A.O. Smith 310 Especificaciones

TroubleshootingGuide1|Page Non‐CondensingModelsOn‐DemandWaterHeaterTroubleshootingGuide 

TroubleshootingGuide10|Page UNITDOESNOTIGNITEWHENWATERGOESTHROUGHIT• Istheflowrateover0.75gpm?Seeiftheunitinitiateswhenyo

TroubleshootingGuide11|Page UNITHASPOWER,GAS,ANDWATERBUTDOESNO TTURNON• Fornewunitinstalls,checktomakesuretheunitisnotplu

TroubleshootingGuide12|Page TM‐RE30(Optional)5.3TROUBLESHOOTING‐ERRORCOD ES • Allunitsareselfdiagnosticforsafetyandconveniencew

TroubleshootingGuide13|Page  ERRORCODE031[510(T‐D2)],ONEFLASH/03[110(T‐KJR 2),310(T‐K4)]INCORRECTDIPSWITCHSETTINGS1) Turnofft

TroubleshootingGuide14|Page gasmeter.b. Forpropaneunits,colderperiodsofthedayresultinacoldregulatorandmaycausethisproblem.

TroubleshootingGuide15|Page  ERRORCODE311[510(T‐D2)],TWOFLASHES/31[110(T‐KJR2),310(T‐K4) ]OUTPUTTHERMISTOR1) Checkthatthewire

TroubleshootingGuide16|Page ERRORCODE391[510(T‐D2)],TWOFLASHES/39[110(T‐KJR2),310(T‐K4) ]AIR‐FUELRATIORODFAILURE1) Checkthatth

TroubleshootingGuide17|Page ERRORCODE611[510(T‐D2)],FOURFLA SHES/61[110(T‐KJR2),310(T‐K4)]ABNORMALFANMOTOR1) Turnoffpowersupply

TroubleshootingGuide18|Page  ERRORCODE721[510(T‐D2)],SIXFLASHES/72[110(T‐KJR2),310(T‐K4)]FALSEFLAMEDETEC TION1) Firstandforemo

TroubleshootingGuide19|Page 5.4TROUBLESHOOTING‐PROCEDURESVerifyingproperDipswitchsettings…p.19Drainingtheunit………………………………p.21Cleani

TroubleshootingGuide2|Page TableofContents1. SPECIFICATIONS.……………………………………………………………………………..……………………32. INTRODUCTION.

TroubleshootingGuide20|Page Table4–510(T‐D2)DipswitchSettings:UPPERBANKNo. Function ONposition OFFposition1 Gastype Propane

TroubleshootingGuide21|Page DRAININGTHEUNIT: 1) Closethemanualgasshutoffvalve.2) Turnoffpowertotheunit,andthenturnonagain.

TroubleshootingGuide22|Page 5) Slowlyre‐openthemanualgasvalve.Checktoseethattherearenogasleaks.6) Opensomeofthefixturestha

TroubleshootingGuide23|Page ADJUSTINGMAN IFOLDPRESSURE: Themanifoldgaspressureofthetanklessunitcanbeadjustedbythefollowingproced

TroubleshootingGuide24|Page CHECKINGTHEOVERHEATCUTOFFFUSE(OH CF):1) LocatethewhiteOHCFwhichwrapsaroundtheheatexchanger.2) Fi

TroubleshootingGuide25|Page 6. MAINTENANCE Become familiar with the components before attempting these procedures, utilizing the Ins

TroubleshootingGuide26|Page CLEANINGTHECOMBUSTIONCOMPONENTSProcedureforcleaningthefan,burner,FlameSensorandAFR,asusedbyallServi

TroubleshootingGuide27|Page 6) BURNERASSEMBLY‐Nowproceedtoremovetheburnerassembly.a. RemovethefivewidepanheadPhilipsscrews

TroubleshootingGuide28|Page 9) COMBUSTIONCHAMBER‐Inspectthecombustionchamberwithabrightflashlight.a. Removetheexhaustventingfr

TroubleshootingGuide29|Page REPLACINGTHEHEATEXCHANGERTherearemanypossiblecausesofaheatexchangerfailure:• Contaminated air wit

TroubleshootingGuide3|Page  1.SPECIFICATIONSTable1

TroubleshootingGuide30|Page 5) FANa. Thefanisheldinbytwoscrews.Theyfacethebottomoftheheater,andcanbereachedbytwoholes

TroubleshootingGuide31|Page CHECKINGTHEFLOWSENSORIfthetanklessunitisproperlyconnectedtowater,gas,andpowersuppliesbutthefan

TroubleshootingGuide32|Page DESCALINGTHEUNITHardwaterisasevereproblemforthecoppercoilsinsideheatexchangers.Heatexchangerfail

TroubleshootingGuide4|Page 2.INTRODUCTIONThismanualprovidesthenecessaryinformation fortroubleshootingthe110(T‐KJr2),310(T‐K4),510

TroubleshootingGuide5|Page 3.NORMALOPERATIONBecomingfamiliarwithhowatanklesswaterheaternormallyoperates may help to figure out

TroubleshootingGuide6|Page  4.INSTALLATION 1. Follow all local codes, or in the absence of local codes, follow the most recent e

TroubleshootingGuide7|Page 5.TROUBLESHOOTING 5.1PRELIMINARYCHECKLISTCheckallofthesebasicitemsbeforeproceedingontoanyothersection

TroubleshootingGuide8|Page 5.2TROUBLESHOOTING‐GENERALPROBLEMSProceedtotheErrorCodessectionifanerrorcodeisidentified.Forotherc

TroubleshootingGuide9|Page • Theflowadjustmentvalvecouldbeobstructedduetohardwaterscaleordebris,causinglowerthanexpectedwater