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Dometic MANUALThis section addresses the most common system problems associated with Refrigerators supplied by The DometicRefrigeratorsCorporation. Our intent is to provide you with a guideline of checks to make, should you encounter one of thefollowing symptoms.Dometic Manual tch18CB13C,14C37,3825-30352. No electric operation.OperationAC VoltsHeating ,383634333525-303. No gas operation — no spark.OperationDC VoltsIgniterElectrodeHigh Voltage 4353525-304. No gas operation — sparks but no flame.OperationLP gasFilterOrificeBurnerShut-off ValveSafety ValveThermocoupleThermocouple Adapter,(Top Mount Controls Only)18C1A8C3A2A2A2C3C4C37,3812331412123232325. No cooling on any mode.OperationLevelAmbient TemperatureCooling Unit18C1J5J6J37,388990906. No cooling on gas — cools properly on othermode(s). (RM2604 & RM2804 ONLY)LP GasThermostatFilterOrificeBurnerFlue BaffleFlue Tube1A5C8C3A2A3A3A123333141212,13147. No cooling on electric — cools properly on othermode(s). (RM2604 & RM2804 ONLY)AC VoltsHeating 33525-30SYMPTOM1.No operation.PAGE1
Dometic .Insufficient cooling on all modes.OperationLevelVentilationAmbient TemperatureAir LeaksThermostatCooling Unit18C1J2J5J3J6C6J37,388989908933909.Insufficient cooling on electric — cools properly on other mode(s).AC VoltsHeating ElementsThermostat17C17C6C36373310.Insufficient cooling on gas.Cools properly on other mode(s).LP Gas PressureThermostatFilterOrificeBurnerFlue BaffleFlue Tube1A6C8C3A2A2A,3A3A123333141212,131411.Freezes on electric – cools properly on othermode(s). (RM2604 & RM2804 ONLY)ThermostatWiring9CB3325-3012.Freezes on gas – cools properly on othermode(s). (RM2604 & RM2804 ONLY)Bypass ScrewThermostat1C5C323313.Won't stay lit on gas.LP GasSafety ValveThermocoupleThermocouple Adapter,(Top Mount Controls Only)Flame Failure Meter(Top Mount Controls Only)Flue BaffleFlue Cap (Bottom MountControls 143A2A141214.Rapid formation of frost.Food StorageAir LeaksInterior Liner Seal to FrameHigh Humidity7J3J9J8J9089909015.No DC operation – cools properly on AC andgas.DC VoltsHeating 11C13C,14CB10C36343525-303416.Insufficient cooling on DC– cools properly onAC and gas.DC VoltsHeating ElementRelay (RM2610/2810/2604/2804)15C11C10C363434ElectrodeLP GasBypass 610/RM2810/RM2604/RM2804/RM2552/RM255317.On gas mode, sparks while flame is lit.2
Dometic MANUALRefrigeratorsAES MODELS: RM3604, RM3804, RM4804 andRM7030 with Product No. 921890201, 921890301SYMPTOMCAUSEREFERTOSECTIONPAGEDC VoltsFuseWiringUpper PC BoardCircuit Board4F5FB5F5F657118,19,2167-7070,712. No operation – has panel lights.ThermostatUpper Circuit BoardSolenoidWiringCircuit Board5F5F5FB5F6567-7065,6618,19,2170,713. Operating OK – no panel lights.DC VoltsWiringUpper Circuit BoardCircuit Board4FB5F5F6518,19,2167-7070,714. No AC operation – operates on DC and gas.AC VoltsHeating ElementUpper Circuit BoardWiringThermostatCircuit Board2F3F5FB5F5F656567-7018,19,216570,715. No DC operation – operates on AC and gas.DC VoltsHeating ElementUpper Circuit BoardWiringRelayThermostatCircuit Board4F3F5FB5F5F5F656567-7018,19,21666570,716. No gas operation – operates on AC and DC.LP GasManual Gas ValveIgniterHigh Voltage CableElectrodeSolenoidUpper Circuit BoardWiringCircuit 70,717. Insufficient cooling on all modes.VentilationLevelingAmbient TemperatureAir LeaksThermostatCooling Unit2J1J5J9J5F6J8989909065901.No operation – no panel lights.3
