Hayward H250FD User manual

FOR YOUR SAFETY
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing property
damage, injury, or death.
- Donotstoreorusegasolineorotheram-
mablevaporsorliquidsinthevicinityofthis
oranyotherappliance.
WHAT TO DO IFYOU SMELL GAS:
• Donottrytolightanyappliance.
• Donottouchanyelectricalswitch;donotuse
anyphoneinyourbuilding.
• Immediatelycallyourgassupplierfroma
neighbor’sphone.Followthegassupplier’s
instructions.
• Ifyoucannotreachyourgassupplier,callthe
redepartment.
-Installationandservicemustbeperformedby
aqualiedinstaller,serviceagency,orthegas
supplier.
POOL AND SPA/HOT TUB HEATERS
H150FD, H200FD, H250FD, H300FD,
H350FD & H400FD MODELS
OWNER’S MANUAL
FOR YOUR SAFETY
Thisproductmustbeinstalledandservicedbyauthorizedpersonnel,qualiedinpool/spa
heaterinstallation.Improperinstallationand/oroperationcancreatecarbonmonoxidegas
anduegasesthatcancauseseriousinjury,propertydamage,ordeath.
1301640701 REV F 0413
PRINTED 10/24/2011 AT 1:13 PM
U.S. PATENT NOS. 6,026,804, 6,321,833,& 7,971,603

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Tel: [phone] www.haywardpool.com
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2
Warnings .......................................................................................................3
Section I. General information.......................................................................7
Section II. Consumer Operation & Maintenance...........................................8
Maintaining proper water chemistry...............................................................8
Lighting & Operating instructions label........................................................10
Temperature adjustment..............................................................................11
Temperature Lock-out..................................................................................12
Fahrenheit versus Celsius...........................................................................12
Winterization................................................................................................12
Spring start-up.............................................................................................12
Error codes..................................................................................................13
Warranty......................................................................................................15
CONTENTS

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Basicsafetyprecautionsshouldalwaysbefollowed,includingthefollowing:Failuretofollowinstructions
cancausesevereinjuryand/ordeath.
Thisisthesafety-alertsymbol.Whenyouseethissymbolonyourequipmentorinthismanual,lookfor
oneofthefollowingsignalwordsandbealerttothepotentialforpersonalinjury.
WARNINGwarnsabouthazardsthatcouldcauseseriouspersonalinjury,deathormajorpropertydam-
ageandifignoredpresentsapotentialhazard.
CAUTIONwarnsabouthazardsthatwillorcancauseminorormoderatepersonalinjuryand/orprop-
ertydamageandifignoredpresentsapotentialhazard.Itcanalsomakeconsumersawareofactionsthat
areunpredictableandunsafe.
ATTENTIONindicatesspecialinstructionsthatareimportantbutnotrelatedtohazards.
READ AND FOLLOW ALL INSTRUCTIONS IN THIS OWNER’S
MANUAL AND ON EQUIPMENT.
IMPORTANT SAFETY INSTRUCTIONS
Before installing or servicing this electrical equipment, turn power supply OFF.
KEEP SAFETY LABELS IN GOOD CONDITION AND REPLACE IF MISSING OR DAMAGED.
WARNING–Toreduceriskofinjury,donotpermitchildrentouseorclimbontheheater,pumpsor
lters.Closelysupervisechildrenatalltimes.Componentssuchastheltrationsystem,pumps,and
heatersmustbepositionedtopreventchildrenfromusingthemasameansofaccesstothepool.
CAUTION –Thisheaterisintendedforuseonpermanentlyinstalledswimmingpoolsandmayalso
beusedwithspas.DoNOTusewithstorablepools.Apermanentlyinstalledpoolisconstructedinor
onthegroundorinabuildingsuchthatitcannotbereadilydisassembledforstorage.Astorablepoolis
constructedsothatitiscapableofbeingreadilydisassembledforstorageandreassembledtoitsoriginal
integrity.
Thoughthisproductisdesignedforoutdooruse,itisstronglyrecommendedtoprotecttheelectrical
componentsfromtheweather.Selectawelldrainedarea,onethatwillnotoodwhenitrains.Itrequiresfree
circulationofairforcooling.Donotinstallinadampornon-ventilatedlocation.
WARNING –Itisrequiredthatlicensedelectriciansdoallelectricalwiring.Riskof
ElectricShock.Hazardousvoltagecanshock,burn,causedeathorseriousproperty
damage.Toreducetheriskofelectricshock,doNOTuseanextensioncordtoconnect
unittoelectricsupply.Provideaproperlylocatedoutlet.AllelectricalwiringMUSTbe
inconformancewithapplicablelocalandnationalcodesandregulations.Beforework-
ingonthisunit,turnoffpowersupplytotheheater.
WARNING –Toreducetheriskofelectricshockreplacedamagedwiringimmediately.Locateconduit
topreventabusefromlawnmowers,hedgetrimmersandotherequipment.
WARNING –Failuretobondtopoolstructurewillincreaseriskforelectrocutionandcouldresultin
injuryordeath.Toreducetheriskofelectricshock,theelectricianmustcomplywithinstallationin-
structionsandmustbondtheheateraccordingly.Inaddition,thelicensedelectricianmustalsoconform
tolocalelectricalcodesforbondingrequirements.
SAFETY INFORMATION

