SECTION PAGE WARRANTY POLICY INSIDE FRONT COVER TABLE OF CONTENTS GENERAL Machine Nomenclature Important Safety Instructions Nationwide Maintenance and Repair Centers PARTS IDENTIFICATION AND FUNCTION Diagram of Assembled Machine INSTALLATION REQUIREMENTS Electrical Requirements Drain Hose Connection Hot Water Supply Connection Dishwasher Electrical Data Decal Chemical Dispensing Equipment DISHWASHER OPERATING INSTRUCTIONS...
Hot-water sanitizing Models JP-24/F and JP-24B/BF must have a minimum 180 Degree F. rinse water temperature at a flow pressure of 20 PSI (+/-) 5 PSI to assure proper sanitization of ware. The JP-24 series dishwasher is not supplied with chemical dispenser pumps for dispensing detergent, rinse additive or sanitizer (JP-24LT/F).
PARTS IDENTIFICATION AND FUNCTION ITEM DESCRIPTION FUNCTION Top Enclosure Panel Encloses Top - Freestanding Units Right Side Panel Encloses Right Side of Machine Door Switch (Not Shown) Starts Dishwashing Cycle Door Frame Panel Access Panel to Door Switch/Spring Electrical Data Decal Dishwasher Electrical Requirements/Serial No.
INSTALLATION REQUIREMENTS MODEL JP.24B/BF-ELECTRICAL REQUIREMENTS - SEE FIGURE - 1 IMPORTANT - PLEASE READ CAREFULLY - THE RINSE HEATER RELAY HAS BEEN TEMPORARILY DISABLED SO THAT THE MACHINE'S INTERNAL BOOSTER TANK CAN FILL WITH WATER BEFORE TURNING ON THE HEATING ELEMENT. A QUALIFIED SERVICEMAN MUST RECONNECT THE WIRE (ORANGE/WHITE) TO THE RINSE HEATER RELAY COIL (TAGGED) AFTER THREE CYCLES OF OPERATION AND THE WASH TANK IS FULL OF WATER.
INSTALLATION REQUIREMENTS continued HOT WATER SUPPLY CONNECTION Install the water supply line (1/2" pipe size minimum) to the dishwasher line strainer using a soft copper tube, flexible tube or hose to allow machine to be moved for servicing. DISHWASHER ELECTRICAL DATA DECAL DISHWASHER ELECTRICAL DATA DECAL is located on the right-side of unit at front.
DISHWASHER OPERATING INSTRUCTIONS DISHWASHING CYCLE: Once the machine is initially filled, the dishwashing cycle consists of: the machine washes a rack of dishes, drains the wash water, and then rinses with fresh water which remains in the machine to wash the next rack of dishes. During the rinse, detergent, rinse additive, and sanitizer (JP-24LT/LTF) should be injected.
TROUBLESHOOTING GUIDE The following Troubleshooting Guide contains a list of possible problems/faults/symptoms which can be used as a quick-reference to solving problems. Refer to appropriate section identify the equipment malfunction. WARNING: INSPECTION, TESTING AND REPAIR OR ELECTRICAL EQUIPMENT SHOULD BE PERFORMED ONLY BY QUALIFIED SERVICE PERSONNEL.
Page 12
TROUBLESHOOTING GUIDE continued ITEM PROBLEM 1. NOTHING ON MACHINE OPERATES "POWER SWITCH ON - POWER LIGHT OFF" 1. Dishwasher circuit breaker turned off. 2. Defective circuit breaker - have electrician test. 3. Circuit breaker tripped - overload in circuit. a. Have electrician check amperage on circuit.
Page 13
TROUBLESHOOTING GUIDE continued ITEM PROBLEM 7. WASH TEMPERATURE LOWER THAN REQUIRED 150 DEG. F. 1. Faulty temperature gauge. 2. Rinse temperature below 180 cleg. F. minimum. See RINSE TEMPERATURE LOWER THAN REQUIRED 180 DEG. F. 8. RINSE TEMPERATURE LOWER THAN REQUIRED 180 DEG. F. 1.
