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Installation/Operation Manual with Service Replacement Parts Undercounter Dishwashers M4 Series 401HT High Temperature Wash Refresh with built-in booster and Pumped Final Rinse 401HT Issue Date: 2.22.17 Manual P/N 115781 rev. A For machines beginning with S/N W150350341 and above 3765 Champion Blvd., 2674 N.
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For future reference, record your dishwasher information in the box below. Model Number__________________________ Serial Number_______________________ Voltage________________Hertz_____________ Phase__________________ Service Agent __________________________________ Tel:______________________ Parts Distributor _________________________________ Tel:______________________ National Service Department ATTENTION: In Canada: The model no., serial no., voltage, Hz Toll-free: (800) 263-5798 and phase are needed to identify your Tel: (905) 562-4195...
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PRODUCT REGISTRATION ONLINE Connect to the internet and enter the URL below to register your machine. IN CANADA: http://www.championindustries.com/canada/register...
PRODUCT REGISTRATION BY FAX COMPLETE THIS FORM AND FAX TO: (336) 661-1660 in the USA 1 (800) 204-0109 in Canada PRODUCT REGISTRATION CARD Model Serial # Date of Installation: Company Name: Address: (Street) State Zip or Telephone #: ( or Province Postal Code Contact: Installation Company:...
Revision History Revision History A revision might be a part number change, a new instruction, or other information that was not available at print time. We reserve the right to make changes to these instructions without notice and without incurring any liability by making the changes. Equipment owners may request a revised manual, at no charge, by calling 1 (800) 858-4477 in the USA or by calling 1 (800) 263-5798 in Canada.
The Company's obligation with respect to labor associated with any repairs shall end (a) 120 days after shipment, or (b) 90 days after installation, whichever occurs first. In the event that Moyer Diebel elects to repair, the labor and work to be performed in connection with the warranty shall be done during regular working hours by The Company's authorized service technician.
Table of Contents Table of Contents Model 401HT Revision History ......................i Limited Warranty ...................... ii ..................Installation Receiving ......................1 Placement ......................1 Water Connections ....................2 Drain Connections ....................3 Electrical Connections 401HT 1 and 3 PH Wiring Diagrams ........6 Connecting Incoming Power to the Main Terminal Block (1 and 3 PH) ......
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Receiving and Placement - Installation Receiving - 401HT NOTE: The installation of your dishwasher must be performed by qualified service personnel familiar with food service equipment and must comply with all local health codes. Problems due to improper installation are not covered by the Limited Warranty. NOTE: The installation of the dishwasher must comply with all local electrical, plumbing, health and safety codes or in the absence of local codes, installed in accordance with the applicable...
Installation - 401HT Water Connections VERY IMPORTANT: Make sure the flexible water supply and drain hoses are not kinked. Plumbing connections must allow the machine to be pulled out for service and cleaning. Plumbing connections must comply with national, provincial local plumbing and sanitary codes.
401HT - Installation Drain Connections ! VERY IMPORTANT ! Do not connect the drain hose to a disposer. The dishwasher will not drain correctly. Refer to the photo below. All models are equipped with a 6 ft.. 5/8" I.D. drain hose. The maximum drain height connection must not exceed 3 ft.[1 m] and must be vented to prevent the wash tank from siphoning.
Installation - 401HT Drain Connection (continued) DO NOT REMOVE THE CLAMPS HOLDING THE DRAIN HOSE TO THE BACK OF THE DISHWASHER. DO NOT CONNECT THE DRAIN HOSE TO A DISPOSER. DO NOT REDUCE THE SIZE OF THE DRAIN HOSE CONNECTION NOR USE A DOMESTIC DRAIN FITTING.
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401HT - Installation Drain Connection For an Indirect Drain Connection: A 1" [25.4mm] minimum air gap must be provided between the outlet of the dishwasher drain hose and the flood-level rim of the floor drain, floor sink or any other locally approved drain receptacle.
Installation - 401HT Electrical Connections - 401HT with Built-in Booster 1PH and 3PH Wiring Diagrams WARNING: Electrocution or serious injury may result when working on an energized circuit. Disconnect power at the main breaker or service disconnect switch before working on the circuit. Lock-out and tag the breaker or service disconnect switch to indicate that work is being performed on the circuit.