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NOTES TO THE ELECTRICIAN:
Useasolidcopperconductor,size8orlarger.Runacontinuouswirefromexternalbondinglugtorein-
forcingrodormesh.ConnectaNo.8AWGsolidcopperbondingwiretothegroundinglugprovidedonthe
heaterandtoallmetalpartsofswimmingpoolorspa,andtoallelectricalequipment,metalpiping(except
gaspiping),andconduitwithin5ft.(1.5m)ofinsidewallsofswimmingpoolorspa.
IMPORTANT-ReferenceNECcodesforallwiringstandardsincluding,butnotlimitedto,grounding,
bondingandothergeneralwiringprocedures.
WARNING – Suction Entrapment Hazard.
Suctioninsuctionoutletsand/orsuctionoutletcoverswhicharedamaged,broken,
cracked,missing,orunsecuredcancausesevereinjuryand/ordeathduetothefol-
lowingentrapmenthazards:
Hair Entrapment-Haircanbecomeentangledinsuctionoutlets.
Limb Entrapment-Alimbinsertedintoanopeningofasuctionoutletorsuctionoutlet
coverthatisdamaged,broken,cracked,missing,ornotsecurelyattachedcanresultina
mechanicalbindorswellingofthelimb.
Body Suction Entrapment-Adifferentialpressureappliedtoalargeportionofthebodyorlimbscan
resultinanentrapment.
Evisceration/ Disembowelment-Avacuumapplieddirectlytotheintestinesthroughanunprotected
suctionoutletsumporsuctionoutletcoverwhichisdamaged,broken,cracked,missing,orunsecured
canresultinevisceration(disembowelment).
Mechanical Entrapment-Thereispotentialforjewelry,swimsuit,hairdecorations,nger,toeorknuck-
letobecaughtinanopeningofasuctionoutletorsuctionoutletcoverresultinginmechanicalentrap-
ment.
WARNING-Toreducetheriskofentrapmenthazards:
• Whensuctionoutletsarelessthana18”x23”equivalent,aminimumoftwofunction-
ingsuctionoutletsperpumpmustbeinstalled.Suctionoutletsinthesameplane(i.e.
oororwall),mustbeinstalledaminimumofthreefeet(3’)[1meter]apart,asmea-
suredfromnearpointtonearpoint.
• Dualsuctionoutletsshallbeplacedinsuchlocationsanddistancestoavoid“dual
blockage”byauser.
• Dualsuctionttingsshallnotbelocatedonseatingareasoronthebackrestforsuch
seatingareas.
• Themaximumsystemowrateshallnotexceedtheowratingofanylisted(percurrentrevisionof
ASME/ANSIA112.19.8)suctionoutletcoverinstalled.
• NeverusethePoolorSpaifanysuctionoutletcomponentisdamaged,broken,cracked,missing,or
notsecurelyattached.
• Replacedamaged,broken,cracked,missing,ornotsecurelyattachedsuctionoutletcomponentsim-
mediately.
• InstalltwoormoresuctionoutletsperpumpinaccordancewithlatestAPSP(formallyNSPI)Stan-
dardsandCPSCguidelines.FollowallapplicableNational,State,andLocalcodes.

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WARNING–Failuretoremovepressuretestplugsand/orplugsusedinwinterizationofthepool/spa
fromthesuctionoutletscanresultinanincreasepotentialforsuctionentrapmentasdescribedabove.
WARNING–Failuretokeepsuctionoutletcomponentsclearofdebris,suchasleaves,dirt,hair,paper
andothermaterialcanresultinanincreasepotentialforsuctionentrapmentasdescribedabove.
WARNING–Suctionoutletcomponentshaveanitelife,thecover/grateshouldbeinspectedfre-
quentlyandreplacedatleasteverytenyearsoriffoundtobedamaged,broken,cracked,missing,ornot
securelyattached.
WARNING–AllsuctionanddischargevalvesMUSTbeOPENwhenstartingthecirculationsystem.
Failuretodosocouldresultinseverepersonalinjuryand/orpropertydamage.Alldrainsandsuction
outletsMUSThaveproperlyinstalledcovers,securelyattachedusingthescrewssuppliedwiththecov-
ers.Ifscrewsarelost,orderreplacementpartsfromyoursupplier.
WARNING – Hazardous Pressure.Poolandspawatercirculationsystemsoperate
underhazardouspressureduringstartup,normaloperation,andafterpumpshutoff.
Standclearofcirculationsystemequipmentduringstartup.Failuretofollowsafety
andoperationinstructionscouldresultinviolentseparationofthepumphousing
andcoverduetopressureinthesystem,whichcouldcausepropertydamage,severe
personalinjury,ordeath.Beforeservicingpoolandspawatercirculationsystem,all
systemandpumpcontrolsmustbeinoffpositionandltermanualairreliefvalve
mustbeinopenposition.Beforestartingsystempump,allsystemvalvesmustbeset
inapositiontoallowsystemwatertoreturnbacktothepool.Donotchangelter
controlvalvepositionwhilesystempumpisrunning.Beforestartingsystempump,
fullyopenltermanualairreliefvalve.Donotcloseltermanualairreliefvalve
untilasteadystreamofwater(notairorairandwater)isdischarged.
WARNING – Separation Hazard.Failuretofollowsafetyandoperationinstruc-
tionscouldresultinviolentseparationofpumpcomponents.Strainercovermustbe
properlysecuredtopumphousingwithstrainercoverlockring.Beforeservicing
poolandspacirculationsystem,manualairreliefvalvemustbeinopenposition.Do
notoperatepoolandspacirculationsystemifasystemcomponentisnotassembled
properly,damaged,ormissing.Donotoperatepoolandspacirculationsystemunless
lterairreliefvalvebodyisinlockedpositioninlterupperbody.
WARNING –Neveroperateortestthecirculationsystematmorethan40PSI.
WARNING–Fireandburnhazard.Motorsoperateathightemperaturesandiftheyarenotproperly
isolatedfromanyammablestructuresorforeigndebristheycancauseres,whichmaycausesevere
personalinjuryordeath.Itisalsonecessarytoallowthemotortocoolforatleast20minutespriorto
maintenancetominimizetheriskofburns.
WARNING–Failuretoinstallaccordingtodenedinstructionsmayresultinseverepersonalinjuryor
death.

