RCT8102A Series
21 69-2636ES—03
In case of difficulty
Heating or cooling
system does not
respond
• PressSYSTEM button to set system to Heat. Make sure the temperature is
set higher than the Inside temperature.
• PressSYSTEM button to set system to Cool. Make sure the temperature is
set lower than the Inside temperature.
• Checkcircuitbreakerandresetifnecessary.
• Makesurepowerswitchatheating&coolingsystemison.
• Makesurefurnacedoorisclosedsecurely.
• Wait5minutesforthesystemtorespond.
“Cool On” or
“Heat On” is
flashing
• Compressor protection feature is engaged. Wait 5 minutes for the system to
restart safely, without damage to the compressor (see page 16).
Other problems • Iftheabovemeasuresdonotresolvetheproblem,checktheInCaseof
Difficultysectioninyourthermostat
Installation Guide
.