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401HT - Installation Electrical Connections - 401HT with Built-in Booster 1PH and 3PH Wiring Diagrams ! ATTENTION ! The installation of the dishwasher must comply with all local electrical, plumbing, health, and safety codes or in the absence of local codes, installed in accordance with the applicable requirements in the National Electrical Code, NFPA 70, Canadian Electrical Code (CEC), Part 1, CSA C22.1;...
Installation - 401HT Connecting Incoming Power to the Main Terminal Block for 1PH and 3PH Machines with Boosters WARNING: Electrocution or serious injury may result when working on an energized circuit. Disconnect power at the main breaker or service disconnect switch before working on the circuit.
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401HT - Installation Connecting Incoming Power to the Main Terminal Block for 1PH and 3PH Machines with Boosters Refer to the photo below: Remove the lower front dishwasher panel. Remove the retaining fasteners (A) from the swing-out brackets and swing the chemical pump bracket (B) and the chemical circuit board bracket (C) out of the way as shown.
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Installation - 401HT Connecting Incoming Power to the Main Terminal Block for 1PH and 3PH Machines with Boosters (continued from previous page) Refer to the photo below: Provide a 3 foot/1 meter service loop in the power supply cable to service the machine Route the power cable from the rear of the machine to the terminal block making sure the cable does not touch the booster tank.
401HT - Installation Booster Heater Conversion from 1PH to 3 PH Operation ! VERY IMPORTANT ! THE BOOSTER HEATER IS WIRED FOR 1PH OPERATION WHEN SHIPPED. FOLLOW THE INSTRUCTIONS BELOW TO WIRE THE BOOSTER FOR 3PH. WARNING: Electrocution or serious injury may result when working on an energized circuit.
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Installation - 401HT Booster Heater Conversion from 1PH to 3 PH Operation (continued) ! VERY IMPORTANT ! THE BOOSTER HEATER IS WIRED FOR 1PH OPERATION WHEN SHIPPED. FOLLOW THE INSTRUCTIONS BELOW TO WIRE THE BOOSTER FOR 3PH. Disconnect the existing booster heater wires and change the booster heater element jumpers as shown in the illustration below Connect wires 1H1, 1H2, and 1H3 as shown below.
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401HT - Installation Completing the 1PH to 3PH Electrical Conversion ! ATTENTION ! CHANGE THE DATA PLATE ON THE LOWER FRONT PANEL OF THE MACHINE AFTER THE MACHINE IS WIRED FOR 3PH AND THE BOOSTER HEATER IS CONNECTED FOR 3PH. The data plate on the dishwasher lower front panel must be changed after the machine is converted from single phase operation to three phase operation.
Installation - 401HT Booster Fill Switch (Filling the booster tank for the first time) ! CAUTION ! AVOID PERMANENT DAMAGE TO THE BOOSTER HEATER DO NOT TURN THE DISHWASHER POWER SWITCH ON WHEN FILLING THE BOOSTER FOR THE FIRST TIME. THE BUILT-IN BOOSTER TANK WAS DRAINED BEFORE SHIPMENT AND MUST BE REFILLED BEFORE OPERATING THE DISHWASHER.
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401HT - Installation Booster Fill Switch (Filling the booster tank for the first time) PUSH AND HOLD the booster fill switch in the FILL position until water starts filling inside the wash compartment. Release the FILL switch. PUSH the booster fill switch to the ON position and release. The booster fill operation is complete.
Installation - 401HT Chemical Connections ! VERY IMPORTANT ! ALWAYS USE A COMMERCIAL-GRADE NON-CHLORINATED DETERGENT. PLACE THE CHEMICAL SUPPLY CONTAINERS AS CLOSE TO THE MACHINE AS POSSIBLE. DO NOT ELEVATE THE CHEMICAL CONTAINERS ABOVE THE FINISHED FLOOR. ! VERY IMPORTANT ! Contact a chemical supplier for detergent and rinse-aid chemicals.
401HT - Installation Detergent and Rinse-aid Pumps and Injection Points ! VERY IMPORTANT ! ALWAYS USE A COMMERCIAL-GRADE NON-CHLORINATED DETERGENT. PLACE THE CHEMICAL SUPPLY CONTAINERS AS CLOSE TO THE MACHINE AS POSSIBLE. DO NOT ELEVATE THE CHEMICAL CONTAINERS ABOVE THE FINISHED FLOOR. Injection Point Locations 1.