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WARNING–Thefollowing“SafetyRulesforHotTubs”recommendedbytheU.S.Consumer
ProductSafetyCommissionshouldbeobservedwhenusingthespa.
1. Spaorhottubwatertemperaturesshouldneverexceed104°F[40°C].Atemperatureof100°F
[38°C]isconsideredsafeforahealthyadult.Specialcautionissuggestedforyoungchildren.Pro-
longedimmersioninhotwatercaninducehyperthermia.
2. Drinkingofalcoholicbeveragesbeforeorduringspaorhottubusecancausedrowsiness,which
couldleadtounconsciousnessandsubsequentlyresultindrowning.
3. Pregnantwomenbeware!Soakinginwaterabove100°F[38°C]cancausefetaldamageduringthe
rstthreemonthsofpregnancy(resultinginthebirthofabrain-damagedordeformedchild).Preg-
nantwomenshouldadheretothe100°F[38°C]maximumrule.
4. Beforeenteringthespaorhottub,usersshouldcheckthewatertemperaturewithanaccuratether-
mometer;spaorhottubthermostatsmayerrinregulatingwatertemperaturesbyasmuchas4°F
(2.2°C).
5. Personstakingmedications,whichinducedrowsiness,suchastranquilizers,antihistaminesoranti-
coagulants,shouldnotusespasorhottubs.
6. Ifthepool/spaisusedfortherapy,itshouldbedonewiththeadviceofaphysician.Alwaysstirpool/
spawaterbeforeenteringthepool/spatomixinanyhotsurfacelayerofwaterthatmightexceed
healthfultemperaturelimitsandcauseinjury.Donottamperwithcontrols,becausescaldingcan
resultifsafetycontrolsarenotinproperworkingorder.
7. Personswithamedicalhistoryofheartdisease,circulatoryproblems,diabetesorbloodpressure
problemsshouldobtainaphysiciansadvicebeforeusingspasorhottubs.
8. Hyperthermiaoccurswhentheinternaltemperatureofthebodyreachesalevelseveraldegrees
abovenormalbodytemperatureof98.6°F[37°C].ThesymptomsofHyperthermiainclude:drowsi-
ness,lethargy,dizziness,fainting,andanincreaseintheinternaltemperatureofthebody.
The effects of Hyperthermia include:
1. Unawarenessofimpendingdanger.
2. Failuretoperceiveheat.
3. Failuretorecognizetheneedtoleavethespa.
4. Physicalinabilitytoexitthespa.
5. Fetaldamageinpregnantwomen.
6. Unconsciousnessresultingindangerofdrowning.
DEFINITIONS:
SuctionOutlet– ThetermSuctionOutletisatting,ttingassembly,cover/grateandrelatedcompo-
nentsthatprovideameansforwatertoexitthepoolandintothepumpcirculating
system.
Inchesof
Mercury(inHg)- Aunitformeasuringpressurebelowatmospheric(“suction”or“vacuum”)(1.0inch
Hg=.491PSI)
MainDrain– SeeSuctionOutlet
PSI– Anabbreviationforpoundspersquareinch.

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INTRODUCTION:
Thismanualcontainsinstructionsforoperationandthesafeuseoftheswimmingpool/spa/hottubheat-
ers.Haywardstronglyrecommendsthattheownerreadthemanualbeforeusingtheswimmingpool/spa/
hottubheater.Ifafterreviewingthemanualanyquestionsremainunanswered,contactthefactoryorlocal
representative.
LIMITED WARRANTY SUMMARY:
Wewarrantthepool/spa/hottubheatertobefreefromdefectsinmaterialsandworkmanship,andwe
willwithinoneyearfromdateofinstallationforallusers,fortheoriginalpurchaser,repairor,atouroption,
replacewithoutchargeanydefectivepart.Wefurtherwarrantthatiftheheatexchangerorexchangerheaders
(water-containingsection)leakwithinoneyearfromdateofsuchinstallationforallusers,duetodefectsin
materialsandworkmanship,wewillprovideareplacementpart.Costoffreight,installation,fuel,andservice
labor(afteroneyear)isatuser’sexpense.Forfulldetailsofwarrantyagreement,seewarrantycerticate
includedinthismanual.
ATTENTION:Ifthepool/spa/hottubheaterisdamagedordestroyedbyimpropermaintenance,exces-
sivewaterhardness,incorrectwaterchemistry,orfreezingitisnotcoveredunderthemanufacturer’s
warranty.
SECTION I. GENERAL INFORMATION

