WaterLogic WL350 Betriebsanleitung
WL350Manual Page59–Revision11‐21‐2018
DISPENSETROUBLESHOOTINGINDEX
1. Irregular / Intermittent Dispensing from One Side
2. Hot Water Intermittently Forced Out Through the Faucet, or a Dual Stream Out of the
Faucet
3. Dispensing won't stop when not holding the Dispensing Button
4. Steady Drip out of Faucet
5. Hot Water or Steam coming out of both the Faucet and the Vent Hole
6. Hot Water coming out of Faucet Vent Hole
7. Low Flow of Water
8. Restricted Flow of Hot Water
9. Hot Water Drip out of Faucet
10. Dispenses Hot and Cold Water at the same time
11. No cold water available
12. Water does not dispense from unit
13. No Water is Dispensing from One Side – Cold or Hot
14. Cold Water dispenses from Faucet and Vent Outlet Simultaneously
15. Small amount of water periodically dispenses from faucet automatically
16. Dispense Buttons Stick
17. Water Stream is at an Angle
18. Run-On - Water continues to dispense out of faucet after releasing the dispense button
Also includes related instruction for Hot Tank Descaling
WL350Manual Page60–Revision11‐21‐2018
1. Irregular/IntermittentDispensingfromOneSide
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
theWL350WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceof
theunittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.
Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithout
waterpressuretotheunit?Listenforsolenoidtoactivate,not
button“click”.
Adjustwaterpressureto40‐60psi.
Looseorbadconnectionon
theFrontDispensingPCBor
SolenoidConnector
Checkthattheyareconnectedproperlyandtightened.
Solenoid
IfboththeWaterPressureandPCBhavebeenruledout,thenitis
theSolenoid.
ReplaceSolenoid.
Dispensingbuttonisbrokenon
PCB
CheckPCBforlooseordamagedbutton.ReplacePCBas
necessary.
2. HotWaterIntermittentlyForcedOutThroughtheFaucet,oraDualStreamOutof
theFaucet
PossibleReason Solution
Mineraldepositsonthe
expansionslotinsidethehot
tankventchamberwhich
blocksthenormalpathof
watertoexpand.
DescaleHotTank
SeeHotTankDescalingInstructionsthatareincludedfurther
belowinthisTroubleshootingSection.
WL350Manual Page61–Revision11‐21‐2018
3. DispensingWon’tStopWhenNotHoldingtheDispensingButton
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
theWL350WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceof
theunittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.
Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithout
waterpressuretotheunit?Listenforsolenoidtoactivate,not
button“click”.
Adjustwaterpressureto40‐60psi.
BadDisplayPCB ReplaceMainPCB
PartNumber:WLCPPN12‐8355/EN‐6126‐L00‐00
DebrisintheSolenoid InspectSolenoidfordebrisandcleanoutasneeded.
DispensingButtonStuck
DirtorForeignmaterialisfillingthegaparoundthepush‐buttons.
Inspectthepushbuttonsandcleansurroundingarea.Inspect
faucetassemblyinsidetheunitandcleanasnecessary.
4. SteadyDripOutofFaucet
PossibleReason Solution
DebrisinSolenoid InspectSolenoidfordebrisandcleanoutasneeded.
5. HotWaterorSteamComingoutofboththeFaucetandVentHole
PossibleReason Solution
Impropertubingattachment
fromtheHotTanktoFaucetor
viceversa.
CheckthatthetubingisconnectedfromHotTankOutletsto
correctFaucetattachments.Connecttubingtooutletsas
needed.
WL350Manual Page62–Revision11‐21‐2018
6. HotWaterComingoutofFaucetVentHole
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psiforthe
WL350WaterTreatmentSystemto
operateproperly.
Thecorrectinputwaterpressureiscriticaltothe
performanceoftheunittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawater
pressuregauge.
Additionalmethodofverificationistoturnoffwatertounit
andpressthedispensebutton.Doesthesolenoidopen
withoutwaterpressuretotheunit?Listenforsolenoidto
activate,notbutton“click”.
Adjustwaterpressureto40‐60psi.
Impropertubingattachmentfrom
thetanktofaucetorviceversa.
Verifytubingisconnectedproperlyfromtankoutletsto
correctfaucetattachments.
HotTankoutletholeisscaledover.
InspectandDescaleTankasneeded.
SeeHotTankDescalingInstructionsthatareincluded
furtherbelowinthisTroubleshootingSection.
Expansionchamberisnotsealed
properly. ReplacetheHotTank.
WL350Manual Page63–Revision11‐21‐2018
7. LowFlowofWater–RatedServiceFlowis1.89Liters(0.5gallons)perMinute
PossibleReason Solution
DetermineFlowofWater
RatedFlowRateis1.89Liters(0.5gallons)perminute.
Checkflowratebydispensingintoacontainertomeasure
foroneminuteandmeasuretheamountofwaterthatwas
dispensed.
FeedLinestoosmall
Feedlinescanrestrictflowifrunlongdistancesfromthe
supply.Itmaybenecessarytoincreasethesupplyline(e.g.,
use3/8”feedlinevs.¼”.
Elbowsandturnsinthefeed
line Minimizeelbowsandturnsinthefeedline.
Filters
Filterswithhighpressuredropduetofoulingorjustby
design.Changefiltersmorefrequentlyorgotohigher
micronsizefilterforlocalwaterconditions.
Restrictions
Followflowpathtoensuretherearenoundiscovered
restrictionsduetodebrisormalfunctioningvalves,including
thesupplyvalveatthesource.
BoosterPump Addaboosterpumptothesupplylineifthefeedisslower
thanneeded.
