplug the oven.
- Remove the control panel and inspect all connectors between boards.
- Reseat the wiring harnesses.
- Check for bent pins or corrosion.
⚠ When to call a pro: If reseating does not fix, likely one of the boards is defective — call a technician.
Part links are affiliate links — as an Amazon Associate we may earn a small commission at no extra cost to you.
Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.