e2.1
Retry Exceeded — flame never sensed
This code typically points to
- No flame established during ignition trials
- Gas supply issue
- Ignitor fault
- Flame-sense fault
Next checks to confirm
- Verify gas supply
- Verify ignitor operation
- Verify flame sense current and ground
Escalation
One-hour lockout after 3 times
Reset behavior
One-hour lockout per public table; historical fault handled through L6F.
Urgent
Fix now