Honeywell PRESTIGE THX9321 - Troubleshooting Common Difficulties; Resolving Blank Screen Issues; Fixing Unreadable Screen Problems; Addressing System Response Failures

OperatingManua/
in case of difficulty
If you have difficulty with your thermostat, please try the suggestions below. Most
problems can be corrected quickly and easily.
o
o
o
Screenis
difficult to
read
Heating
or cooling
systemdoes .
not respond
o
o
o
o
Checkcircuitbreakerand reset if necessary.
Makesure powerswitchatheating& coolingsystemison.
Makesure furnacedooris closedsecurely.
Tochangethe screenbrightnessor color,see backlightoptionsin the Preferencesmenu
(seepage21).
At 2 am eachday,Prestigethermostatschangescreencolorsfor an hour,to preventburn-
in.Touchthe screenatany timeto restorepre-setscreencolors.
PressSYSTEMtoset systemto Heat. Makesure the temperatureisset higherthan the
Insidetemperature.
PressSYSTEMtoset systemto Cool.Makesure the temperatureis set lowerthan the
Insidetemperature.
Checkcircuitbreakerand reset if necessary.
Makesure powerswitchatheating& coolingsystemison.
Makesure furnacedooris closedsecurely.
If"WaitingForEquipment"isdisplayed,thecompressorprotectiontimeris on.Wait5
minutesfor the systemto restart safely,withoutdamagingthe compressor.
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