What It Means
- Burner OFF? YES: normal operation, LED1 SLOW flash AND LED2 SLOW flash.
Lennox Ducted Heating
Lennox Error Code LED #1 SLOW FLASH / LED #2 SLOW FLASH
Ducted Heating:
Causes & actions from Lennox
How it shows
- SureLight board LEDs (DS1/DS2): LED #1 SLOW FLASH / LED #2 SLOW FLASH (led1: flashing (slow), led2: flashing (slow))
Normal operation standby (continuous flame check passed, burner off).
Applicable models & manual sources
- G24M
Burner OFF? YES: normal operation, LED1 SLOW flash AND LED2 SLOW flash.
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.
