ICM Controls SC 3006 Installation, operation & application manual - Troubleshooting
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Symptom
Remedy
Nodisplay
Checkfor24VACatthermostat;displayisblankwhen24VACisnotpresent
Systemfandoesnotcomeonproperly
Verifywiringiscorrect,checkGas/Electricswitchposition
Allthermostatbuttonsareinoperative
Verify24VACispresent;unitlocksoutwhen24VACisnotpresent
Noresponsewithfirstbuttonpress
Firstbuttonpressactivatesbacklightonly
Programscheduleactivatesatthewrong
time
Checktime(AM/PM)setonthermostat(see“SettingtheTime,”Page14)
Thermostatturnsonandofftoofrequently
Adjusttemperaturedifferential(see“ConfigurationModeSetting2,”Page8)
Thermostatdoesnotfollowprogram
Verifyitisoperatinginprogrammode(PROGdisplays);checktime(AM/PM);
checkifin2hourprogramoverride
Fanrunscontinuously
CheckFanOn/Autoswitch,fanrunscontinuouslyinOnposition
Statusindicatorlightnotonduringcall
Turnstatusindicatorfunctionon
(see“ConfigurationModeSetting10,”Page10)
Roomtemperatureisnotcorrect
Verifywallholeforwiresispluggedwithputtyorinsulation,calibratethermostat
(see“ConfigurationModeSetting8,”Page10).
Ifremotesensorisused,checkS1andS2terminalconnections
LOCdisplayswhenanybuttonispressed
Thermostathasthebuttonlockoutfunctionactivated(see“LockoutFunction,”
Page17)
––ondisplayinsteadofroomtemperature
CheckforabadconnectionatS1andS2terminals,ifused
Problemnotlistedabove
PressResetbuttononce*
*ResetButtonFunction Time,dayandmodechangedtolastsavedsettings(savedafterpowerlossorwhenexiting
programsetup),configurationandprogramsettingsareunchanged.