What F9 Means
F9 on a gas rangetop-style cooktop points to an igniter timeout — the electronic igniter attempted to light a burner but didn't get confirmation of a flame within the expected window.
Common Causes of F9
- Burner cap misaligned or clogged with food debris
- Igniter electrode is dirty or has failed
- Gas valve for that burner isn't opening fully
🔧 One Safe Check You Can Try
Check that the burner cap and ports are seated correctly and clear of food debris, since a misaligned cap is a common, owner-fixable cause.
⚠ Why You Shouldn't Go Further Than That
- If a clean, correctly-seated burner still gives F9, the igniter or gas valve needs technician diagnosis, and gas-valve work specifically shouldn't be attempted without training.
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
- F9
- Appliance
- Monogram cooktop
- 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.