Dometic .Insufficient cooling on AC.Cools properly on DC and gas.AC VoltsHeating Element2F3F65659.Insufficient cooling on DC.Cools properly on AC and gas.DC VoltsHeating ElementWiring4F3FB656518,19,2110.Insufficient cooling on gas.Cools properly on AC and DC.LP gasOrificeFlue BaffleFlue TubeFlue CapBurner1A3A2A,3A3A3A2A121412,1314141211.Freezes on all modes.ThermostatDC Volts5F4F656512.Changes preset mode.DC VoltsWiringCircuit Board4FB5F6518,19,2170,7113.Flame failure light within 10 seconds.IgniterHigh Voltage CableElectrodeWiring5F5F5FB66666618,19,2114.Flame failure light after 3 minutes.LP GasManual Gas 3A2A,3AB5F121265,66141218,19,216615.Interior Light ON when door is closed.WiringDoor SwitchDoor PositionB5F4J18,19,21679016.Rapid formation of frost.Food StorageInterior Liner Seal to FrameHigh HumidityAir Leaks7J9J8J3J909090894
Dometic MANUALRefrigeratorsAMES/AES Refrigerator Models including: S1521, S1531, S1621, S1631, S1821, S1831, RM2607,RM2611, RM2807, RM2811, RM3607 and RM3807, the ROYALE/ELITE Refrigerator Models includingRM3662, RM3663, RM3862, RM3863, RM4872, RM4873, RM7732, RM7832, RM7130, and RM7030 withProduct No. 921890401.SYMPTOMCAUSEREFER TO SEC.PAGEREFRIGERATOR SECTION1. No operation - no panel lightsOperationDC VoltsFuseWiringUpper Circuit BoardLower Circuit 245152,532.No operation - has panel lightsOperationDC VoltsThermistorFusesUpper Circuit BoardWiringLower Circuit 22,23,2452,533.No AC operation - operates on othermode(s)OperationAC VoltsFuseHeating ElementUpper Circuit BoardWiringLower Circuit 3,2452,534.No DC operation - operates on othermode(s)OperationDC VoltsFuseHeating ElementUpper Circuit BoardWiringLower Circuit 22,23,2452,535.No Gas operation - operates on othermode(s)OperationLP GasManual Gas ValveIgniterHigh Voltage CableElectrodeSolenoidUpper Circuit BoardWiringLower Circuit 5115,16,17,22,23,2452,536.Insufficient cooling on all modes.VentilationLevelingAmbient TemperatureAir LeaksThermistorCooling UnitThermistor Adjuster2J1J5J3J9D6J10D898990894890485
Dometic MANUALRefrigeratorsSYMPTOMCAUSEREFER TOPAGE7.Insufficient cooling on AC - cools properly onother mode(s).AC VoltsHeating ElementLower Circuit Board6D7D13D474752,538.Insufficient cooling on DC - cools properly onother mode(s).DC VoltsHeating ElementWiringLower Circuit ficient cooling on Gas - cools properly onother mode(s).LP GasOrificeFlue BaffleFlue TubeFlue Cap (if equipped)BurnerLower Circuit Board1A3A2A,3A3A3A2A13D121412,1314141252,5310. Freezes.ThermistorThermistor AdjusterLower Circuit BoardUpper Circuit Board9D10D13D12D484852,535111. Changes preset mode.OperationDC VoltsWiringUpper Circuit BoardLower Circuit 2,5312. Check light on.DC VoltsWiringLP GasManual Gas ValveSolenoidOrificeBurnerLower Circuit ,22,23,24121249141252,536013. Interior light on when door is closed.WiringDoor SwitchDoor PositionB13D4J15,16,17,22,23,24539014. Rapid formation of frost.Food StorageInterior Liner to FrameHigh HumidityAir Leaks7J9J8J3J9090908915. Water on frame.Interior Liner to FrameHigh HumidityAir LeaksClimate Control Heater9J8J3J13D909089536