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TheheatexchangerinyourHaywardpoolheaterismadefromthehighestqualityofcopperandnickel
(Cupronickel)materials.Thepremiummaterialsandtheexactingprocessesusedinthemanufactureofthe
heatexchangerisstateoftheartinpoolheaterdesignandmanufacture.Yet,itremainsvitalthattheheatex-
changerbeprotectedfromdamagingorcorrosivechemicals,insufcientwateroworimproperlybalanced
waterchemistry.Heatexchangerdamageorfailureresultingfromimproperow,improperlybalancedpool
waterortheimproperadditionofsanitizersintothewaterisNOTcoveredunderthetermsofyourwarranty.
Thefollowingfactorsarecriticaltoheatexchangerprotection.Followtheseguidelinestohelpprevent
pre-maturedamageorfailuretoyourheaterandheatexchanger.
1. WATER FLOW THROUGH HEATER
 Watermustbeowingthroughtheheaterattheminimumratedowrateduringoperation.Checkthat
thepumpisoperatingandthesystemislledwithwaterandpurgedofallairpriortostartingtheheater.The
minimumratedowratesarelistedintheinstallationmanualonpage25.Someinstallationsmayrequirean
adjustmenttothewaterpressureswitchforproperlow-owprotection.Testyoursystemandifnecessary,
adjustthewaterpressureswitchasdescribedintheinstallationmanualonpage34.
2. POOL/SPA WATER CHEMISTRY
 Thechemistrybalanceandmineralcontentofswimmingpoolwaterchangesdailyduetotheadditionof
poolandsanitizingchemicals,batherloads,rain,runoffandtheamountofsun-tonameafew.Improperchem-
istrybalanceandmineralcontentcancausescalinganddepositstoformonpoolwalls,intheltrationsystem,
intheheatexchangertubesandadditionallycanpromotecorrosiveactiontoallmetalsinthewaterpath.Chang-
ingspawaterregularlyandmaintainingthecorrectchemicalbalanceinyourpool/spawillkeepthepool/spa
safeandsanitary,andwillhelpprotecttheheatexchanger.Usea4-waypool/spawatertestkittocheckyour
waterfrequently(atleastweekly).Usethefollowingguidelinestohelpprotectyourheater’sheatexchanger:
3. SKIMMER CHLORINATION
 Placingchlorineorbrominetabletsdirectlyintotheskimmermayresultinhighchemicalconcentrations
owingthroughtheheater.DONOTplacechlorineorbrominetabletsintheskimmer.
WARNING: Failure to Maintain Proper Water Chemistry May Cause
Premature Heat Exchanger Damage or Failure
MAINTAINING PROPER WATER CHEMISTRY
Recommended
LevelEffect of Low Levels Effect of High Levels
Chlorine1 - 3 ppm
Bromine 2 - 4 ppm
pH 7.4 - 7.6corrosive to heat exchanger,
swimmer irritation cloudy water, scaling of heat exchanger, reduced sanitizer effectiveness
Total Alkalinity80 - 120 ppm corrosive to heat exchanger,
large fluctuations in pH scaling of heat exchanger
Calcium Hardness 200 - 400 ppm corrosive to heat exchangerscaling of heat exchanger
Salt 2700 - 5000 ppm poor salt chlorinator performancecorrosive to heat exchanger
hazy water, algea growth,
bacteria causing infections swimmer irritation, bleaching of clothes/hair, corrosive to heat exchanger

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New Figure 1 for UHS owner manual page 9:
Figure 1
New text for UHS owner manual page 11:
TEMPERATURE ADJUSTMENT
This pool heater is equipped with a digital thermostat which allows the user to select the desired
water temperature. The heater will then function automatically to maintain the desired
temperature. The heater has 3 modes of operation:
1. STANDBY: in this mode, the heater will not function to heat the water.
2. SPA: in this mode, the heater will automatically function to maintain the water
temperature setting for SPA mode.
3. POOL: in this mode, the heater will automatically function to maintain the water
temperature setting for POOL mode.
Use the MODE button to change modes. The indicator lights will illuminate to show which mode
the heater is currently in. Each mode has its own temperature setting, allowing the user to have
2 individual pre-set temperature settings. To adjust the temperature while in SPA or POOL
mode, use the UP and DOWN buttons. The numeric display will flash to indicate the
temperature setting is being displayed / adjusted. When the numeric display is not flashing, the
actual water temperature is being displayed. The temperature settings for both SPA and POOL
modes are initially set at the factory to 65°F. The minimum allowed settings for SPA and POOL
modes are both 65°F. The maximum allowed settings for SPA and POOL modes are adjustable
up to 104°F using the temperature lockout feature (see below).
After selecting SPA or POOL mode or adjusting the temperature setting, it is normal for the
heater to delay up to 10 seconds before the heater starts operating. This delay is an internal
self-test of the heater. On occasion, the numeric display may show a diagnostic error code;
refer to list of diagnostic error codes in Figure 4. Pressing the MODE button to cycle to
STANDBY and back to SPA or POOL will clear a diagnostic error code. When clearing a
User Interface
Keypad
Front Access
Panel
WARNING:Ifyousmellgasintheapplianceareaorneartheoor(PROPANEIS
HEAVIERTHANAIRANDHENCESETTLESONTHEFLOOR),stopandfollow
theinstructionsonthefrontcoverofthismanual.Sincepropanecanaccumulateincon-
nedareas,extracareshouldbetakenwhenlightingpropaneheaters.
ATTENTION:Donotusetheheaterbelow40°F(4°C)temperaturewithoutadequatetemperatureprotection.
WARNING:Donotingestalcoholordrugsduringuseorpriortousingpool,spa,orhottub.Ingestionofsuch
intoxicantscancausedrowsiness,whichcanleadtounconsciousness,andsubsequentlyresultindrowning.
4. CHLORINATOR INSTALLATION
 Chlorinatorsmustbeinstalleddownstreamoftheheater,andacheckvalvemustbeinstalledbetweenthe
heaterandchlorinatortopreventhighchemicalconcentrationsfrombackowingintotheheater.Makesureyour
pipingarrangementmeetsthechlorinatorinstallationrequirementsshownintheinstallationmanualonpage26.
5. BYPASS
Untilwaterchemistryisproperlybalanced,andifyourpipinghasabypassvalveinstalledfortheheater,
openthebypasssothatcorrosiveandpotentiallydamagingwaterwillnotowthroughtheheaterandthere-
foretheheatexchanger.Closethebypassvalveoncethewaterisproperlybalanced.Failuretoclosethe
bypassvalvewhenattemptingtooperatetheheaterwillresultinextensivedamagetotheheatexchanger.
Ensurewaterowthroughtheheaterisrestoredbeforeoperatingtheheater.Abypassfeatureisalsoadvanta-
geousforserviceneedsandfortheabilitytoremovetheheaterfromthewaterpathwhennotheating.Refer
topage25intheinstallationmanualforfurtherinformation.
HEATER OPERATION:
Fulllightingandshutdowninstructionsareincludedonthelighting&operatinginstructionslabelafxed
totheinsideofthefrontaccesspanel.SeeFigure1forthelocationofthislabelandthekeypad.SeeFigure2
forthelabel.
Figure1:Keypadandlabellocations

