WaterLogic WL250 Operating instructions

WL250Manual Page55‐Revision:12‐12‐2018
DISPENSINGTROUBLESHOOTINGINDEX

1. Dispensingwon'tstopwhennotholdingtheDispensingButton

2. Waterdoesnotdispensefromunit

3. SteadyDripoutofFaucet

4. Irregular/IntermittentDispensing

5. Smallamountofwaterperiodicallydispensesfromfaucetautomatically

6. LowFlowofWater–RatedServiceFlowis1.89Liters(0.5gallons)per
Minute

7. HotWaterIntermittentlyForcedThroughtheFaucet,oraDualStreamOut
oftheFaucet

8. HotWatercomingoutofboththeFaucetandtheVentHole

9. HotWaterDripoutofFaucet

10. DispensesHotandColdWateratthesametime

11. NoColdWaterAvailable

12. ColdWaterdispensesfromFaucetandVentOutletSimultaneously

13. DispenseButtonsstick

14. Run‐OnWatercontinuestodispenseoutoffaucetafterreleasingthe
dispensebutton

AlsoincludesrelatedinstructionforHotTankDescaling



WL250Manual Page56‐Revision:12‐12‐2018
1. DispensingWon’tStopwhenNotHoldingtheDispensingButton


PossibleReason Solution
Toomuchwaterpressure.
Recommend40‐60psiforthe
WL250WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltotheperformanceof
theunittoallowsolenoidstoopen.

Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.

Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.

Adjustwaterpressureto40‐60psi.
BadDisplayPCB
ReplaceFrontPCB
HotandCold–P/NEN‐6085WLCPPN12‐8103
ColdOnly–P/NEN‐6086WLCPPN12‐8615
DebrisintheSolenoid InspectSolenoidfordebrisandcleanoutasneeded.
DispensingButtonStuck
DirtorForeignmaterialisfillingthegaparoundthepush‐buttons.
Inspectthepushbuttonsandcleansurroundingarea.Inspect
faucetassemblyinsidetheunitandcleanasnecessary.



WL250Manual Page57‐Revision:12‐12‐2018
2. WaterdoesnotdispensefromUnit


PossibleReason Solution
Toomuchwaterpressure.
Recommend40‐60psiforthe
WL250WaterTreatment
Systemtooperateproperly.
Thecorrectinputwaterpressureiscriticaltothe
performanceoftheunittoallowsolenoidstoopen.

Checkwaterpressureattheinletbulkheadwithawater
pressuregauge.

Additionalmethodofverificationistoturnoffwatertounit
andpressthedispensebutton.Doesthesolenoidopen
withoutwaterpressuretotheunit?Listenforsolenoidto
activate,notbutton“click”.

Adjustwaterpressureto40‐60psi.
Closedwatersupplyvalve Openthewatersupplyvalve.
Theunitisnotproperly
pluggedintoelectricaloutlet
Checkelectricaloutletconnection,orforblowncircuit
breaker.
RedHeaterandCompressor
Switchonunitisintheoff
position


TurnRedHeaterandCompressorswitchon.
I=ON


15AmpFuseBlown Replacethe15AmpFuseasneeded.
Waterispresentinthebottom
tray,causingtheleak
detectiontotrigger.

*LeakDetectionisonthe
CounterTopModelonly.
RemovetheTopCoverandFrontPanel.Tiptheunitslightly
todrain,drybottomtraycompletely.
HotandColdSolenoid
connectionsintotheDisplay
PCBareloose.
Turnpoweroff;unplugtheunitandvisuallyinspectsolenoid
connectionsintotheDisplayPCB.Verifythesolderingpoints
onconnectionsaresecureintotheboard.

RemovethePCBtoinspectthefrontoftheboard.
ExhaustedFilter Replacefiltersasneeded.



WL250Manual Page58‐Revision:12‐12‐2018

3. SteadyDripOutofFaucet

PossibleReason Solution
DebrisinSolenoid InspectSolenoidfordebrisandcleanoutasneeded.

4. Irregular/IntermittentDispensing

PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
WL250WaterTreatment
Systemtooperateproperly.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.

Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.

Adjustwaterpressureto40‐60psi.
Looseorbadconnectionon
theFrontDispensingPCBor
SolenoidConnector
Checkthattheyareconnectedproperlyandtightened.
Solenoid
IfboththeWaterPressureandPCBhavebeenruledout,thenitis
theSolenoid.

ReplaceSolenoid.
Dispensingbuttonisbrokenon
PCB
CheckPCBforlooseordamagedbutton.ReplacePCBas
necessary.

