e7.1
1st stage gas valve (MVL) is energized when it should be off
This code typically points to
- 1st-stage gas valve energized when it should be off
Next checks to confirm
- Verify gas valve wiring
- Inspect for backfeed or control fault
Escalation
Gas-valve safety fault
Reset behavior
Clears when gas-valve control fault corrected.
Safety Critical
Immediate concern