Moyer Diebel MH-6NM3, MH-6LM3, MH-60M3 technical manual Troubleshooting, Condition Cause Solution

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TROUBLESHOOTING

TROUBLESHOOTING

Perform the seven checks listed below in the event that your dishwasher does not operate as expected.

1.All switches are ON

2.Drain-overflow assemby is in place and seated

3.Wash and rinse nozzles are clean

4.Wash and rinse pipe assemblies are installed correctly

5.Scrap screens are properly positioned

6.Thermostat(s) are properly adjusted

7.Detergent and rinse additive dispensers are adequately filled

If a problem still exists, use the following table for troubleshooting

CONDITION

CAUSE

SOLUTION

Machine will not start

Doors not closed

Make sure doors are fully closed

 

Door safety switch faulty

Contact your service agency

 

Start switch faulty

Contact your service agency

 

Main switch off

Check disconnect at main panel

 

Overload protector tripped

Reset overload in Control Box

 

 

 

Machine washes

Extended wash switch in

Push Extended wash switch

constantly

extended wash position

down to the off position

 

 

 

Low or no water

Main water supply is turned off

Turn on house water supply

 

Drain-overflow assembly is not

Place and seat drain-overflow

 

in place and seated

 

 

Machine doors not fully closed

Close doors securely

 

Faulty fill valve

Contact your service agency

 

Machine not filled initially

Push Power switch UP to fill

 

Clogged strainer in fill valve

Clean or replace

 

 

 

Continuous water filling

Stuck or defective Fill Timer

Contact your service agency

 

Fill valve will not close

Clean or replace

 

Drain-overflow not in place

Install drain-overflow assembly

 

 

 

Wash motor not running

Overload protector tripped

Reset overload in Control Box

 

Defective motor

Contact your service agency

 

 

 

Wash tank water

Incoming water temperature

Raise temperature to:

temperature is low

at machine too low

110-140°F/43-60°C for MH60

when in use

 

180°F/82°C for MH-6N

 

 

120°F/49°C-140°F/60°C for MH6L

 

Defective thermometer

Check or replace

 

Defective thermostat

Check for proper setting

 

 

or replace

 

Defective heater element

Check or replace

 

Defective solenoid valve

Check or replace

 

Heater elements

Clean and delime

 

have soil/lime buildup

 

 

 

 

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Contents MH-6LM3 MH-6NM3Moyer Diebel, US Moyer Diebel, Limited Comments Revision HistoryContents List of Figures Limited Warranty Welcome to Moyer Diebel IntroductionAccessories Standard Equipment includesOptions MH-60 only Model Unpack the dishwasher InstallationPlacement for Corner Operation Electrical Connections InstallationHinged Control Panel 20-22 PSI/138-151.8 kPa InstallationWater Connections Drain ConnectionsVentilation Chemical Connections Chemical Dispenser Signal Terminal BlockModels MH-60 and MH-6N do not require sanitizer MH-60, 6NMH-60, 6N, 6L MH-6L OnlyInitial START-UP Complete the installationInitial START-UP Check Wash Water TemperaturePower Check Final Rinse Water Pressure Check Final Rinse Water TemperatureExtended Wash Operation Complete the initial start-upDrain the dishwasher Initial START-UP Action Result Operation SummaryCleaning Every 2 Hours or After Each Meal PeriodEvery 8 Hours or at the End of the Day Deliming Condition Cause Solution TroubleshootingTroubleshooting Tools Basic ServiceTroubleshooting SchematicsMotor Overloads Electrical ServiceCycle Timer Electrical Service TimersConfiguration a Line Electrical Service Motor ConnectionsPump Seal Replacement Mechanical ServiceReplacement Parts MH-60/6N/6L Doors and Panels Part Item No Part Description Doors and PanelsMH-60/6N/6L Door Guides, Stops, and Lift Bracket Part Item No Part Description Qty Door GUIDES, STOPS, and Lift BracketMH-60/6N/6L Door Handle, Spring Assembly, and Safety Switch BUSHING, Side Door Door HANDLE, Spring ASSEMBLY, and Safety SwitchMH-60/6N/6L Track Assembly Corner configuration shown GUIDE, Left Hand Track AssemblyFront Side Left WASH/RINSE Spray Piping MH-60/6N/6L Wash/Rinse Spray Arms WASH/RINSE Spray Arms MH-60/6N/6L Drain Assembly and Scrap Screens RETAINER, Overflow Drain Assembly and Scrap ScreensMH-60/6N/6L Wash Tank Heat and Thermostats WASHER, Lock 1/4 Split SST Wash Tank Heat and ThermostatsValve Fill From Piping WASHER, Lock 1/4 Split MH-60 only Electric Booster and ThermostatsTo Upper MH-60 only Lower Fill Piping Assembly Replacement Parts Water in from Lower Piping MH-60/6N only Upper Fill Piping Assembly Customer Water MH-6N/6L only Lower Fill Piping Assembly MH-6L Only Upper Fill Piping Assembly MH-6L only Upper Fill Piping Assembly MH-60/6N/6L Pump Assembly Backing PLATE, Machined Pump AssemblyMH-60/6N/6L Control Panel and Gauges Control Panel and Gauges MH-60/6N/6L Control Cabinet Control Cabinet Dishracks and PRV Part Part Description Item No Dishracks and PRVThis Intentionally Left Blank Electrical Schematic / 3 Phase MH-60, 6N, 6L Electrical Schematic / 1 Phase MH-60, 6N, 6L