If your thermostat is behaving erratically or something strange is in the display, hitting “Reset” buttons can often correct the problem.


Hardware Reset:


Try this first since it does not erase anything.  Take the front of the thermostat off the wall and look for a small black round reset button on the left side labeled “HW RST”.   Hold this button down for at least 5 seconds.  The screen should fully populate temporarily.

You will have to reset the day and time.


If this does not correct the problem, proceed to a Software Reset



Software Reset:


These steps will erase your custom program settings, so write down all temperatures and start times before you begin.


Look for a small black round reset button  on the right side labeled “SW RST”   Hold this button down for at least 5 seconds.  The screen should fully populate temporarily.

Place thermostat front cover back on the wall.