WaterLogic WL350 Istruzioni operative
WL350Manual Page76–Revision11‐21‐2018
HOTWATERTROUBLESHOOTINGINDEX
1. HotWaterisnotHot86°±‐1.5°C(187°±5°F)
Also includes related instructions for:
Disabling Energy Star Sleep Mode
Resetting the Hot Tank Overload or High Safety Limit
Programming “Changing Hot Water Mode to Ambient Water Mode”
1. HotWaterisnotHot86°±‐1.5°C(187°±5°F)
TheHotTemperaturesetpointis85°C(185°F)andiscontrolledbyathermostatonthesideofthe
HotTank.
ThereisaresettableoverloadorhighlimitsafetyabovethethermostatonthesideoftheHotTank
thatwilltriptopreventdamagetotheunitifthetankisdryheated(turnedonwithoutwaterinit).
TheWL350WaterTreatmentSystemisprogrammabletomakeCold/Ambientwater–referto
DisablingSleepModeinstructionsincludedfurtherbelowinthisTroubleshootingSection.
TheWL350WaterTreatmentSystemdoesNOThaveExtraHotcapabilityandthemaximumhot
temperatureis87°C(189°F).
Ittypicallytakes10minutesforthe500Wtoheatthe1.6Liter(0.4Gallon)ofroomtemperature
(ambient)watertothe85°C(185°F)setpoint.
PossibleReason Solution
NoPower
CheckthattheRedHeater&Compressorswitchison.
TurnRedHeater&CompressorSwitchon.
I=ON
IsunitinEnergyStar
SleepMode?
Ifnowaterhasbeendispensedfor3ormorehours,unitgoesintosleep
mode.Dispensehotwater,wait5minutes,checktemperature.
Ifunitstilldoesnotheatproceedto“NopowertoHeaterelements”below.
IfunitdoesheatbutyouwouldliketoDisableSleepMode,refertothe
instructionsincludedfurtherbelowinthisTroubleshootingSection
HotTankOverload
Tripped
Overloadisasafety
featuretoensurethe
tankdoesnot
overheat.
Overloadwill“click”whenpushed.Theoverloadisautomaticallyresetwhen
pressed.
SeeResettingtheHotTankOverloadorHighLimitSafetyInstructionsthat
areincludedfurtherbelowinthisTroubleshootingSection
WL350Manual Page77–Revision11‐21‐2018
EnergySaverPCB
RelayBoard
ConnectorBad
Inspectconnectorfordiscoloration.
Ifthereisnodiscoloration,contactWaterlogic
TechnicalDepartment.
Thermostator
overload“open”on
HotTank
TurnPoweroff.CheckOHM’sresistanceacrossterminalsoneach
ThermostatandOverloadseparately.
GoodcomponentswillindicateaclosedcircuitorzeroOHM’sonthemeter.
Replacecomponentsasnecessary.
Looseorimproperly
connectedwire(s)to
theHeatingElement
/HotTank.
Visuallyinspectwireleadsgongtothehottank;confirmproperconnections
totheheatingelements.
Hottanklifeis3‐5years,dependingonusage.
*Typically,dealersswapouttheHotTankatsite,takebacktotheshopto
repair.
HeatingCoilNot
Heating
TurnPoweroff;Drainhottank;Usemulti‐metertocheckHeaterElementfor
approximately26OHM’sresistance.
HotTankmustbeemptyifyouarecheckingforcontinuity.
ReplaceHotTankasnecessary.
ImproperJumper
Settings
Theunithasbeenchangedtoacold/ambientsetting(JP9hasbeenmoved
fromPin1andPin2).
VerifythatJumperPinsarelocatedproperlyforHotWaterOption.
SeeChangingHotWaterModetoAmbientWaterInstructionsincluded
furtherbelowinthisTroubleshootingSection
WL350Manual Page78–Revision11‐21‐2018
DISABLINGENERGYSAVINGSLEEPMODE
AllWL350WaterTreatmentSystemscomefromthefactorywithEnergySavingSleepMode
engagedtomeettheEnergyStarCertificationrequirements.EnergySavingSleepModedisables
theheatercircuitiftheunithasnotbeenusedforacontinuous3hourorlongerperiod.
Selectinganybutton"wakesup"theWL350WaterTreatmentSystemandturnstheheater
circuitbackon.Thehottankwilltypicallytakelessthan10minutestoheatthewaterfrom
ambienttothe85°C(185°F)setpoint.
UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.
WL350WaterTreatmentSystemscomeswiththe
EnergySavingSleepMode“ON”
PCBJumperJP7inthe"ON"position(Pin1and2)
DeactivatetheEnergySavingSleepModebymoving
PCBJumperJP7tothe"OFF"position(Pins2and3).
EnergySaverPCB–P/NEN‐6131–WLCPPN20‐0075
PinNumbers
1 2 3
2 3
1 2
WL350Manual Page79–Revision11‐21‐2018
RESETTINGTHEHOTTANKOVERLOADORHIGHLIMITSAFETY
1.
RedCompressor/HeaterSwitchmustbeintheO=OFFposition
2. UnplugthePowerCordfromrearofWL350WaterTreatmentSystem.
3.
TowerModel:RemovetheLowerFrontPanelbyremovingthePhillipsHeadScrews
underneaththeLowerFrontPanel.
CounterTopModel:RemovetheSidePanelbyremovingPhillipsHeadScrewsfrom
SidePanel.
4.
LocatetheProtectiveMetalBoxontherearoftheHot
Tank.Lookingthroughthecondensercoilsontherear
oftheunit,youwillseetheHotTanklocatedonthe
right‐handside.
5.
FromthefrontoftheWaterTreatmentSystem,reach
upbehindthehottankandtakeholdoftheprotective
metalboxcoveringthethermostatandoverloadonthe
hottank.
TherearenutsthatsecuretheProtectiveMetalBoxto
theHotTank,arelooseenoughtoallowyoutoremove
theProtectiveMetalBox.
Ifthenutsonthemetalboxaretootight,loosenthe
nutssecuringtheHotTanktotheupperbaseofthe
WL350WaterTreatmentSystemunitandlowerthe
HotTanksoyoucanremovetheProtectiveMetalBox.
WL350Manual Page80–Revision11‐21‐2018
6.
Fordemonstrativepurposes,photosbelowhaveloweredthehottankfromtheunit.
Presstheresetbutton
7.
ReattachtheProtectiveMetalBoxbydepressingthetop
flapoftheProtectiveMetalBoxsoitsnapsbackintoits
originalpositionontheHotTank.
8. ReplacetheLowerFrontPanel.
9. PluginthePowerCord.
10.
TurnontheRedCompressor/HeaterSwitchI=ONposition
TheHotandColdtanksmustbefilledwithwaterBEFOREturningonthe
RedHeaterandCompressorSwitch.
11. Verifythecoolerisfullyoperationalbeforeinstallingitatthecustomers’site.
WL350Manual Page81–Revision11‐21‐2018
CHANGINGHOTWATERMODETOAMBIENTWATER
WL350WaterTreatmentSystemscomeswithsettoHot/Cold,whichcanbechangedto
Ambient/Coldsettings.Onthe
EnergySaverPCB,
MovetheJumperonJP9fromPins1and2to
Pins2and3.
UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.
WL350WaterTreatmentSystemscomeswithHotand
ColdWaterfactorysettings.
PCBJumperJP9inpositions‐Pin1and2
ChangetoAmbientandColdbymovingPCBJumper
JP9topositions–Pin2and3
EnergySaverPCB–P/NEN‐6131–WLCPPN20‐0075
12
1 2 3
PinNumbers
2 3
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