WaterLogic WL350 Operating instructions

WL350Manual Page76–Revision11‐21‐2018

HOTWATERTROUBLESHOOTINGINDEX



1. HotWaterisnotHot86°±‐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. HotWaterisnotHot86°±‐1.5°C(187°±5°F)



TheHotTemperaturesetpointis85°C(185°F)andiscontrolledbyathermostatonthesideofthe

HotTank.



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).



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.



TheWL350WaterTreatmentSystemdoesNOThaveExtraHotcapabilityandthemaximumhot

temperatureis87°C(189°F).



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.



PossibleReason Solution

NoPower

CheckthattheRedHeater&Compressorswitchison.



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.



Ifunitstilldoesnotheatproceedto“NopowertoHeaterelements”below.



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



Overloadisasafety

featuretoensurethe

tankdoesnot

overheat.

Overloadwill“click”whenpushed.Theoverloadisautomaticallyresetwhen

pressed.



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



Inspectconnectorfordiscoloration.

Ifthereisnodiscoloration,contactWaterlogic

TechnicalDepartment.



Thermostator

overload“open”on

HotTank

TurnPoweroff.CheckOHM’sresistanceacrossterminalsoneach

ThermostatandOverloadseparately.



GoodcomponentswillindicateaclosedcircuitorzeroOHM’sonthemeter.



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.



Hottanklifeis3‐5years,dependingonusage.



*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.



HotTankmustbeemptyifyouarecheckingforcontinuity.



ReplaceHotTankasnecessary.

ImproperJumper

Settings



Theunithasbeenchangedtoacold/ambientsetting(JP9hasbeenmoved

fromPin1andPin2).



VerifythatJumperPinsarelocatedproperlyforHotWaterOption.



SeeChangingHotWaterModetoAmbientWaterInstructionsincluded

furtherbelowinthisTroubleshootingSection





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.



UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.





WL350WaterTreatmentSystemscomeswiththe

EnergySavingSleepMode“ON”



PCBJumperJP7inthe"ON"position(Pin1and2)



DeactivatetheEnergySavingSleepModebymoving

PCBJumperJP7tothe"OFF"position(Pins2and3).



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



 

1.



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.



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.



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.



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.



WL350Manual Page80–Revision11‐21‐2018

6.

Fordemonstrativepurposes,photosbelowhaveloweredthehottankfromtheunit.



Presstheresetbutton



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



TheHotandColdtanksmustbefilledwithwaterBEFOREturningonthe

RedHeaterandCompressorSwitch.



11. Verifythecoolerisfullyoperationalbeforeinstallingitatthecustomers’site.





WL350Manual Page81–Revision11‐21‐2018

CHANGINGHOTWATERMODETOAMBIENTWATER



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.



UnplugPowerCordandremoveTopCovertoaccessEnergySaverPCB.



WL350WaterTreatmentSystemscomeswithHotand

ColdWaterfactorysettings.



PCBJumperJP9inpositions‐Pin1and2



ChangetoAmbientandColdbymovingPCBJumper

JP9topositions–Pin2and3



EnergySaverPCB–P/NEN‐6131–WLCPPN20‐0075

12

1 2 3

PinNumbers

2 3

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