39 69-2715EF—01

If you have difficulty with your thermostat, please try the following suggestions.

Most problems can be corrected quickly and easily.

Display is
blank
• Checkcircuitbreakerandresetifnecessary.
• Makesurepowerswitchatheatingandcoolingsystemison.
• Makesurefurnacedoorisclosedsecurely.
“Wait” appears
on the screen
• Compressorprotectionfeatureisengaged.Wait5minutesforthesystemto
restart safely, without damage to the compressor.
Button on
lower right of
screen is blank
• Thisbuttonwillremainblankunlessthefurnacefilter,humidifierpad,or UV
bulb change reminder is activated or if an outdoor temperature sensor is
wired to your thermostat.
Red light is on •IfthermostatisinEmergencyHeat modetheredlightisnormal.Itshows
that the thermostat is in emergency heat mode.
• IfthermostatisnotinEmergencyHeatmode,contact aqualifiedservice
contractor for repair.
Troubleshooting