What It Means
- Polarity reversed? YES branch: LED1 FAST flash AND LED2 SLOW flash. No lamp synchrony inferred.
Lennox Ducted Heating
Lennox Error Code LED #1 FAST FLASH / LED #2 SLOW FLASH
Ducted Heating:
Causes & actions from Lennox
How it shows
- SureLight board LEDs (DS1/DS2): LED #1 FAST FLASH / LED #2 SLOW FLASH (led1: flashing (fast), led2: flashing (slow))
Polarity reversed.
Applicable models & manual sources
- G24M
Polarity reversed? YES branch: LED1 FAST flash AND LED2 SLOW flash. No lamp synchrony inferred.
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
