What F8 Means
F8 is a door lock mechanism failure during or after a self-clean cycle — related to F5, but specifically flags the locking mechanism itself rather than the control signal.
Common Causes of F8
- Latch mechanism has physically failed or jammed
- Latch motor has failed
🔧 One Safe Check You Can Try
Same as F5 — don't force the door, let the unit fully cool and try a breaker reset first.
⚠ Why You Shouldn't Go Further Than That
- Forcing a jammed latch mechanism can break it entirely, turning a repair into a full latch-assembly replacement.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.
Technical Reference
- Code
- F8
- Appliance
- Monogram wall oven
- Maker documentation
- Monogram owner manuals and use & care guides
- Checked
- September 2026
Code meanings can change between control generations. Before acting on a code, match the full model number on your appliance's rating label against the manual for that model. We are an independent repair service, not affiliated with Haier US Appliance Solutions, Inc.