5. SmallAmountofWaterPeriodicallyDispensesfromFaucetAutomatically

PossibleReason Solution
ColdorHotWaterSolenoid
Valvemalfunction`
Inspectvalvecomponentsforproperfunction.Replaceas
necessary.
ObstructioninSolenoid
housingispreventingproper
sealingofcomponent
Pre‐determinewhetherwaterbeingdispensedisHot/Cold.
Isolatethewatersupply;pushtheDISPENSEbuttontoreleasethe
linepressure,andremovethecoilaffixedtotheSolenoidstem.

Removethestemfromthesolenoidhousingandallowwaterfrom
thetanktoflushoutthecontaminate(s).

WL250Manual Page59‐Revision:12‐12‐2018
6. LowFlowofWater–RatedServiceFlowis1.89Liters(0.5gallons)per
Minute


PossibleReason Solution
DetermineFlowofWater
RatedFlowRateis1.89Liters(0.5gallons)perMinute.

CheckFlowRatebydispensingintoacontainerforoneminute.
Measuretheamountofwaterthathasbeendispensed.
FeedLinestoosmall
Feedlinescanrestrictflowifrunlongdistancesfromthesupply.It
maybenecessarytoincreasethesupplyline(e.g.use3/8”feed
lineversus¼”).
Elbowsandturnsinthefeed
line Minimizeelbowsandturnsinthefeedline.
Filters
Filterswithhighpressuredropduetofoulingorjustbydesign.
Changefiltersmorefrequentlyorgotohighermicronsizefilterfor
localwaterconditions.
Restrictions
Flowpathtoensuretherearenoundiscoveredrestrictionsdueto
debrisormalfunctioningvalves,includingthesupplyvalveatthe
source.
BoosterPump Addaboosterpumptothesupplylineifthefeedisslowerthan
needed.


7. HotWaterIntermittentlyForcedOutthroughtheFaucet,oraDualStream
outoftheFaucet


PossibleReason Solution
Mineraldepositsonthe
expansionslotinsidetheHot
Tankventchamberwhich
blocksthenormalpathof
watertoexpand.
DescaletheTank.

SeeHotTankDescalingInstructionsthatareincludedfurther
belowwinthisTroubleshootSection.






WL250Manual Page60‐Revision:12‐12‐2018

8. HotWaterComingoutofFaucetVentHole


PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
WL250WaterTreatment
Systemtooperateproperly.
Checkwaterpressureattheinletbulkheadwithawaterpressure
gauge.

Additionalmethodofverificationistoturnoffwatertounitand
pressthedispensebutton.Doesthesolenoidopenwithoutwater
pressuretotheunit?Listenforsolenoidtoactivate,notbutton
“click”.

Adjustwaterpressureto40‐60psi.
Impropertubingattachment
fromthetanktofaucetorvice
versa.
Verifytubingisconnectedproperlyfromtankoutletstocorrect
faucetattachments.
HotTankoutletholeisscaled
over.
InspectandDescaleTankasneeded.

SeeHotTankDescalingInstructionsthatareincludedfurther
belowinthisTroubleshootingSection.

SeeinstructionalvideoonthePartnerAreaoftheWaterlogic.com
websiteformoreinformation.
Expansionchamberisnot
sealedproperly. ReplacetheHotTank.



WL250Manual Page61‐Revision:12‐12‐2018
9. HotWaterDripoutofFaucet

PossibleReason Solution
SmallOutletVentHolesusceptibletoscale
buildup.
DescaleTank.

SeeHotTankDescalingInstructionsthatareincluded
furtherbelowinthisTroubleshootingSection.

SeeinstructionalvideoonthePartnerAreaofthe
Waterlogic.comwebsiteformoreinformation.

AllWaterlogicHotTankshaveabuiltinVentor
ExpansionChamberinthetopofthetankexceptfor
WL270(GF)units.

TheVentChamberallowsforexpansionofthewater
whenitisheated.

Thechambersareseparatedbyawelded‐intank
baffle.

Wateralwaysflowsintothebottomofthetankand
outthetoptothefaucet.

Thehottankoutlettubehasarestrictorinitsbase.
Thisensuresthereservoirisalwaysfullbyallowing
morewaterinthanout.

Thereisasmallholeinthesideofthetankoutlettube
thatallowsairandwatertopassintothevent
chamberasitisheated.

Waterintheventchamberissuctionedbackthrough
theoutlettubeventholewhenwaterisdispensed.