Page 14
TROUBLESHOOTING GUIDE continued ITEM PROBLEM 14. DISHES ARE NOT COMING CLEAN 1. Check water flow pressure to dishwasher. 2. Wash/rinse arms not rotating properly/clogged. 3 No detergent or improper concentration. 4. Dishwashing cycle times, wash, drain and rinse not correct. 5.
Page 15
TROUBLESHOOTING GUIDE continued ITEM PROBLEM 20. VERY HIGH WASH OR RINSE TEMPERATURE 1. Faulty thermostat. 2. Rinse heater relay contacts sticking. 21. VACUUM BREAKER LEAKS 1. Very low water supply pressure. 2. Rinse arms clogged. 3. Vacuum breaker internal parts defective. 22.
SERVICE PROCEDURES WARNING: INSPECTION, TESTING AND REPAIR OF ELECTRICAL EQUIPMENT SHOULD BE PERFORMED ONLY BY QUALIFIED SERVICE PERSONNEL. CERTAIN PROCEDURES IN THIS MANUAL REQUIRE ELECTRICAL TESTS OR MEASUREMENTS WHILE POWER IS APPLIED TO THE DISHWASHER. EXERCISE EXTREME CAUTION AT ALL TIMES. IF TEST POINTS ARE NOT EASILY ACCESSIBLE, DISCONNECT POWER AND ATTACH TEST EQUIPMENT AND REAPPLY POWER TO TEST.
Page 17
SERVICE PROCEDURES continued 1. To replace Drain Valve, Valve Seal, Hoses. The motor operated drain valve is electrically operated by the timer during the drain cycle. It is also activated when the machine is placed in the off-drain position. The motor operated drain valve diverts the main pump water flow through valve and out drain hose to kitchen's waste system.
Page 18
SERVICE PROCEDURES continued C. To replace drain valve. (6) Disconnect the lead wires and ground to drain valve. Remove discharge hose from valve. (7) Remove drain valve from mounting place. (8) Reverse procedures to install new valve. INSURE GROUND WIRE LEAD IS CONNECTED PROPERLY TO TERMINAL ON MOTOR.
SERVICE PROCEDURES continued To replace rinse/fill solenoid valve coil or internal parts. The rinse/fill solenoid valve is electrically operated by the cam timer at the initial fill (at start of day/meal) and then during the rinse cycle. Most problems are coil failures or water deposit buildup on diaphragm. See illustrated parts list for repair parts.
Page 20
SERVICE PROCEDURES continued 3. To replace the pump motor assembly, pump seal, capacitor or impeller Capacitor Start, Built-in Overload Protection. Marathon Jet Pump Assembly, 3450 RPM, 3/4 HP, 60 HZ, 1 PH, 115V/230V, FLA 8.8/4.4 AMPS, SPA 10.6/5.3 AMPS, ROTATION - CLOCKWISE. Mechanical Shaft Seal - Standard Self-adjusting Shaft Seal (EPT Mechanical Seal) White Ceramic Seat and Carbon Seal Face.
Page 21
SERVICE PROCEDURES continued Steps: DISCONNECT THE ELECTRICAL POWER TO THE DISHWASHER AT THE MAIN CIRCUIT BREAKER BOX WHEN SERVICING. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING REPAIRED. Disconnect power and conduit from dishwasher terminal block. Turn off the water supply and disconnect the water supply line.
Page 22
SERVICE PROCEDURES continued The ceramic is embedded in the impeller and normally does not need replacement, but it should be checked for cracks or a worn surface. If ceramic does need ..replacement, proceed as follows. With a pointed, flat tool, work the ceramic and rubber cup out of groove in impeller. Clean groove of all residue.