WL350Manual Page64–Revision11‐21‐2018
8. RestrictedFlowofHotWater
PossibleReason Solution
Partiallyclosedwatersupplyvalveto
theunit. Openwatersupplyvalve.
HotTankoutletholeisscaledover.
DescaleTank.
SeeHotTankDescalingInstructionsthatareincluded
furtherbelowinthisTroubleshootingSection.
Tubingiscreasedorhasa“kink”init. Inspectandreplacetubingasnecessary.
Faucetnipplescreenmeshhas
obstruction(s)
Unscrewfaucetnipplefromfaucetandremoveany
obstruction(s)fromscreenmesh.
ExhaustedFilter ReplacetheFilter
SolenoidconnectiontotheDisplay
PCB
Turnpoweroff;unplugtheWL350WaterTreatment
Systemandvisuallyinspectsolenoidconnectionsintothe
DisplayPCB.Verifythesolderingpointsonconnectionsare
secureintotheboard.
RemovethePCBtoinspectthefrontoftheboard.
SolenoidValveisMalfunctioning Inspectvalvecomponentsforproperfunction.Replaceas
necessary.
WL350Manual Page65–Revision11‐21‐2018
9. HotWaterDripoutofFaucet
PossibleReason Solution
SmallOutletVentHolesusceptibletoscale
buildup.
DescaleTank.
SeeHotTankDescalingInstructionsthatareincluded
furtherbelowinthisTroubleshootingSection.
AllWaterlogicHotTankshaveabuiltinVentor
ExpansionChamberinthetopofthetankexceptfor
WL270(GF)units.
TheVentChamberallowsforexpansionofthewater
whenitisheated.
Thechambersareseparatedbyawelded‐intank
baffle.
WateralwaysflowsintothebottomoftheHotTank
andoutthetoptotheFaucet.
TheHotTankOutletTubehasaRestrictorinitsbase.
Thisensuresthereservoirisalwaysfullbyallowing
morewaterinthanout.
ThereisasmallholeinthesideoftheHotTankOutlet
TubethatallowsairandwatertopassintotheVent
Chamberasitisheated.
WaterintheVentChamberissuctionedbackthrough
theOutletTubeventholewhenwaterisdispensed.
ExpansionofwaterasitisheatedintheReservoirwill
pushthewateroutthefaucetwhentheoutlettube
ventholebecomespluggedwithdebrisorscale.
ThesmallOutletVentHoleissusceptibletoscalebuild
upandisakeyindicatorthatdescalingisrequired.
ItiscriticaltodescaletheHotTankthroughthevent
lineandoutletlineonaregularbasistopreventthis
problem.
Descalingthroughtheinletand/oroutletlinesonly
willnotcleantheventchamberandoutletventhole
properly.
WL350Manual Page66–Revision11‐21‐2018
10. DispensesHotandColdWateratthesametime
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
theWL350WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceofthe
unittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.
Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.
Adjustwaterpressureto40‐60psi.
HotorColdsolenoidisstuck
open.
RemoveTopCover.
CheckHotSolenoid:Dispensecoldwaterandvisuallyinspecttubing
forwaterflowfrombothtanks.
CheckColdSolenoid:DisconnectElbowfromoutletofCold
Solenoid.Selecthotwateranddispense(quicklyreleasing
DispensingButtontoavoidmuchwatercomingoutofColdSolenoid.
ReplaceSolenoidasnecessary.
WL350Manual Page67–Revision11‐21‐2018
11. NoColdWaterAvailable
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
theWL350WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceofthe
unittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.
Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.
Adjustwaterpressureto40‐60psi.
ClosedWaterSupplyValve OpentheWaterSupplyValve
ColdWaterSolenoidValve
malfunction Inspectthevalvecomponentsforproperfunctionality.
RedHeater&Compressor
Switchonunitisoff.
Ifwaterisdispensingatroomtemperature:
TurnRedHeater&CompressorSwitchon.
I=ON
Looseconnection(s)onthe
DisplayPCB
Turnpoweroff;unplugtheWL350WaterTreatmentSystemand
visuallyinspectsolenoidconnectionsintotheDisplayPCB.Verify
thesolderingpointsonconnectionsaresecureintotheboard.
RemovethePCBtoinspectthefrontoftheboard.
ExhaustedFilter Replacefiltersasneeded.
WL350Manual Page68–Revision11‐21‐2018
12. WaterdoesnotdispensefromUnit
PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
theWL350WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceofthe
unittoallowsolenoidstoopen.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.
Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.
Adjustwaterpressureto40‐60psi.
Closedwatersupplyvalve Openthewatersupplyvalve.
Theunitisnotproperly
pluggedintoelectricaloutlet
Checkelectricaloutletconnection,orforblowncircuitbreaker.
RedHeater&Compressor
Switchbuttononunitisinthe
offposition
TurnRedHeater&CompressorSwitchon.
I=ON
15AmpFuseBlown Replacethe15AmpFuseasneeded.
WaterispresentintheBottom
Tray,causingtheLeak
Detectiontotrigger
RemovetheTopCoverandFrontPanel.Tiptheunitslightlyto
drain,dryBottomTraycompletely.
HotandColdSolenoid
connectionsintotheDisplay
PCBareloose.
Turnpoweroff;unplugtheWL350WaterTreatmentSystemand
visuallyinspectSolenoidconnectionsintotheDisplayPCB.Verify
thesolderingpointsonconnectionsaresecureintotheboard.
RemovethePCBtoinspectthefrontoftheboard.
ExhaustedFilter Replacefiltersasneeded.
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