Dometic MANUALRefrigeratorsRM2652, RM2852, RM2612 & RM2812 DOMETIC REFRIGERATORSSYMPTOMCAUSEREFER TOPAGEREFRIGERATOR SECTION1. No operation - no panel lightsOperationDC VoltsFuseWiringUpper Circuit BoardLower Circuit Board1E7E8EB8E8E55,5657,5862206060,61,622.No operation - has panel lightsOperationDC VoltsThermistorFusesWiringLower Circuit Board1E7E8E8EB8E55,5657,5858622060,61,623.No AC operation - operates on gas modeOperationAC VoltsFuseHeating ElementWiringLower Circuit Board1E5E8E6EB8E55,565762572060,61,624.No Gas operation - operates on AC modeOperationLP GasManual Gas ValveIgniterHigh Voltage CableElectrodeSolenoidWiringLower Circuit .Insufficient cooling on all modes.VentilationLevelingAmbient TemperatureAir LeaksThermistorCooling Unit2J1J5J3J8E6J8989908958906.Insufficient cooling on AC - cools properly ongas mode.AC VoltsHeating ElementLower Circuit Board5E6E8E575760,61,627
Dometic MANUALRefrigeratorsSYMPTOM7.8.9.Insufficient cooling on Gas - cools properly onAC mode.Freezes.Check light on.CAUSEREFER TOPAGELP GasOrificeFlue BaffleFlue TubeBurnerLower Circuit ThermistorLower Circuit Board1E8E8E55,565860,61,62DC VoltsWiringLP GasManual Gas ValveSolenoidOrificeBurnerThermocoupleLower Circuit 0. Interior light on when door is closed.WiringDoor SwitchDoor PositionB8E4J20629011. Rapid formation of frost.Food StorageInterior Liner to FrameHigh HumidityAir Leaks7J9J8J3J9090908912. Water on frame.Interior Liner to FrameHigh HumidityAir LeaksClimate Control Heater9J8J3J8E90908962ICE MAKER SECTION/WITHOUTCOMPRESSOR13. Ice Maker fails to start.OperationArm in Up PositionAC VoltageWater ValveIce Maker Cycle2G1G4G1G1G73727773738
Dometic MANUALRefrigeratorsSYMPTOMCAUSEREFER TO SEC.PAGE14. Ice Maker won’t make ice.Blades Frozen in IceAC VoltageWater ValveIce Maker Cycle1G4G1G1G7277737315. Keeps making ice and won’t shut off.Shut-off arm1G7216. Not making enough ice.OperationMold ThermostatCube SizeIce Maker Cycle2G1G3G1G7372767317. Too much water is coming out.Water Fill AdjustmentWater Valve3G1G767318. Ejector blade frozen into ice cubes.Water Fill AdjustmentWater Valve3G1G767319. Unit is hooked-up no water comes in.WaterWater Valve3G1G777320. Ice maker is running but won’t make cubes.WaterShut-Off ArmMold ThermostatMold Switch3G1G1G1G7772727321. Ice maker will not make ice.Ice EjectorMold HeaterTiming Motor1G1G1G727273ICE MAKER SECTION22. Ice Maker fails to start.OperationArm in UP PositionAC VoltsSwitch On/Off1H2H6H2H7879847823. Fan Runs – No compressor.WiringStarting DeviceCompressor6H2H2H847878,799