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401HT - Installation Detergent and Rinse-aid Pumps and Injection Points Priming the Dispensing Pumps ! VERY IMPORTANT ! The chemical dispensing pumps must be primed before operating the dishwasher and whenever the chemical container is changed. 401HT Control Panel The chemical dispensing pump supply lines must be primed before they will pump the chemicals properly.
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Installation - 401HT Detergent and Rinse-aid Pumps and Injection Points ! ATTENTION ! The amount of dispensed chemical is determined by the run time of the dispensing pump. Refer to the photo below: 1. The chemical dispensing pump run and the tank fill adjustment screws are located on the end of the chemical circuit board swing-out bracket.
401HT - Installation Detergent and Rinse-aid Pumps and Injection Points Refer to the photo below: To adjust the amount of chemicals dispensed by the pumps: Make sure the chemical containers are full and the pick-up tubes are in their proper containers. Turn the dishwasher power switch ON.
Operation - 401HT Operation Loading Dish Racks ! VERY IMPORTANT ! DO NOT OVERLOAD THE DISH RACK. LOAD ONE DISH RACK INTO THE MACHINE AT A TIME. Prescrap and rinse the wares before loading to remove large food particles. Load soiled wares into the dish rack. Place plates and glasses in a peg rack. Place cups and bowls in a flat bottom rack.
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401HT - Operation Loading Dish Racks (continued) Load pots and pans in a flat-bottom rack. Load utensils in a single layer in a flat-bottom rack. Load cups and bowls in a flat-bottom rack. NEVER stack dish racks. Wash one dish rack at a time.
Operation - 401HT Operation Normal Wash Mode 401HT Control Panel In-cycle Light Start ON-OFF/DRAIN Prime Wash Temperature Final Rinse Temperature Push button Power Switch Push button Digital Display Digital Display Close the dishwasher front door. Push the dishwasher Power Switch UP to turn the power ON. The power switch will illuminate and the machine will fill with water.
401HT - Operation Rinse Sentry Mode ! ATTENTION ! DOOR LEFT OPEN DURING WASH CYCLE If the dishwasher door is left open for more than 5 seconds during the normal wash mode, then the dishwasher cycle will reset to the beginning of the normal wash cycle. ! ATTENTION ! RINSE SENTRY MODE WILL EXTEND WASH CYCLE TIME In the event that the final rinse temperature has not reached 180-195ºF/82-91ºC after the...
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Operation - 401HT Operation Drain Mode (continued) Push the illuminated power switch down to the OFF(DRAIN) position. The power switch light will go out. The cycle light will illuminate and the machine will drain. The machine, will flush, perform 3 short drain cycles and then drain completely. The cycle light will go out indicating that the drain cycle is complete.
401HT - Cleaning Cleaning VERY IMPORTANT DRAIN AND CLEAN THE DISHWASHER EVERY 2 HOURS OF CONTINUOUS OPERATION, AFTER EACH MEAL PERIOD, AND AT THE END OF THE DAY. Cleaning the wash tank: Remove the upper and lower spray arms and flush clean in a sink. Remove the scrap screen taking care that debris does not fall off the screen and into the wash tank or sump.
Cleaning - 401HT Cleaning Cleaning the wash arms: Unscrew the retaining screw from the upper and lower interchangeable spray arms. Flush the spray arms clean in a sink. Be sure to flush the wash arm bearings. Retaining Screw Wash Arm Bearing 401HT...
401HT - Cleaning Cleaning Scrap Screen and Sump Strainer Scrap Screen Lift the scrap screen straight up and out of the machine to prevent food particles from falling into the tank sump. Flush the scrap screen in a remote sink making sure to back-flush both side of the screen.
De-liming - 401HT Deliming DANGER: Death or serious injury may result when deliming solution is mixed with sodium hypochlorite sanitizing agent. Mixing may cause hazardous gases to form. Deliming solution and other acids must never be mixed with chlorine, iodine, bromine, or fluorine. CAUTION: Skin contact with deliming solutions can cause severe irritation and possible chemical burns.
Maintenance - 401HT Maintenance Follow the maintenance schedules below to keep the dishwasher operating most efficiently. Daily Maintenance Make sure the water supply is on and that the drain is not clogged. Check the temperature gauges and/or displays to ensure they are operating. Make sure the dish racks are in good condition.
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Troubleshooting 401HT Illustrations Page Troubleshooting Chart ................... 34 Wash Display Codes Temperature Display Board ............35 Rinse Display Codes Temperature Display Board ............36 Booster Display Codes Temperature Display Board ........... 37 Timer Board Connection Diagram ................38 Timer Board Diagnostic Testing ................39 Temperature Display Board Power Terminal Connections ...........
