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Troubleshooting
Symptom SuspectedFault Suggestedremedy
Temperaturedisplay
seemsinaccurate
Airfromthe wallcavitymaybeleakinginto the
rearofthethermostat/sensorenclosure.
Plugholesinwallwithtapetopreventleaks
External heat or cool source such as lamps,
televisions or drafts from open doors affecting
theaccuracyofsensor.
Move lamps, vents or other sources of
abnormaltemperatureawayfromsensors
Sensorcalibrationmaysettingareincorrect Call Smart Temp service for information on
calibratingtheairtemperaturesensor
Aremotetemperaturesensormaybeinuse. The temperature is NO T being measured at
thethermostatlocation;theremotelocation
mayhaveadifferenttemperature.
“Locked”appearsonLCD
andheatingorcoolingwill
notoperate.
Thisisnotafault.
Outsideairtemptohightopermitheating
Outsideairtemptolowtopermitcooling.
Heatingand/orcooling disabledto conserve
energy. The heating or cooling function can
been disabled when the outside
temperatureiswarmor coolenoughtonot
warranttheuseoftheA/Csystem.
Fanspeedchanges
frequently
Thismaynotbeafault
YourChameleonischoosingthemostenergy
efficient fan speed for the current
conditions.
Try selecting a speed manually with the fan
button.
Wallcontrollerhasno
display
Checkairconditioningmainfuse ResethomeA/Cfuse
CallSmartTempservice
FaultyWiring,fuseorChameleon CallSmartTempservice
Heating,CoolingorAir
ConditioningSystem
seemstorunsallnight.
Heatingandorcoolingtemperaturessetforun‐
achievablevalue.
Set a lower heat temperature and/or a
higher cooling temperature. Review manual
onsettingtemperatures
HeatCoolSystemsettoHeatPumpMode InstallersettingIncorrect–callforservice
FansettoFanONmode ChangefanmodetoAuto
SpannerSymbolflasheson
LCD
Installer has left the thermostat in
“Commissioningmode”
Contact your installer and request
“commissioningmode”bedisabled.
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