11
Failed ignition
This code typically points to
- Flame not detected after ignition trials
- Gas supply/manifold issue
- Ignitor or valve-circuit issue
Next checks to confirm
- Accessible public snippet does not expose a dedicated per-code flowchart here
- Use ignition-failure checks published for corresponding furnace generation and underlying fault correlation with code 10 soft lockout
Escalation
Four ignition failures contribute to code 10 one-hour lockout
Reset behavior
Clears with successful ignition or via soft-lockout reset procedure if wrapped by 10.
Urgent
Fix now