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Figure2:Lighting&OperatingInstructionslabel

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TEMPERATURE ADJUSTMENT
Thispoolheaterisequippedwithadigitalthermostatwhichallowstheusertoselectthedesiredwater
temperature.Theheaterwillthenfunctionautomaticallytomaintainthedesiredtemperature.Theheaterhas
3modesofoperation:
1. STANDBY:inthismode,theheaterwillnotfunctiontoheatthewater.
2. SPA:inthismode,theheaterwillautomaticallyfunctiontomaintainthewatertemperaturesettingfor
 SPAmode.
3. POOL:inthismode,theheaterwillautomaticallyfunctiontomaintainthewatertemperaturesetting
 forPOOLmode.
UsetheMODEbuttontochangemodes.Theindicatorlightswillilluminatetoshowwhichmodethe
heateriscurrentlyin.Eachmodehasitsowntemperaturesetting,allowingtheusertohave2individual
pre-settemperaturesettings.ToadjustthetemperaturewhileinSPAorPOOLmode,usetheUPandDOWN
buttons.Thenumericdisplaywillashtoindicatethetemperaturesettingisbeingdisplayed/adjusted.When
thenumericdisplayisnotashing,theactualwatertemperatureisbeingdisplayed.Thetemperaturesettings
forbothSPAandPOOLmodesareinitiallysetatthefactoryto65°F.TheminimumallowedsettingsforSPA
andPOOLmodesareboth65°F.ThemaximumallowedsettingsforSPAandPOOLmodesareadjustableup
to104°Fusingthetemperaturelockoutfeature(seenextsection).
AfterselectingSPAorPOOLmodeoradjustingthetemperaturesetting,itisnormalfortheheaterto
delayupto10secondsbeforetheheaterstartsoperating.Thisdelayisaninternalself-testoftheheater.On
occasion,thenumericdisplaymayshowadiagnosticerrorcode;refertolistofdiagnosticerrorcodesin
Figure4.PressingtheMODEbuttontocycletoSTANDBYandbacktoSPAorPOOLwillclearadiagnostic
errorcode.Whenclearingadiagnosticerrorcodethisway,itisnormalfortheheatertodelayupto5seconds
beforeresumingnormaloperation,assumingthediagnosticerrorcodedoesnotre-appear.
diagnostic error code this way, it is normal for the heater to delay up to 5 seconds before
resuming normal operation, assuming the diagnostic error code does not re-appear.
Figure 3: User interface keypad
TEMPERATURE LOCK-OUT
The digital thermostat in this pool heater allows the user to lock the maximum temperature
setting allowed. This feature is useful for preventing unauthorized users from manually adjusting
the temperature settings higher than desired. On a new heater, the maximum allowed
temperature lock settings are initially set at the factory to 90°F for POOL mode, and 104°F for
SPA mode. To adjust these settings, use the following procedure:
1. Use the MODE button to put the heater in STANDBY mode.
2. Press and hold both the UP and DOWN buttons at the same time.
3. After 3 seconds, the thermostat enters maximum temperature lock adjustment mode.
4. The SPA indicator light illuminates and the numeric display shows the current SPA mode
maximum temperature lock setting. Both the SPA indicator light and the numeric display
flashes rapidly when in adjustment mode.
5. Use the UP and DOWN buttons to set the desired maximum temperature lock setting.
When finished, press the MODE button.
6. The POOL indicator light illuminates and the numeric display shows the current POOL
mode maximum temperature lock setting. Both the POOL indicator light and the
numeric display flashes rapidly when in adjustment mode.
7. Use the UP and DOWN buttons to set the desired maximum temperature lock. When
finished, press the MODE button.
8. The heater will return to STANDBY mode.
Numeric Display
Buttons
Indicator Lights
Figure3:Userinterfacekeypad

