WaterLogic WL350 Operating instructions

WL350Manual Page76–Revision11‐21‐2018
HOTWATERTROUBLESHOOTINGINDEX
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1. HotWaterisnotHot86°±‐1.5°C(187°±5°F)
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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”
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1. HotWaterisnotHot86°±‐1.5°C(187°±5°F)
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TheHotTemperaturesetpointis85°C(185°F)andiscontrolledbyathermostatonthesideofthe
HotTank.
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ThereisaresettableoverloadorhighlimitsafetyabovethethermostatonthesideoftheHotTank
thatwilltriptopreventdamagetotheunitifthetankisdryheated(turnedonwithoutwaterinit).
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TheWL350WaterTreatmentSystemisprogrammabletomakeCold/Ambientwater–referto
DisablingSleepModeinstructionsincludedfurtherbelowinthisTroubleshootingSection.
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TheWL350WaterTreatmentSystemdoesNOThaveExtraHotcapabilityandthemaximumhot
temperatureis87°C(189°F).
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Ittypicallytakes10minutesforthe500Wtoheatthe1.6Liter(0.4Gallon)ofroomtemperature
(ambient)watertothe85°C(185°F)setpoint.
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PossibleReason Solution
NoPower
CheckthattheRedHeater&Compressorswitchison.
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TurnRedHeater&CompressorSwitchon.
I=ON
IsunitinEnergyStar
SleepMode?
Ifnowaterhasbeendispensedfor3ormorehours,unitgoesintosleep
mode.Dispensehotwater,wait5minutes,checktemperature.
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Ifunitstilldoesnotheatproceedto“NopowertoHeaterelements”below.
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IfunitdoesheatbutyouwouldliketoDisableSleepMode,refertothe
instructionsincludedfurtherbelowinthisTroubleshootingSection
HotTankOverload
Tripped
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Overloadisasafety
featuretoensurethe
tankdoesnot
overheat.
Overloadwill“click”whenpushed.Theoverloadisautomaticallyresetwhen
pressed.
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SeeResettingtheHotTankOverloadorHighLimitSafetyInstructionsthat
areincludedfurtherbelowinthisTroubleshootingSection

WL350Manual Page77–Revision11‐21‐2018
EnergySaverPCB
RelayBoard
ConnectorBad
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Inspectconnectorfordiscoloration.
Ifthereisnodiscoloration,contactWaterlogic
TechnicalDepartment.
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Thermostator
overload“open”on
HotTank
TurnPoweroff.CheckOHM’sresistanceacrossterminalsoneach
ThermostatandOverloadseparately.
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GoodcomponentswillindicateaclosedcircuitorzeroOHM’sonthemeter.
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Replacecomponentsasnecessary.
Looseorimproperly
connectedwire(s)to
theHeatingElement
/HotTank.
Visuallyinspectwireleadsgongtothehottank;confirmproperconnections
totheheatingelements.
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Hottanklifeis3‐5years,dependingonusage.
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*Typically,dealersswapouttheHotTankatsite,takebacktotheshopto
repair.
HeatingCoilNot
Heating
TurnPoweroff;Drainhottank;Usemulti‐metertocheckHeaterElementfor
approximately26OHM’sresistance.
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HotTankmustbeemptyifyouarecheckingforcontinuity.
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ReplaceHotTankasnecessary.
ImproperJumper
Settings
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Theunithasbeenchangedtoacold/ambientsetting(JP9hasbeenmoved
fromPin1andPin2).
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VerifythatJumperPinsarelocatedproperlyforHotWaterOption.
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SeeChangingHotWaterModetoAmbientWaterInstructionsincluded
furtherbelowinthisTroubleshootingSection
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WL350Manual Page78–Revision11‐21‐2018
DISABLINGENERGYSAVINGSLEEPMODE 
AllWL350WaterTreatmentSystemscomefromthefactorywithEnergySavingSleepMode
engagedtomeettheEnergyStarCertificationrequirements.EnergySavingSleepModedisables
theheatercircuitiftheunithasnotbeenusedforacontinuous3hourorlongerperiod.
Selectinganybutton"wakesup"theWL350WaterTreatmentSystemandturnstheheater
circuitbackon.Thehottankwilltypicallytakelessthan10minutestoheatthewaterfrom
ambienttothe85°C(185°F)setpoint.
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UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.
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WL350WaterTreatmentSystemscomeswiththe
EnergySavingSleepMode“ON”
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PCBJumperJP7inthe"ON"position(Pin1and2)
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DeactivatetheEnergySavingSleepModebymoving
PCBJumperJP7tothe"OFF"position(Pins2and3).
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EnergySaverPCB–P/NEN‐6131–WLCPPN20‐0075
PinNumbers
1 2 3
2 3
1 2

WL350Manual Page79–Revision11‐21‐2018
RESETTINGTHEHOTTANKOVERLOADORHIGHLIMITSAFETY
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 
1.
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RedCompressor/HeaterSwitchmustbeintheO=OFFposition
2. UnplugthePowerCordfromrearofWL350WaterTreatmentSystem.
3.
TowerModel:RemovetheLowerFrontPanelbyremovingthePhillipsHeadScrews
underneaththeLowerFrontPanel.
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CounterTopModel:RemovetheSidePanelbyremovingPhillipsHeadScrewsfrom
SidePanel.
4.
LocatetheProtectiveMetalBoxontherearoftheHot
Tank.Lookingthroughthecondensercoilsontherear
oftheunit,youwillseetheHotTanklocatedonthe
right‐handside.
5.
FromthefrontoftheWaterTreatmentSystem,reach
upbehindthehottankandtakeholdoftheprotective
metalboxcoveringthethermostatandoverloadonthe
hottank.
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TherearenutsthatsecuretheProtectiveMetalBoxto
theHotTank,arelooseenoughtoallowyoutoremove
theProtectiveMetalBox.
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Ifthenutsonthemetalboxaretootight,loosenthe
nutssecuringtheHotTanktotheupperbaseofthe
WL350WaterTreatmentSystemunitandlowerthe
HotTanksoyoucanremovetheProtectiveMetalBox.
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WL350Manual Page80–Revision11‐21‐2018
6.
Fordemonstrativepurposes,photosbelowhaveloweredthehottankfromtheunit.
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Presstheresetbutton
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7.
ReattachtheProtectiveMetalBoxbydepressingthetop
flapoftheProtectiveMetalBoxsoitsnapsbackintoits
originalpositionontheHotTank. 
8. ReplacetheLowerFrontPanel.
9. PluginthePowerCord.
10.
TurnontheRedCompressor/HeaterSwitchI=ONposition
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TheHotandColdtanksmustbefilledwithwaterBEFOREturningonthe
RedHeaterandCompressorSwitch.
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11. Verifythecoolerisfullyoperationalbeforeinstallingitatthecustomers’site.
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WL350Manual Page81–Revision11‐21‐2018
CHANGINGHOTWATERMODETOAMBIENTWATER
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WL350WaterTreatmentSystemscomeswithsettoHot/Cold,whichcanbechangedto
Ambient/Coldsettings.Onthe EnergySaverPCB, MovetheJumperonJP9fromPins1and2to
Pins2and3.
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UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.
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WL350WaterTreatmentSystemscomeswithHotand
ColdWaterfactorysettings.
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PCBJumperJP9inpositions‐Pin1and2
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ChangetoAmbientandColdbymovingPCBJumper
JP9topositions–Pin2and3
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EnergySaverPCB–P/NEN‐6131–WLCPPN20‐0075
12
1 2 3
PinNumbers
2 3