11
Ignition failure / burners do not light expected code
This code typically points to
- No gas valve output
- Gas pressure issue
- Spark electrode position issue
- IFC valve output issue
Next checks to confirm
- Check 24V between M/P and C terminals
- Check inlet and manifold gas pressure
- Check wiring to gas valve
- Check 24V on IFC valve pins
- Inspect spark electrode position
Escalation
After unsuccessful first trial, three additional trials occur; repeated ignition failure leads to retry/lockout family
Reset behavior
Standard retry/lockout behavior for this generation.
Urgent
Fix now