12
TEMPERATURE LOCK-OUT:
Thedigitalthermostatinthispoolheaterallowstheusertolockthemaximumtemperaturesettingallowed.
Thisfeatureisusefulforpreventingunauthorizedusersfrommanuallyadjustingthetemperaturesettingshigher
thandesired.Onanewheater,themaximumallowedtemperaturelocksettingsareinitiallysetatthefactoryto
90°FforPOOLmode,and104°FforSPAmode.Toadjustthesesettings,usethefollowingprocedure:
1. UsetheMODEbuttontoputtheheaterinSTANDBYmode.
2. PressandholdboththeUPandDOWNbuttonsatthesametime.
3. After3seconds,thethermostatentersmaximumtemperaturelockadjustmentmode.
4. TheSPAindicatorlightilluminatesandthenumericdisplayshowsthecurrentSPAmodemaximum
 temperaturelocksetting.BoththeSPAindicatorlightandthenumericdisplayashesrapidlywhenin
 adjustmentmode.
5. UsetheUPandDOWNbuttonstosetthedesiredmaximumtemperaturelocksetting.Whennished,
 presstheMODEbutton.
6. ThePOOLindicatorlightilluminatesandthenumericdisplayshowsthecurrentPOOLmodemaximum
 temperaturelocksetting.BoththePOOLindicatorlightandthenumericdisplayashesrapidlywhenin
 adjustmentmode.
7. UsetheUPandDOWNbuttonstosetthedesiredmaximumtemperaturelock.Whennished,pressthe
 MODEbutton.
8. TheheaterwillreturntoSTANDBYmode.
FAHRENHEIT VERSUS CELSIUS:
ThetemperaturecanbedisplayedinFahrenheitorCelsius.TOchangethedisplay,usethe“MODE”button
toplacetheheaterin“STANDBY”.Thenpressandholdthe“UP”and“MODE”buttonsuntilthedisplayshows
the°F/°Cselection.Pressthe“DOWN”buttontotogglebetweenselections.Toaccepttheselection,pressthe
“MODE”button.Iftheuserdoesnotact,theselectionwillbeautomaticallyacceptedafter60seconds.
WINTERIZATION:
Inmoderateclimates,theheatercancontinuetooperateduringshort-termcoldspells.Donotusethe
heatertomaintainthewatertemperaturejustabovefreezingorforfreezeprotection.Caremustbetakento
avoidfreeze-upintheheater.Whenitisusedduringfreezingweather,thepumpmustruncontinuously.The
heaterisnotwarrantedagainstfreeze-ups.Inregionswherefreezingtemperaturesareencountered,allwater
mustbedrainedfromtheheaterwhenitisoutofservice,topreventdamagetotheheaterandpiping.Drain-
ingtheheatexchangerisrecommendedaspartoftheseason’sshutdownprocedures.
SPRING START-UP – CONSULT A PROFESSIONAL:
1. Inspectandcleantheheater,beingsuretheheaterisfreeofleavesanddebrispriortostartup.
2. Besureinletandoutletpipingareproperlyattachedtotheheaterandthedrainvalveisclosed.
3. Turntheltrationsystempump“ON”andallowthesystemtorunlongenoughtopurgealltheair
fromthelines.
4. Turnthegassupplytotheheater“ON”.
5. Setthetemperaturecontrolusingthekeypadto“POOL”or“SPA”andadjustthesetpointtothe
desiredtemperaturesetting.
6. Ifoperatingdifcultiesareencountered,contactaqualiedservicecompanyforassistance.

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Figure4:ERROR CODES
ERROR CODES:
Figure4liststheerrorcodesthatmaybedisplayedontheheaterdisplayboard.
Contactaqualiedservicecompanyforassistance.
Code Description Information
bD Internalfault/power-up
error Oninitialtrialforignition.Automaticresetisimmediateoncethegasvalverelay checkresultsareacceptable.
bD
Gasvalvesensed
as“ON”error
Ifvalveisopenwhenitshouldbeclosedtheheaterwillshutdownandgointo
lockout.Blowerwilloperateuntilerrorconditioniscorrected.Automaticrestart
2minutesaftererroriscorrected.
bD
Gasvalvesensed
as“OFF”error
Ifvalveisclosedbutameissensedtheblowerwillrunfor5sthenstartanew
ignitionsequence.Iferroroccurs10timesduringacallforheatthecontrolwill
gointolockout.Automaticresetis60minutes.
bD Dataretrievalerror Ifcontrolinputdataiscorruptedtheheaterwillshutdownandgointolockout.
HF
Flamepresentwithgas
valve“OFF”error
Ifameissensedwiththegasvalveoffthecontrolwillgointolockout.The
blowerwillrununtilerrorconditioniscorrected.Whencorrected,controlwill
runblowerfor5sthenautomaticallyrestartafter2minutes.
PF Electricalsupplywiring
error Thiscodewilldisplayif120Vpolarityisreversed,lowvoltageisdetected,orif thegroundpathisnotsufcient.Resetisimmediateaftererroriscorrected.
AO
Blowervacuumswitch
openerror
Iftheblowerproverswitchdoesnotcloseaftertheblowerstartsthecontrolwill
stoptheignitiontrialgointolockout.Theblowerwillcontinuetorun.Automatic
resetisimmediateaftertheswitchcloses.
AO
Blowervacuumswitch
openwhenexpected
closederror
Iftheblowerproverswitchopensunexpectedlyduringoperationthecontrolwill
shutdownandattempttore-light.Iftheswitchdoesnotcloseaftertheblower
startsthecontrolwillgointolockoutwiththeblowerrunning.Automaticresetis
immediateaftererroriscorrected.
AO
Blowervacuumswitch
openduringpost-purge
error
Iftheblowerproverswitchopensduringthepostpurgecycle(heaterisnotr-
ing)thecontrolwilldisplaytheerrorcode.Thepost-purgecyclewillbecom-
pletedoncetheblowerproverswitchcloses.
AC
Blowervacuumswitch
closedwhenexpected
openerror
Iftheblowerproverswitchisclosedbeforeblowerstart-upthecontrolwillnot
starttheblower.Automaticresetisimmediatewhentheswitchopens.

