Moyer Diebel MH-60M5, MH-6NM5, MH-6LM5 technical manual Troubleshooting

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TROUBLESHOOTING

TROUBLESHOOTING (CONT.)

CONDITION

CAUSE

SOLUTION

Insufficient pumped

Clogged pump intake screen

Clean

spray pressure

Clogged spray pipe

Clean

 

Scrap screen full

Must be kept clean and in place

 

Low water level in tank

Check drain-overflow assembly

 

Pump motor rotation incorrect

Reverse connection between L1

 

 

and L2 in Control Cabinet

 

Defective pump seal

Contact Service Agent

 

 

 

Insufficient final rinse

Faulty pressure reducing valve

Clean or replace

or no final rinse

Improper setting on pressure

Set flow pressure at 20-22 PSI/

 

reducing valve

138-151.8 kPa

 

Clogged rinse nozzle and/or

Clean

 

pipe

 

 

Improper water line size

Have installer change to

 

 

proper size

 

Clogged strainer in fill valve

Clean or replace

 

 

 

Low final rinse

Low incoming water

Check the booster (MH60, MH6N)

temperature

temperature

be sure the thermostat is set to

 

 

maintain180°F/82°C temperature.

 

 

MH6L check incoming water is set

 

 

Min. 120°F/49°C-140°F/60°C.

 

 

Check valve to be sure it is clean

 

 

and operating

 

Defective thermometer

Check for proper setting or

 

 

replace

 

 

 

Poor washing results

Detergent dispenser

Contact detergent supplier

 

not operating properly

 

 

Insufficient detergents

Contact detergent supplier

 

Wash water temperature

See condition “Wash Tank

 

too low

Water Temperature” above

 

Wash arm clogged

Clean

 

Improperly scraped dishes

Check scraping procedures

 

Ware being improperly

Use proper racks. Do not

 

placed in rack

overload racks

 

Improperly cleaned

Unclog wash sprays and rinse

 

equipment

nozzles to maintain proper

 

 

pressure and flow conditions.

 

 

Overflows must be open. Keep

 

 

wash water as clean as possible.

 

Heater elements

Clean and delime

 

have soil/lime buildup

 

 

 

 

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Contents Technical Manual Moyer Diebel, US Moyer Diebel, Limited Comments Revision HistoryContents List of Figures Door Handle, Spring Assembly and Safety SwitchThis Intentionally Left Blank Limited Warranty This Intentionally Left Blank Introduction Model Numbers AccessoriesStandard Equipment includes Options MH-60 onlyModel Voltage Booster Rise Rated Changing Operation Straight-through to Corner InstallationUnpack the dishwasher Electrical Connections InstallationHinged Control Panel 20-22 PSI/138-151.8 kPa InstallationVentilation Water ConnectionsDrain Connections Chemical Connections Models MH-60 and MH-6N do not require sanitizer MH-60, 6N, 6LMH-6L Only Initial START-UP Complete the installationInstall the Scrap Screens Drain-Overflow Assembly Dishwasher Fills Automatically Check Wash Water TemperatureAutomatic dishwasher cycle Check Final Rinse Water Pressure Check Final Rinse Water TemperatureDrain the dishwasher Extended Wash OperationComplete the initial start-up Initial START-UP Action Result Operation SummaryCleaning Schedule CleaningEvery 2 Hours or After Each Meal Period Every 8 Hours or at the End of the DayDeliming Process DelimingCondition Cause Solution TroubleshootingTroubleshooting Troubleshooting Basic ServiceElectrical Service To adjust the overload setting To Reset the Motor OverloadMotor Overloads FusesIntroduction Troubleshooting Timer Circuit BoardFuse F1 Testing Board Outputs Operation Configuration a Electrical Service Motor Connections Pump Seal Replacement Mechanical ServiceReplacement Parts 413 Part Item No Part Description Doors and PanelsFront of Hood Part Item No Part Description Qty Door GUIDES, STOPS, and Lift BracketMH-60/6N/6L Door Handle, Spring Assembly, and Safety Switch Door HANDLE, Spring ASSEMBLY, and Safety Switch MH-60/6N/6L Straight Track Assembly Corner Track Assembly Straight Track AssemblyFront WASH/RINSE Spray Piping After S/N D3858 Prior to S/N D3857 WASH/RINSE Spray Arms MH-60/6N/6L Drain Assembly and Scrap Screens Drain Assembly and Scrap Screens MH-60/6N/6L Wash Tank Heat and Thermostats Wash Tank Heat and Thermostats Valve Fill From Piping MH-60 only Electric Booster and Thermostats To Upper MH-60 only Lower Fill Piping Assembly 1714 MH-60/6N only Upper Fill Piping Assembly To Upper MH-6N/6L only Lower Fill Piping Assembly 1814 MH-6L only Upper Fill Piping Assembly MH-60/6N/6L Pump Assembly Pump Assembly MH-60/6N/6L Control Panel and Gauges 112388 Control Panel and Gauges1516 Control Cabinet Dishracks and PRV Part Part Description Item No Dishracks and PRVThis Intentionally Left Blank Electrical Schematics 701602

MH-60M5, MH-6LM5, MH-6NM5 specifications

Moyer Diebel is well-known for its high-quality commercial dishwashing equipment, and its MH series, including the MH-6NM5, MH-6LM5, and MH-60M5 models, exemplifies this commitment to efficiency, performance, and durability. These machines are designed to meet the rigorous demands of high-volume foodservice operations, making them ideal for restaurants, hotels, and institutional kitchens.

The MH-6NM5 features a compact design that allows for flexibility in space-constrained environments. Despite its size, it boasts impressive cleaning capabilities, leveraging advanced wash technologies that ensure every dish emerges spotless. This model integrates features such as adjustable wash cycles and a powerful wash pump, which can handle even the most soiled items without compromising the integrity of delicate glassware.

Similarly, the MH-6LM5 model steps up the performance with additional features designed for more demanding applications. It incorporates a low temperature, chemical sanitizing option, providing an eco-friendly solution without sacrificing cleanliness. The machine's user-friendly control panel makes operation straightforward, allowing staff to easily select appropriate settings tailored to their washing needs. Furthermore, its stainless steel construction ensures durability and ease of cleaning, enhancing the longevity of the equipment in a busy kitchen.

The MH-60M5 stands out with its high-capacity output, capable of washing an exceptionally large number of racks per hour. This makes it particularly suitable for operations with peak service times and heavy dish loads. The enhanced energy-efficient design reduces water and electricity consumption significantly, aligning with modern sustainability goals while also lowering operational costs.

All models in the MH series feature innovative technologies such as self-diagnostics and maintenance alerts, which aid in minimizing downtime and ensuring optimal performance. Ergonomic design considerations are also evident, with user-friendly loading and unloading features that reduce physical strain on staff.

In summary, Moyer Diebel's MH-6NM5, MH-6LM5, and MH-60M5 models combine advanced cleaning technology, energy efficiency, and robust construction, making them vital assets for any commercial kitchen. With their ability to adapt to various washing requirements and environments, they represent the pinnacle of performance in the dishwashing category, helping operators maintain high standards of cleanliness and productivity.