User Guide

IOM-WR-Radiant_Thermostat-59324 4of6
 

ThethermostatfailedtoreadtheProgrammableSettingsfrom
memoryandhasreloadedthefactorydefaultsettings.The
thermostatstopsnormaloperationuntilallProgrammableSettings
arecheckedexcepttoprovidefreezeprotection.
Room

Thebuilt-inairtemperaturesensorhasanopencircuitfault.
Donotconfusethiserrorwiththeauxiliaryroomsensorshort
circuiterror.
Thiserrorcannotbefieldrepaired.ContactyourwholesalerorWatts
Radiantsalesrepresentativefordetailsonrepairprocedures.
Room

Thebuilt-inairtemperaturesensorhasashortcircuitfault.
Donotconfusethiserrorwiththeauxiliaryroomsensorshort
circuiterror.
Thiserrorcannotbefieldrepaired.ContactyourwholesalerorWatts
Radiantsalesrepresentativefordetailsonrepairprocedures.

Theauxiliarysensorhasanopencircuit.Checkforlooseor
damagedwires.Locateandrepairtheproblemasdescribed
intheSensorTestingsectionofthisbrochure.Theerrorclears
aftertheauxiliarysensorfaultiscorrected.Iftheauxiliarysensor
wasintentionallyremoved,powerthethermostatdownandup
tocleartheerror.

Theauxiliarysensorhasashortcircuit.Checkfordamaged
wires.LocateandrepairtheproblemasdescribedintheSensor
Testingsectionofthisbrochure.Theerrorclearsaftertheauxiliary
sensorfaultiscorrected.

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