Howe 2000-RLE - Page 38

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Problem PossibleCause PossibleSolution
DriveMotorwillnotrun
or
IceFlakerinOverloadCondition
1. DefectiveControlModule(CM). 1. Verify24VACpresentacrossTerm1(purple)andTerm3(red)atControlModule
(CM).CheckvoltagebetweenTerm1andTerm6(blue).Ifnovoltagepresent,
ControlModule(CM)maybe
defectiveandneedtobereplaced.
2. DefectiveDriveMotor. 2. VerifycontrolvoltageatDriveMotorwireleads.Ifvoltageispresent,DriveMotor
maybedefectiveandneedtobereplaced.
3. DefectiveMotorRelay(R1). 3. Placetwowirejumpersbetweenterminals#9(black)and#11(blue/brown)and
terminals#1(blue/brown)and#3(black)atMotorRelay(R1).IfDriveMotorstars,
MotorRelay(R1)maybedefectiveandneedtobereplaced.
4. SleeveBearingsareseized. 4. RemovetheGearMotorfromtheMountingHubortheSpeedReducerfromTop
CastingandtrytopushtheIceBladebyhand.IftheIceBladewillnotmove,the
SleeveBearingsmaybeseizedandneedtobereplaced.
5. GearMotororSpeedReducerisseized. 5. RemoveGearMotororSpeedReducerandbringvoltagetothemotor.Ifthe
outputshaftcannotturnwhilenotattachedtotheIceFlaker,itmaybeseizedand
needtobereplaced.
6. MotorOverloadsettingistoolow. 6. RaisetheMotorOverloadsettingattheControlModule(CM).Verifythe
amperagedrawisincorrespondencewiththenameplate.
7. Loosewiring. 7. Checkallwireterminalsandtightenasnecessary.
WaterPumpwillnotrun
1. DefectiveControlModule(CM). 1. Verify24VACpresentacrossTerm1(purple)andTerm3(red)atControlModule
(CM).CheckvoltagebetweenTerm1andTerm6(blue).Ifnovoltagepresent,
ControlModule(CM)maybedefectiveandneedtobereplaced.
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2. DefectiveWaterPump. 2. VerifycontrolvoltageatWaterPumpwireleads.Ifvoltageispresent,WaterPump
maybedefectiveandneedtobereplaced.
3. DefectiveMotorRelay(R1). 3. Placetwowirejumpersbetweenterminals#9(black)and#11(blue/brown)and
terminals#1(blue/brown)and#3(black)atMotorRelay(R1).IfWaterPump
starts,MotorRelay(R1)maybedefectiveandneedtobereplaced.
4. Loosewiring. 4. Checkallwireterminalsandtightenasnecessary.
Icedoesnotharvest
atthebottomofEvaporator
1. TXVisunderfeeding. 1. AdjustrefrigerationtoIceFlaker.
2. Systemisshortofrefrigerant. 2. CheckforbubblesintheSightGlass.Ifpresent,chargesystemasneeded.
3. ImproperlocationofTXVsensingbulb. 3. Relocatedbulbto4:30clockpositionasoriginallysetbyfactory.
Icedoesnotharvestononeside
orangularsectionofEvaporator
1. SleeveBearingsareworn. 1. RemoveSpeedReducerorGearMotorandcheckfor“play”inSleeveBearings.
Replaceifworn.
2. IceBladeclearanceistoohigh. 2. AdjustIceBladeclearancetopropersetting.
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Iceaccumulatesontheribsof
BottomCasting
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1. AmbientTemperatureistoolow. 1. Ifambienttemperatureisbelow50°F,relocateIceFlakertoawarmerarea.
ContactHoweaboutLowAmbientKit.
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