Dometic MANUALRefrigeratorsSYMPTOMCAUSEREFER TO SEC.PAGE24. Compressor runs but kicks ON and OFF.Starting DeviceRefrigerant System2H7H788525. Compressor runs – no fan.Fan Motor2H7926. Ice maker trips breaker.Low VoltageHigh AmperageCompressorBreaker6H6H2H6H848478,798427. Ice maker won't make ice.Ice Maker AssemblyBlade Frozen in IceSwitchAC VoltageWater Valve2H2H2H6H2H807978848028. Water in bucket.LevelWater fill adjustmentWater Valve1J4H2H89838029. Ice is too soft and wet.Air FlowCondenser Fins4H2H838030. Keeps making ice and won't shut off.Shut-Off ArmShut-Off Switch2H2H797831. Not making enough ice.OperationThermostat, MoldCube SizeAir FlowCondenser FinsFan Motor1H2H4H4H3H2H78798383807932. Too much water is coming out.Water Fill AdjustmentWater Valve4H2H838033. Ejector blade frozen into ice cubes.Water Fill AdjustmentWater Valve4H2H838034. Unit is hooked-up – no water comes in.Water SupplyWater Valve8H2H858035. Ice maker is running but won't make any cubes.Water SupplyShutoff ArmThermostat, MoldMold Switch8H2H2H2H8579798010
Dometic MANUALRefrigeratorsSYMPTOMCAUSEREFER TO SEC.PAGE36. Will not eject ice.Ice EjectorMold HeaterTiming Motor2H2H2H79798037. Unit leaks water.Installation5H8311
SECTION DometicA.MANUALRefrigeratorsLP GAS REQUIREMENTS1A. LP GAS REQUIREMENTSThe LP gas pressure to the refrigerator should be 11 incheswater column with half of all BTU’s of the RV turned on. Withall other appliances turned off, the pressure to the refrigerator should not exceed 12 inches water column. To checkthe gas pressure when the refrigerator is operating, thereis a pressure test housing located just prior to the orifice.FLUE BAFFLEThe flue baffle is designed to concentrate the heat, from thegas flame, at a certain area of the flue tube. It should becleaned periodically, at least once a year. To clean, removefrom the flue tube and check for any damage, then cleanthoroughly. See the chart on the next page for dimensionsand position.T PRESSUREEST HOUSINGTEST HOUSING2A. LP GAS COMPONENTSSHUT-OFF VALVEIt is the valve where the incoming LP gas supply isattached. This valve is direct coupled to the selector switch.When the selector switch is turned to the electric mode, theshut-off valve is automatically closed. When this sameswitch is turned to the LP gas mode, the valve opens andallows gas flow and the electric circuit to the heatingelements is also automatically interrupted. To check theshut-off valve, remove and inspect for any obstructions.BURNERThe burner is a slotted metal tube located below the fluetube on the cooling unit. It should be level and the slots,in the burner, should be directly below the flue tube. Theburner should be cleaned periodically, at least once ayear. To clean the burner, remove from the refrigeratorand check for any foreign residue that could cause adeflection of the gas flow or the flame. Next, soak theburner in an alcohol based solvent and allow to air dry.After cleaning, reinstall in the refrigerator.12