Expansionofwaterasitisheatedinthereservoirwill
pushthewateroutthefaucetwhentheoutlettube
ventholebecomespluggedwithdebrisorscale.

ThesmallOutletVentHoleissusceptibletoscalebuild
upandisakeyindicatorthatdescalingisrequired.

Itiscriticaltodescalethehottankthroughthevent
lineandoutletlineonaregularbasistopreventthis
problem.

Descalingthroughtheinletand/oroutletlinesonly
willnotcleantheventchamberandoutletventhole
properly.

WL250Manual Page62‐Revision:12‐12‐2018
10. DispensesHotandColdWaterattheSameTime


PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
WL250WaterTreatment
Systemtooperateproperly.
Checkwaterpressureattheinletbulkheadwithawater
pressuregauge.

Additionalmethodofverificationistoturnoffwatertounit
andpressthedispensebutton.Doesthesolenoidopen
withoutwaterpressuretotheunit?Listenforsolenoidto
activate,notbutton“click”.

Adjustwaterpressureto40‐60psi.
HotorColdsolenoidisstuck
open.
RemoveTopcover.

CheckHotSolenoid:Dispensecoldwaterandvisuallyinspect
tubingforwaterflowfrombothtanks.

CheckColdSolenoid:Disconnectelbowfromoutletofcold
solenoid.Selecthotwateranddispense(quicklyreleasing
dispensingbuttontoavoidmuchwatercomingoutofcold
solenoid.

Replacesolenoidasnecessary.



WL250Manual Page63‐Revision:12‐12‐2018

11. NoColdWaterAvailable


PossibleReason Solution
Toomuchwaterpressure.
Recommend40to60psifor
WL250WaterTreatment
Systemtooperateproperly.
Checkwaterpressureattheinletbulkheadwithawater
pressuregauge.

Additionalmethodofverificationistoturnoffwatertounit
andpressthedispensebutton.Doesthesolenoidopen
withoutwaterpressuretotheunit?Listenforsolenoidto
activate,notbutton“click”.

Adjustwaterpressureto40‐60psi.
ClosedWaterSupplyValve OpentheWaterSupplyValve
ColdWaterSolenoidValve
malfunction Inspectthevalvecomponentsforproperfunctionality.
RedHeaterandCompressor
Switchonunitisoff.


TurnRedHeaterandCompressorSwitchon.
I=ON


Looseconnection(s)onthe
DisplayPCB
Turnpoweroff;unplugtheunitandvisuallyinspectsolenoid
connectionsintotheDisplayPCB.Verifythesolderingpoints
onconnectionsaresecureintotheboard.

RemovethePCBtoinspectthefrontoftheboard.
ExhaustedFilter Replacefiltersasneeded.

12. ColdWaterDispensesfromFaucetandVentOutletSimultaneously


PossibleReason Solution
Impropertubingattachment
fromthetanktofaucetorvice
versa
Verifytubingisconnectedproperlyfromtankoutletsto
correctfaucetattachments.
Scalehasformedinsidecold
tankoutlettube.
Removecoldwateroutlettubefromtanktofaucet.Pour
somescaleremoverintocoldtank.
ExpansionchamberinCold
Tankisnotsealedproperly. ReplaceColdTank.



WL250Manual Page64‐Revision:12‐12‐2018
13. DispenseButtonsStick


PossibleReason Solution
DirtorForeignmaterialis
fillingthegaparoundthe
push‐buttons.
Inspectthepushbuttonsandcleansurroundingarea.
Inspectfaucetassemblyinsidetheunitandcleanas
necessary.

14. RunOn–Watercontinuestodispenseoutoffaucetafterreleasingthe
dispensebutton

Reason
“RunOn”or“CarryOn”ispresentinallWaterlogicpressurefedunitswithoutoutlet
solenoids.

“RunOn”isdefinedistheamountofwaterthatcontinuestodispenseoutofthefaucetafter
releasingthedispensebutton.

RunOnexistsbecausethetankspressurizeaswaterisbeingdispensed.EveryWaterlogictank
hasanoutletrestrictortoensurethetanksremainfullofwaterandwateriscontrolledasitis
releasedtothefaucet.Theinletsolenoidcontrolsflowintothetanks.Thetankswill
“depressurize”oncethedispensebuttonisreleasedtheinletsolenoidcloses.Asmallamount
ofwaterwill“RunOn”throughthefaucetasthetankdepressurizestoatmospheric
conditions.

Typical“RunOn”is2‐3seconds.

“RunOn”canbereducedbyinstallingapressurelimitingdevice.

Theamountofinletorsupplypressuredirectlyimpactstheamountof“RunOn”asquantified
below.