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Troubleshooting - 401HT Condition Cause Solution Dishwasher will not run. Door not closed. Close door completely. Main power OFF. Check breaker on panel. Dishwasher OFF. Turn dishwasher power switch ON. Low or no water. Main water supply off. Open supply valve. Fill hose kinked.
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401HT - Digital Temperature Display Codes Digital Temperature Display Codes Display codes that appear in the display windows indicate the operating condition of the machine. Refer to the illustrations below for the meaning of the codes. Wash Display Codes CAUSE WASH DISPLAY CODE Wash temperature 1 8 8...
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Digital Temperature Display Codes - 401HT Rinse Display Codes CAUSE RINSE DISPLAY CODE Rinse temperature 1 5 9 is below 100˚F RINSE TEMP WASH TEMP 1 5 6 Rinse temperature is above 200˚F WASH TEMP RINSE TEMP Booster tank is empty 1 4 9 &...
401HT - Digital Temperature Display Codes Booster Display Codes Error Codes for Booster and Final Rinse Thermistors Only. CAUSE DISPLAY CODES 1 5 0 Booster overtemp lockout because booster temperature is greater than 210˚F. RINSE TEMP WASH TEMP NOTE: Booster is locked out for 10 minutes before being re-energized.
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401HT - Timer Board Diagnostic Testing Diagnostic Testing for the Solid State Timer Board, P/N 0712105 Beginning with S/N W150350341 and above Before testing, Press the dishwasher power switch to OFF/DRAIN and allow the machine to complete the drain cycle. Check the incoming voltages.
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Digital Temperature Display Board - 401HT Power Neutral...
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401HT - Digital Temperature Display Board...
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Digital Temperature Display Board - 401HT...
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401HT - Booster Heater/Wash Tank Heater Interlock Circuit Operation Booster Heater/Wash Tank Heater Interlock Circuit Operation For Model 401HT, the booster heater/wash tank heater interlock circuit removes power from the wash tank heater whenever the booster heater contactor energizes. The illustration below shows how the booster heater contactor is wired. The booster heater contactor is located on the center of the base behind the lower front access panel.
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Service Replacement Parts Service Replacement Parts Illustrations Page Wash Pump/Motor Assembly ...................46 Base Assembly ........................48 Fill Piping Assembly ......................52 Fill Solenoid Valve ......................54 Fill Chute Assembly ......................56 Chemical Dispensing Pumps .....................58 Booster Assembly ......................60 Power Input Block and Cord Assemblies ................62 Timer Control Board Assembly ..................64 Wash/Rinse Spray Arm and Drain Valve ................66 Control Panel ........................68...
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401HT - Fill Chute Assembly Item Part Description Qty. 107417 HOSE, RUBBER 1/2" ID X .84" OD 0502666 HOSE, 1/8" ID X 1/4" OD PVC 0502667 HOSE, 1/4" ID X 3/8" OD PVC 100194 NUT, GRIP 10-32 W/NYLON INSERT 0503722 NUT, HEX 10-32 SST 0507709 WASHER, FLAT #10 SST...
Chemical Dispensing Pumps - 401HT IMPORTANT: Check Items 9 and 20 every 6 months and replace if stretched or worn. RINSE-AID DETERGENT...
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401HT - Chemical Dispensing Pumps Item Part Description Qty. 0501869 STRAINER 0306363 TUBE, 3/8" ID X 12" LG. STIFFENER 0505483 LABEL, RINSE-AID HOSE 112883-1 TUBING, 1/8" OD X 1/16" ID 0503695 LABEL, DETERGENT HOSE 0502667 HOSE, 1/4" ID X 3/8" OD PVC 0501519 TIE, NYLON 4"...
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401HT - Door Assembly Item Part Description Qty. 0713136 DOOR ASSEMBLY 0513794 GASKET, DOOR TOP 0513793 GASKET, DOOR SIDE 0713428 HINGE, RH ASSY 0310183 WASHER, 9/32" X 5/8" OD SS 0501422 BOLT, HEX SS 1/4-20 X 1-1/2" 0513332 SPRING, DOOR 0713429 HINGE, LH ASSY 0313430...
Electrical Schematics Electrical Schematics and Timing Charts Illustrations Page Electrical Schematic - High Temperature Model ..............78 Timing Chart ........................79...
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