Dometic MANUALRefrigerators3A. FLUE BAFFLE DIMENSIONS AND POSITIONSModelLength of FlueBaffle Assembly(Flue Baffle & Wire)Flue BaffleProper Baffle Position(from Burner to Bottomof Baffle)RM2310RM241018-3/4"5/8" W X 4" L3-1/4"RM251021-3/4"13/16" W X 4" L3-1/8"RM2610RM260431-9/16"3/4" W X 5-1/4" L1-5/8"RM2810RM280437-1/8"3/4" W X 6" L1-3/4"RM2452RM245322-1/2"3/4" X 3-7/8" L1/1/2"RM2552RM255325-1/2"3/4" L X 3-7/8" L1-1/2"RM261231-9/16"3/4" W X 5-1/4" L1-5/8"RM281237-1/8"3/4" W X 6" L1-3/4"RM265231-5/8"13/16" W X 5-3/16" L1-7/8"RM285238"13/16" W X 5-3/16" L1-7/8"S1521S153118-3/16"3/4" W X 4" L2-1/4"S1621S163131-9/16"3/4" W X 5-1/4" L1-5/8"S1821S183137-1/8"3/4" W X 6" L1-5/8"RM2607RM261131-9/16"3/4" W X 5-1/4" L1-5/8"RM2807RM281137-1/8"3/4" X 6" L1-3/4"RM360731-9/16"3/4" W X 5-1/4" L1-5/8"RM380737-1/8"3/4" W X 6" L1-3/4"RM3662RM366331-5/8"13/16" W X 5-3/16" L1-7/8"RM3862RM3862RM4872RM48733813/16" W X 5-3/16" L1-7/8"RM360431-9/16"3/4" W X 5-1/4" L1-5/8"RM3804RM480437-1/8"3/4" W X 6" 3/16"13/16"13/16"WWWWXXXX6"6"6"6"LLLL1"1"1"1"13
Dometic MANUALRefrigeratorsFLUE CAP (Only on applicable models)The flue cap is located at the top ofthe flue tube and is attached with ascrew. It must be properly attachedor flame outage could occur.FLUE TUBEORIFICEThe orifice is a small brass fitting that has a ruby membranethat is laser beam drilled and is mounted on the gas line justprior to the burner. The orifice should be cleaned periodically, at least once a year, by using an alcohol basedsolvent and allowing to air dry. Never use a drill bit or jet tipcleaner to clean any orifice as these devices will damagethe factory machined part and create a potentially dangerous condition.The correct size orifice for your model refrigerator, refer tothe TECHNICAL DATA section.The flue tube is a component of the cooling unit. It must becleaned periodically, at least once a year. To clean, removeflue cap and flue baffle, then cover the burner and clean byusing a flue brush, Dometic Part Number 0151404001. Ifthe flue tube becomes coated with scale or residue fromcombustion of LP gas, the efficiency of gas operationdecreases.NOTE: After cleaning be sure to reinstall the flue baffle andflue cap (if equipped).14
SECTION B.Dometic MANUALRefrigeratorsRM7130 TYPICAL WIRING DIAGRAMRM7832 TYPICAL WIRING DIAGRAM15
Dometic MANUALRefrigeratorsRM7732 TYPICAL WIRING DIAGRAM16
Dometic MANUALRefrigeratorsTYPICAL WIRING DIAGRAM FORRM7030 (PRODUCT NO. 921890401)LM6P3B1CA3 WHITEB3 11 27RJ221J8A2B2J10OJ5WHITEWHITESC3 BLUE4J4QJ31T4TT -51U1I12V DC231122F2GHD120 VOLTS ACNN1WHITE2345K6CIRCUIT BOARD POWERBCCIRCUIT BOARD DISPLAYD GAS VALVEKREIGNITERFTHERMOCOUPLEELECTRODERETAINER FOR BURNEROQABSORPTION UNITLMSWITCHHEATER 120V ACRFUSE 5ASWITCHTERMINAL BLOCKTUBLUEHEATING CABLESLIGHTNBROWNFUSE 3APTERMINAL BLOCKJ TERMINAL MINAL BLOCKRETAINER FORCIRCUIT BOARD POWER17
Dometic MANUALRefrigeratorsTYPICAL WIRING DIAGRAM FORRM7030 (PRODUCT NO. 921890201 & 921890301)18
Dometic MANUALRefrigeratorsTYPICAL RM4804 3-WAY 12/120 VOLTS WIRING DIAGRAMTYPICAL RM4804 2-WAY 120 VOLTS WIRING DIAGRAM19
Dometic MANUALRefrigeratorsTYPICAL WIRING DIAGRAM - RM2652, RM2852, RM2612, RM281220
