7 red flashes
No ignition after three trials
This code typically points to
- Gas off or low gas pressure
- Faulty gas valve
- Dirty flame sensor
- Faulty igniter
- Burner problem
Next checks to confirm
- Verify gas valve switch and gas supply
- Verify igniter and flame prove
- Inspect burner carryover
Escalation
Repeated trials exhausted; retry after lockout.
Reset behavior
1-hour lockout then retry.
Urgent
Fix now