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Figure4:ERROR CODES(continued)
Code Description Information
IO
Igniteropenerror Ifthecontrolisnotinlockoutandsensesthattheignitercircuitisopenwhenthe
blowerisrunningthecontrolwillturnofftheblowerandgointolockout.Auto-
maticrestart2minaftererroriscorrected.
SF
Thermistorerror Anexcessivetemperaturedifferencebetweenthetwothermistors(5°Formore)
oran“outofbounds”conditiononbothsensors(lessthan10°Forgreaterthan
180°F)willresultintheerrorcode.Automaticrestartis2minutesaftertheerror
iscorrected.
HS
WaterTemperature
SensingError
A)Inletwatertemperaturesensorisreportingatemperatureinexcessof104°F.
Normaloperationresumes2minutesafterinletwatertemperaturesensorreports
temperaturesof104°Forless.Thiserrorfunctionsinbothnormalandremote
thermostatmodes.
or
B)Inletwatertemperaturesensorisreportingatemperaturechangeatarate
fasterthan6°Fin60seconds,indicatingapotentiallydamaginglowwaterow
conditon.Normaloperationresumeswhentemperaturesstabilize.Ifthiscondi-
tionisdetected3times,theheaterwilllock-outuntiltheelectricalpoweris
cycledoffandbackon.
Sb
Keypadbuttonstuck
closederror
Ifoneofthekeypadbuttonsisclosed(orpressed)formorethan30stheerror
codewillbedisplayedbutthecontrolwillcontinuetofunction.Theerrorcode
willbeclearedwhentheconditioniscorrected.
IF Ignitionfailureerror Ifthecontrolexceedsthemaximumnumberofignitionretriesorrecyclesthe
heaterwillshutdownandgointolockout.Automaticresetis60minutes.
CE
Communicationerror Ifcommunicationbetweentheignitionboardandthedisplayboardisnotestab-
lishedwithin3sofpower-upanerrorwillbedisplayed.Aftercommunicationis
established,ifitislostfor30s,theerrorwillbedisplayed.Theerrorcodewill
becleareduponavaliddataexchangebetweenboards.
LO
Limitstringopenerror Ifthelimitstringopenstheheatershutsdownandgoesintolockout.Automatic
restartis2minutesaftertheerrorconditioniscorrectedandthelimitstring
closes.Seebelowformoredetail.
EE EEPROMERROR Anerrorwasdetectedintheignitioncontrolcircuitboard.

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HAYWARD POOL HEATER CERTIFICATE OF LIMITED WARRANTY
Limitedheaterwarranty:
TERMSANDCOVERAGE:Wewarrantourpoolheatertobefreefromdefectsinworkmanshipandmateri-
alsundernormaluseandservice.PursuanttothiswarrantyandsubjecttotheConditionsand
Exceptionsindicatedbelow:
 1.Wewillreplace(costoffreight,installation,costoffuel,andservicelaboratuser’sexpense)with
theprevailingcomparablemodel,or,atouroption,repairanypool/spaheaterthatleaksundernor-
maluseandservicewithinoneyearfromthedateoforiginalinstallationforallusers.
 2.Inaddition,wewillreplace(costoffreight,installation,costoffuel,andservicelaboratuser’s
expense)or,atouroption,repairanypartorpartsofthepool/spaheaterwhichmalfunctionsunder
normaluseandservicewithinoneyearfromthedateoforiginalinstallationforallusers.
LIMITATION ON IMPLIED WARRANTIES:WEARENOTLIABLEFORANYCONSEQUENTIAL
DAMAGESFORBREACHOFANYWRITTENORIMPLIEDWARRANTYOFTHISPRODUCT.Im-
pliedwarranties,includingtheWARRANTYofMERCHANTABILITYandallotherimpliedwarrantiesthat
mayarisefromcourseofdealingorusageoftradeimposedonthesaleofthisheaterunderlawsofthestate
arelimitedindurationtothetermofone(1)yearforallusers.Therearenowarrantieswhichextendbeyond
thedescriptiononthefacehereof.Weshallnotinanyeventbeheldliableforanyspecial,indirect,orconse-
quentialdamages.
EXPENSE OF DELIVERY AND INSTALLATION:
Eachpoolheaterorreplacementparttobefurnishedunderthiswarrantyshallbefurnishedatournearest
distributioncenter.Weshallnotpay,norberesponsibleforshippingordeliverychargestotheplaceofinstal-
lation,norforlaborchargesorothercostsofremovalorinstallation.Everydefectiveheaterorpartreplaced
underthiswarrantyshallbecomeourproperty,andassuch,mustbereturnedtoourdistributioncenterwith
transportationchargespaidbytheuser.Anyreplacementpoolheaterfurnishedunderthiswarrantyshallre-
maininwarrantyonlyfortheunexpiredportionofthiswarranty.
CONDITIONS AND EXCEPTIONS:
Thiswarrantyappliesonlytothepool/spaatitsoriginalplaceofinstallationandonlyfortheoriginal
owner.Itdoesnotapplyifthepoolheaterisinstalledinviolationofanyapplicablecodeorordinance,oris
notinstalled,operatedandmaintainedinaccordancewithourinstructions,orismisused,damagedbyac-
cident,weather,actofGod,freezing,watervoidand/orexcesspressure,alteredordisconnected.Itdoesnot
applywithrespectto:
 1.AheaternotequippedwithCertiedC.S.A.limitcontrolsorequivalentpressurereliefvalve.
 2.Aheateroperatedwithsettingsinexcessof,and/orwithfuelnotconformingtothoseshownonrat-
ingplate;
 3.Aheateronwhichtheserialnumbershavebeenaltered,defaced,orremoved.
 4.Leaksarisingfromdefectiveinstallation;
 5.Productionofnoise,odors,ordiscolored(rusty,etc.)water;
 6.Leakagesubstantiallycontributedtobysediment,limeprecipitateand/orhigherthannormaldis-
solvedsolids(pHabove7.8)inthetank,coppertubes,orwaterways;
 7.Leakagecausedsubstantiallycontributedtobycorrosiveelementsintheatmosphere(suchasthe
storageofchlorineorotherchemicals);
 8.Leakagecausedsubstantiallyorcontributedtobycorrosivepoolwaterinanacidcondition(pHbelow7.2);
 9.Damagecausedsubstantiallyorcontributedtobyanexternalsourceofenergy;
 10.Apool/spaheaterisawatercontainingdevice.Leakageofwaterfromthisdevicecanbeexpected
atsometimeduetomalfunctionorthelimitationsoftheservicelifeofvariouscomponents.
(CONTINUED ON PAGE 16)

