SHOP PRODUCTS
Houzz Logo Print
webuser_68368777

What does the red flashing LED on my Lennox iComfort S30 display mean?

William Lowe
4 years ago

We upgraded our Lennox dual-fuel HVAC system to the iComfort zone control package a week ago. We initially had some issues with the zone sensors, but that seems to have been resolved. However, there is a tiny LED at the top of the S30 Thermometer (the main display panel) that is almost always flashing red very rapidly. It occasionally has shown a steady amber, but only briefly. This LED is not even mentioned in any of the documentation I can find. There are no notifications or alerts reported by the system. I would very much like to know what the flashing red means. Thanks.

Comments (3)