Dometic MANUALRefrigeratorsRM3604 & RM3804 3-WAY 12/120 WGREENBLUEVIOLETGRAYWHITEDD12V 12V 12V 12V BLACK4444AB85Z86 —8712 VOLTDCAIGN. LOCK1CLEBLACKGRSTIYUVKXMMOE OFF POSITIONAQSNPOUQDBLACKBROWNREDORANGEBBLACKWHITEWFG XCH1C 12V ACYC 120V AC123IDD2I GRAYBLACKA 2B 2CIRCUIT BOARDB TERMINAL BLOCKHEATERD CONNECTORMAIN SWITCHF DOOR SWITCHLIGHTH THERMOSTATGAS VALVE COILJ THERMOCOUPLEREIGNITERL TIME FUSE 3–3.15 AMPGAS FLAME WARN. LAMPN AC/GAS FUNCTIONSWITCHP AC/GAS FUNCTION LAMPGAS FUNCTION SWITCHR GAS FUNCTION LAMPAES FUNCTION SWITCHT AES FUNCTION LAMP120V AC MODE LAMPV 12V DC MODE LAMPDELAY MODE LAMPX ABSORPTION UNITGAS MODE LAMPZ MODE SWITCHRELAY120VOLTS NBLUEDDABCDB5—KPL ROWNRM3604 & RM3804 2-WAY 120 BLUEDD12V 12V 12V 12V ENBLUEVIOLETGRAYWHITE4444ABA4—KPL ORANGEBROWN12 VOLTDCIGN. KRSTYVXME OFF POSITIONABLACKBROWNREDORANGEBBLACKWHITEDACIRCUIT BOARDB TERMINAL BLOCKCHEATERD CONNECTOREMAIN SWITCHF DOOR SWITCHGLIGHTH THERMOSTATIGAS VALVE COILJ THERMOCOUPLEKREIGNITERL TIME FUSE 3–3.15 AMPMGAS FLAME WARN.LAMPQSPQWGFXHYCV DELAY MODE LAMPABSORPTION UNITX GAS MODE LAMPMODE SWITCH120VOLTS AC1C 120V AC31I GRAYBLACKDP GAS FUNCTION SWITCHGAS FUNCTION LAMPR AES FUNCTION SWITCHAES FUNCTION LAMPT 120V AC MODE LAMP2CDA 2B 2 YELLOW21
Dometic MANUALRefrigeratorsROYALE & ELITETYPICAL 3-WAYWIRING DIAGRAM293267600422
Dometic MANUALRefrigeratorsROYALE & ELITETYPICAL 2-WAYWIRING DIAGRAM29326750023
Dometic MANUALRefrigeratorsAMES & AESTYPICAL 3-WAY WIRINGDIAGRAMCircuit Board PowerCircuit Board DisplayThermistorGas ValveReigniterThermocoupleElectrodeRetainer for BurnerTerminal BlockTerminal StripAbsorption UnitFuse 3AFuse 5AHeater 120V ACFuse 35AHeater 12V DCSwitchLightHeating CableSwitchTerminal BlockTerminal BlockWhiteBlackGreenGreen/YellowGrayBrownAMES & AESTYPICAL 2-WAY WIRING DIAGRAMCircuit Board PowerCircuit Board DisplayThermistorGas ValveReigniterThermocoupleElectrodeRetainer for BurnerTerminal BlockTerminal StripAbsorption UnitFuse 3AFuse 5AHeater 120V ACSwitchLightHeating CableSwitchTerminal BlockTerminal BlockWhiteBlackGreenGreen/YellowGrayBrown24
Dometic MANUALRefrigeratorsRM2604 & RM2804 2-WAY 120 VOLTSGH12 V OLTS DC120 V OLTS A C1G24772 1A47a 4a2C1a7aK2a44BALHEF4aI4121221D1120 V OLTS A C431NLA SWITCHB THERMOSTAT120 V OLTS A CF1C12 V OLTS DCREIGNITERLAMP1C TERMINAL BL OCKD TERMINAL BL OCKE12AF REIGNITERC1 WHITE2 BLACK2aI3 GREEN4 GREEN/YELLOWHEATERE221aG LAMPH DOOR SW ITCHBDJINDICATION L AMPIJ TERMINAL ST RIPNLABSORPTION UNITKL BRACKETRM2604 & RM2804 3-WAY 12/120 VOLTSJ K120 V OLTSDC12VOLTSAC2176 5 412B6a41FA5aB2aH1aBE868785301J2C11D12 V OLTS DCREIGNITERLAMP1I74A4G HEATERH RELAY431127aIH4aA SWITCHB THERMOSTATC TERMINAL BL OCKD TERMINAL BL OCKE TERMINAL BL OCKF HEATERKELWHITEBLACKGREENGREEN/YELLOW12 V OLTS DC MODE12412 V OLTSDCHEATERN120 V OLTS A C LNLH4212342A2142G52a 1aD262 1A7a 6a 5a 4a120 V OLTS A C MODE12 V OLTS DC MODEREIGNITERIIJ LAMPLKLMNODOOR SW ITCHINDICATION L AMPTERMINAL ST RIPABSORPTION UNITBRACKET25
Dometic MANUALRefrigeratorsTYPICAL
dometic refrigerators diagnostic service manual Keywords: dometic manual refrigerators diagnos