WLCPLabTestingofRnOn7‐31‐2013
Pressure Pressure Time FlowRate RunOn
StaticPSI DynamicPSI 4Liters I/min Seconds
68 40 61 2.9508197 3
50 30 72 2.5 2.5
32 20 92 1.956217 2
Pressuremeasuredatinletlinetounit.Staticwithunitclosed.Dynamicwithunit
dispensingcoldwater.
Nofilterswereinstalledinunit.




WL250Manual Page65‐Revision:12‐12‐2018
HOTTANKDESCALINGINSTRUCTIONS

Thehottankrequiresremovalofmineraldeposits(descaling)onaregularbasis.Typically
descalingshouldtakeplaceevery6to12monthstopreservethelong‐termhealthofyour
unit.

Usenon‐toxiccleanersuchasScaleKleen,DEZCAL,20%CitricAcidSolution,orUndiluted
VinegarSolutiontoremovemineraldepositsasdirectedbythemanufacturerdepending
uponfiltrationandlocalwaterconditions.

Descalingisanimportantprocessthatremovescalciumdeposits,orscale,thatcanbuildup
insideatankovertime.Calciumandscaleisnon‐toxicbutleftunattendedwillhinderyour
unit’sperformance.


WARNING!PERSONALPROTECTIVEEQUIPMENTREQUIRED.Alwaysensureproper
ventilationanduserubberornitrileglovesandeyeprotectionwhenusingchemicals.
RefertoMaterialSafetyDataSheetforspecificrequirementsofeachproduct.

CAUTION!STAINLESSSTEELTANKDESCALING.
TheHotTankismadefromstainlesssteel.Ensuredescalingsolutioniscompatiblewith
stainlessandalwaysflushtheunitcompletely.Disposeinanenvironmentallysafe
manner.

MaterialsNeeded:
 PersonalProtectiveEquipment.RubberorNitrileSafetyGlovesandProtectiveEyewear
 PhillipsScrewdriver
 TemperatureGauge
 WaterPitcherorContainertocollectwaterfromthefaucet
 5‐galloncontainerordrainbasin
 CitricAcidBasedCleaner
 ¼”PlasticTubing,atleast4feetinlength,andassorted¼”quickconnectfittings
 SanitizingCartridge–anemptyWaterlogicFilterwithcartridgeremoved
 FoodColoring

1. BypassfiltersbeforestartingtheDescalingProcedure.

2. Putdescalerperdirectionsand3dropsoffoodcoloringintothedescalingcartridge.

3. Connectdescalingcartridgetotheinletwatersupplyandconnecttoinletbulkheadfitting
onthebackoftheunit.TurnonWaterSupply.

4. SelectHotWateranddepresstheMainDispensingButtonontheFrontControlPaneluntil
descalingsolution(coloredwater)comesoutofthefaucet.Containeranddrainbasicwill
berequiredtocatchwaterfromthefaucet.

WL250Manual Page66‐Revision:12‐12‐2018

5. Turnoffwatersupplyandremovesanitizingcartridgefrominletwatersupply.Reconnect
watersupplytoinletfitting.


6. AllowdescalingsolutiontoremainintheHotTankfor15minutes(lengthoftimemayvary
dependingonwaterconditions).

7. Placeapitcher,catchbasinorothercontainerunderthefaucetoftheWL250.

8. FlushtheHotTankuntilwaterrunsclear.

9. OnceclearWaterdispensesfromthefaucettheHotTankhasbeendescaled.Always
ensureunitisperformingtothecustomer’ssatisfaction.

10. ReplaceFilters.


WARNING!HOTWATER.TheWL250WaterTreatmentSystemproducesHotWaterup
to87°C(188°F).Waterabove52°C(125°F)cancausesevereburnsorscalding.Hot
watershouldbedispensedcarefullyintoinsulatedcontainertoavoidinjury.Alwaysuse
insulatedandchemicallycompatiblecontainersandletunitcooldownbeforedraining
theHotTanktoavoidinjury.

CAUTION!MUSTREPLACEHOTTANK3‐5YEARSDEPENDINGONUSAGE.TheHot
Tankanditscontrolsmustbereplacedaminimumofeverythreetofiveyearsdepending
onusagetoensureefficientanddependableoperation.


WARNING!REINSTALLALLPANELSANDCOVERS.Alwaysreinstallallpanels,protective
covers,andfastenersafterservicingequipment.Failuretodosocouldresultinsevere
personalinjuryandwillvoidthecertificationsandwarrantyoftheequipment.
