6 flashes
Line reverse polarity or ignitor circuit error
This code typically points to
- Reversed hot/neutral at supply
- Poor grounding or open ignitor circuit
- Failed ignitor
Next checks to confirm
- Verify incoming L1/N polarity with meter
- Verify grounding
- Ohm the ignitor
Escalation
If polarity and ground are correct and ignitor ohms correctly, board output may be failing.
Reset behavior
Stored in memory; auto-erased after 14 days.
Service Soon
Schedule repair