Page 23
SERVICE PROCEDURES continued A. To adjust the timer cams On both sides of the adjustable cams, there are holes into which the spanner wrench is placed to apply leverage to make the desired change. The left side of the cam will always start an operation and the right side will end it.
Page 24
SERVICE PROCEDURES continued Function of each of the cam micro-switches starting from the timer motor. CAM NO 1 - C-1 Cycle cam/Reset cam which is not adjustable, controls the total length of the cycle. It is activated by the door switch when the door of the dishwasher is opened and closed. CAM NO 2 - C-2 Cam not adjustable.
Page 25
SERVICE PROCEDURES continued 5. To replace door switch or adjust/check. The door switch is mounted on the right-front side of dishwasher. When the door is closed, a pin from the door strikes the door switch arm and a dishwashing cycle is started. It is necessary to open and close the door to begin another cycle.
Page 26
SERVICE PROCEDURES continued B. To adjust Door Switch. (1) Follow step "A-1" above. (2) Loosen door switch mounting bracket which is secured by (2) locknuts. (3) Close door to dishwasher and latch completely. (4) Move door switch lever against striker until switch "clicks" or closes circuit. Tighten locknuts securing switch bracket.
SERVICE PROCEDURES continued 7. To replace or check Cycle Switch, 15A, DPST, 3-Position, Manual/Standby/Automatic. Manual position will run pump motor constantly for washing hard to clean items or for deliming machine. Place cycle switch into manual position only after machine has filled. Standby or center position of cycle switch will allow the door to be opened and closed without starting a dishwashing cycle.
Page 28
SERVICE PROCEDURES continued connect terminals and is mounted by 7/16-24 thread, loxit fitting for easy removability and serviceability. Thermostat range is 140DegF-240Deg. F with a maximum bulb exposure temperature of 300 Deg. F. Unit is listed at 12.5 Amps @ 120VAC. Thermostat set point - 195 Deg. F., adjustable range. Thermostat regulates and maintains water temperature in booster tank to thermostat set point.
SERVICE PROCEDURES continued A. To make adjustment to thermostat set-point. WARNING: DISCONNECT THE ELECTRICAL POWER TO THE DISHWASHER AT THE MAIN CIRCUIT BREAKER. TAG CIRCUIT BREAKER TO INDICATE THE CIRCUIT IS BEING REPAIRED. (1) The thermostat can be adjusted by turning the set-point adjusting screw on the thermostat. A counter clockwise (CCW) rotation is used to obtain a lower temperature setting and a clockwise (CW) rotation is used to obtain a higher temperature setting.
SERVICE PROCEDURES continued A. To remove and replace booster tank. (1) Drain wash tank by using Off/Drain function. (2) Disconnect power to machine. (3) Disconnect water supply line to machine. (4) Drain booster tank by removing plug from bottom of tank. See Procedure (8) Step (B-5). WARNING: Booster tank is full of approximately (3) gallons of very hot water.
Page 32
SERVICE PROCEDURES continued Most problems are buildup of water deposits on bonnet. Install repair kit - DO NOT REPLACE ENTIRE VACUUM BREAKER. (1) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE DISHWASHER AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING WORKED ON. (2) Turn water supply off to dishwasher.
Page 33
SERVICE PROCEDURES continued To replace Wash Thermometer (1) Remove ware from dishwasher. (2) Start a dishwashing cycle, place POWER SWITCH to OFF/DRAIN position, dishwasher will run cycle and drain. (3) Remove lower enclosure kick panel. (4) Lower the control (gauge) panel. (5) Remove the wash thermometer mounting bracket, (6) Remove thermometer bulb fitting located at left side of control panel in lower wash sump.
SERVICE PROCEDURES continued B. To replace Rinse Thermometer To remove and replace rinse thermometer it is necessary to pull the dishwasher from the wall to gain access to rear of machine. Rinse thermometer bulb fitting is screwed into the final rinse injection manifold at rear of machine.
