lrevilot
Nov 10, 2007, 08:41 AM
How do you reset the filter message on a Honeywell Chronotherm IV Plus Thermostat?
bcoug
Jan 2, 2008, 12:01 PM
Sequentially press the I button and then the time up arrow. That will reset the indicator & turn it off. When I did it (based on a phone call to Honeywell, obivously in India) it then briefly displayed "30 days AIR" -- not sure what that's about, but the filter indicator is no longer visible.