Honeywell HM512W1005 - Troubleshooting

OPERATION
AND SERVICE
TrueSTEAMHumidicationSystem69-2285EF—01
30
No. of
Service LED
Blinks
Fault Description Auto-Recoverable? Steps to Fix
(Performed Only By Professional HVAC Technician)
1 Water/Heater
temperature
sensorfailed.
Yes, TrueSTEAM
willresetiffault
no longer exists
inonehour.
UnplugTrueSTEAMandplugbackin.1.
PresstheGobutton.2.
Iffaultreturns,replaceTrueSTEAM.3.
2 Watersensorsfailed. Yes, TrueSTEAM
willresetiffault
no longer exists
inonehour.
UnplugTrueSTEAMandremovecover.1.
Disconnectwaterlevelsensorwiring.Removescreenandlift2.
snap-hingeclamp.
Removewatersensorassembly.3.
Replacewatersensor(#50027998-001).4.
ReassemblethesensorassemblyintheTrueSTEAM.Replace5.
snap-hinge,thenre-attachandsecurethecover.
PlugTrueSTEAMbackinandpresstheGobuttontoreset.6.
3 Failuretolltank
withwater.
Yes,systemwill
returnto“Ready”
if fault no longer
exists in
threehours.
Ensureinletwaterison.1.
Checkforleaksaroundthetanksealandsolenoid.2.
Turnoffwatersupplyandreplacethewaterlter(s).3.
Press and hold the Go button until the red Service light 4.
turnsoff.
Iftankstillfailstoll,presstheDrainbutton.(Iftankfailsto5.
drain,unplugTrueSTEAMandmakesurewaterintankiscool
beforeproceeding).
Followthetankcleaningsteps.6. See “Manual Cleaning Cycle”
on page 24.Ensureyouhavearmgriponthetankbefore
releasingthetank,especiallyifwaterispresent.
Clearanyexcessdebrisfromthetank’sbottomoriceto 7.
thesolenoid.
ReassembletankandplugTrueSTEAMbackin.PresstheGo8.
buttontoreset.
Ifwaterstillfailstollintothetank,replacethesolenoidvalve9.
(#50027997-001).
Troubleshooting
TrueSTEAMhasinternalsystemdiagnosticsthatmonitoroperation,maintenanceschedules,andfaults.Ifa
systemfaultisdetected,TrueSTEAMwillattempttorecoveruptovetimesina24-hourperiod.
IfTrueSTEAMisunabletorecoverbyitselfwithin24hours,theredServicelightblinksinaseriesthat•
indicatesthefaultdetected.
Refertothetablebelowforthefaultindicated,alongwiththestepstoxTrueSTEAM.•
PressandholdtheGobuttonuntiltheServicelightturnsoff.•