System Diagnosis
Polarity Reversed. The incoming power polarity is reversed or there is a grounding issue.
Lennox | LED Status Codes (DS1 & DS2)
Error Code Fast Flash / Slow Flash
Troubleshooting guide for the Lennox LED Status Codes (DS1 & DS2) system fault Fast Flash / Slow Flash.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
Potential Causes & Solutions
- Wiring error, poor ground.
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