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Whirlpool Energy Smart Residential Electric Water Heater Installation Instructions And Use & Care Manual page 14

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Diagnostic Code Chart
DIAGNOSTIC LIGHT
INDICATES
CORRECTIVE ACTION*
LIGHTON
Normaloperation
None
NO LIGHT
Nopowerto controlboardor diagnostic
1. Checkfor blownfuses or trippedbreaker
lightburnedout
2. Checkpower leadson controlboardwith meterfor 240 volts
3. If poweris okay,replacecontrol board
1 FLASH
Poweron with no waterin tank
1. Addwater andresettemperaturecontrolsystem.See"Reset
Function"on page 10
2 FLASHES
Watertemperatureexceededhigh limit
1. Makesure upperandlower accessdoors and insulationare
properlyin place
2. Checkelementcircuitsfor resistanceof 5 - 25 ohms
3. Replaceelementif necessaryand resetcontrolsystem
3 FLASHES
Sensorfailure
1. Removepower
2. Checktemperaturesensorfor openor shortedcircuit
3. If no problemis found,replacesensors
4 FLASHES
Upperelementcircuitfailure
1. Removepower
2. Checkelementcircuit for resistanceof 5 - 25 ohms
3. Checkwiresat elementandboardfor damage
4. If this 4 flashesconditioncontinues,replacecontrolboard
5 FLASHES
Lowerelementcircuitfailure
1. Removepower
2. Checkelementcircuit for resistanceof 5 - 25 ohms
3. Checkwiresat elementandboardfor damage
4. If this 5 flashesconditioncontinues,replacecontrolboard
*These instructions are brief and intended as guidance for a qualified service technician. If you lack the necessary
skills to perform these procedures call 1-877-817-6750 for assistance.
14
Troubleshooting
Chart
PROBLEM
POSSIBLE CAUSE(S)
CORRECTIVE ACTION
NO HOTWATER
1. Nopowerto heater
1. Referto "No Light"of DiagnosticCodeChart
2. Hightemperaturelimitshut-down
2. Referto "2 Flashes" of DiagnosticCode Chart
3. Defectivesensor
3. Referto "3 Flashes" of DiagnosticCode Chart
INSUFFICIENT HOT WATER
HIGH OPERATION COSTS
1. Defectivelowerelement
2. Temperature set too low
3. Sedimentor limein tank
4. DefectiveDip Tube
5. Heatertoo smallfor job
6. Wrongpipingconnections
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1.
2.
3.
4.
5.
7. Leakingfaucets
8. Wasted hot water
9. Longrunsof exposedpipe
10.Hotwaterpipingon outsidewall
1. Temperature set too high
2. Sedimentor limein tank
3. Heatertoo smallforjob
4. Leakingfaucets
5. Wasted hot water
6. Longrunsof exposedpiping
6.
7. Hotwaterpipingin exposedwall
7.
1. Upperelementdefective
1.
2. Leakingfaucets
2.
1. Excessivewaterpressure
1.
2. Closedsystem
2.
3. DefectiveT & P valve
3.
1. Sulfidesinthe water
1.
Referto "5 Flashes" of DiagnosticCode Chart
Set temperatureto desiredsetting
Drain.Determineif water treatmentis needed
ReplaceDip Tube
Checkand Installadequatewater heater
Correctpiping
Repairfaucets
Advisecustomer
Insulatepiping
Insulatepiping
Lowertemperaturecontrolor changeto EnergySaverMode
Drain.Flush-Provide water treatmentif needed
Install adequateheater
Repairfaucets
Advisecustomer
Insulatepiping
Insulatepiping
SLOW HOTWATERRECOVERY
Referto "4 Flashes" of DiagnosticCode Chart
Repairfaucets
DRIPFROMT&P VALVE
Usepressurereducingvalve andpressurereliefvalve(See page
6)
Seepage 6, "ClosedSystem/Thermal E xpansion"
ReplaceT & Pvalve
WATERODOR
Seepage 11,"Water Odor"

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