Pomona, CA Clemmons, NC Nashville,TN
Tel: [phone] www.haywardpool.com
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
16
Donotinstallthisproductwheresuchleakagecancausedamage.MANUFACTURERISNOTRESPON-
SIBLEORLIABLEFORANYCOSTSINCURREDBYSUCHDAMAGE.
IN NO CASE ARE WE TO BE HELD LIABLE FOR DAMAGE
TO SURROUNDINGAREA OR PROPERTY
CAUSED BY LEAKAGE OR MALFUNCTION.
HOW TO CLAIM UNDER THIS WARRANTY:
Theoriginalowner,upondiscoveringthedefect,mustpresenttheattachedcompletedwarrantyclaimcard
withproofofpurchaseeithertothedealerornotifytheCompanyinwritingateitheraddress:
HAYWARD POOL PRODUCTS, INC.
620 DIVISION ST.
ELIZABETH, NJ 07207
OR
HAYWARD POOL PRODUCTS, INC.
2875 POMONA BOULEVARD
POMONA, CA 91768
Uponreceiptofsuchnoticationweshalldecidewhethertorepairsuchpartsorreplaceanypoolheater,
reservingatalltimestherighttoinspectinordertoverifyanyclaimeddefect.Wealsoreservetherightto
haveourrepresentativesmakeanyinspections,repairs,ortofurnishreplacements.Thiswarrantyisintended
asalegallybindingobligationoftheCompany,enforceableinthecourts.Thiswarrantymaygiveyouspe-
ciclegalrightswhichmayvaryfromstatetostate.
LIMITATION ON LIABILITY:
Allintendedrepresentationshavebeenexpresslysetforthinthisdocument.Thiswarrantymaynotbe
extendedbyoraloranyotheradditionalrepresentations,writtensalesinformation,drawings,orothermal-
function,isstrictlylimitedtorepairorreplacementofthedefectiveheaterorpart,asprovidedhereinand
theCompanyisnotresponsiblehereunderforincidentalorconsequentialorincidentalcostsordamages.
Thecompanyneitherassumes,norauthorizesanypersonorrmtoassumeforus,anyfurtherliabilityor
obligationinconnectionwiththesale,installation,use,maintenance,orexistenceoftheheater.SAFETY
WARNING:Poolheatersareheatproducingappliancesandtoavoiddamageorinjuryintheeventofpos-
sibleoverheatingoftheouterjacket(1)nomaterialsshouldbestoredagainstthejacketand(2)careshould
betakentoavoidunnecessarycontact(especiallybychildren)withthejacket.Whenlightingagasheater,the
lightinginstructionsmustbefollowedexactlytoprevent“ashback”ofexcessgasintheheater.Electronic
ignitionheatersandelectricheatersmusthavethepowershutoffwhenmakingadjustmentsto,servicing,or
comingintocontactwiththeheater.UNDERNOCIRCUMSTANCESSHOULDFLAMMABLEMATERI-
ALS,SUCHASGASOLINEORPAINTTHINNERS,BEUSEDORSTOREDINTHEVICINITYOFTHE
HEATERORINANYLOCATIONFROMWHICHFUMESCOULDREACHTHEHEATER.Foryour
comfort,enjoymentandsafety,pleasereadtheenclosedoperatinginstructionscarefully.
HAYWARD POOL HEATER CERTIFICATE OF LIMITED WARRANTY (CONTINUED)