12
Ignition-related lockout / retry condition on this generation
This code typically points to
- Public accessible snippet does not expose the per-code meaning text separately
- Treated as part of ignition/lockout family in this generation
Next checks to confirm
- Use underlying ignition diagnostics
- Confirm whether manual revision for exact furnace exposes 12 as retry/lockout state before publishing to production tool as customer-facing text
Escalation
One-hour soft-lockout family
Reset behavior
Soft-lockout reset behavior per control.
Urgent
Fix now