SERVICE PROCEDURES continued 15. To adjust Rack Slides or replace broken mounting stud. The rack slides are located inside the dishwasher on each left and right side walls. They hold the dishrack in the proper position for washing and rinsing. The dishrack must slide smoothly from the door area onto the rack slides.
SERVICE PROCEDURES continued 17. To check Water Supply Temperature. (1) Install a temperature gauge (1/4") into the petcock valve using teflon tape on the threads. (2) Turn petcock valve to open position. (3) Run a dishwashing cycle. During Rinse portion of cycle when green light comes read temperature of gauge, it must be at least 140 degree F.
SERVICE PROCEDURES continued (1) WARNING: DISCONNECT THE ELECTRICAL POWER TO THE DISHWASHER AT THE MAIN CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT BOX INDICATING THE CIRCUIT IS BEING WORKED ON. (2) Remove front door flange which is secured by 4 screws. (3) Close and latch door completely.
ILLUSTRATED PARTS LIST The following assemblies are illustrated in this order: Section Page TUB AND FRAME ASSEMBLY Kick Plate, Top, Side, Panel and Machine Assembly Shroud and Machine Assembly Tub and Frame Assembly Weldment, Left Frame Weldment, Right Frame DOOR, HINGE, STOP AND LATCH ASSEMBLY Door, Hinge, Stop and Latch Assembly Latch Assembly Door Assembly...
KICK PLATE, TOP, SIDE PANEL & MACHINE ASSEMBLY MODEL JP-24BF Part No. Req'd Description Mfr's No. 0413837 Side Panel, Left 6401-041-38-37 1730400 Screw S/S Phil Truss HD #10-32 x 1/2 5305-173-04-00 0113944 Front Kick Panel - Complete Assembly 5700-011-39-44 1730400 Screw S/S Phil Truss HD #10-32 x 1/2 5305-173-04-00 0413808...
DOOR FRAME ASSEMBLY Part No. Req'd Description Mfr's No. 0313815 Front Frame Weldment Assembly 5700-031-38-15 1730400 #10-32 x 1/2 LG Truss Slot Screw S/S 5305-173-04-00...
TUB AND FRAME ASSEMBLY Part No. Req'd Description Mfr's No. 0413547 Tub and Hood Weldment Assembly 5700-041-35-47 0113557 Right Frame Assembly 5700-011-35-57 0113558 Left Frame Assembly 5700-011-35-58 5/16-18 Serrated Keps Nut...
DOOR, HINGE, STOP AND LATCH ASSEMBLY Part No. Req'd Description Mfr's No. 0113915 DOOR ASSEMBLY 5700-011-39-15 0213767 STOP, LEFT HINGE 5700-021-37-67 3740100 FASTENER, NUT 1/4-20 S/S HEX 5310-374-01-00 0214421 COVER. LEFT HINGE 5700-021-44-21 0314097 STRAINER GUIDES & ARMS TO 5700-031-40-97 MACHINE 0214420 COVER, RIGHT HINGE...
DOOR ASSEMBLY 5700-011-39-15 Part No. Req'd Description Mfr's No. 0116025 DOOR HANDLE 6401-011-60-25 0313289 SEAL CHANNEL, INNER DOOR LEFT 5700-031-32-89 0213572 WELDMENT, OUTER DOOR 5700-021-35-72 0213875 WELDMENT, HINGE ASSEMBLY, RIGHT 5700-021-38-75 0313756 SPRAY BAFFLE 5700-031-37-56 0213876 WELDMENT, HINGE ASSEMBLY LEFT 5700-021-38-76 0114423 SPACER, HINGE UHMW...
* Nickel Plated Impeller After S/N 2688 PUMP AND MOTOR ASSEMBLY Part No. Req'd Description Mfr'sNo. 0214402 IMPELLER 4320-021-44-02 0114408 GASKET 5330-111.-59-90 0114406 MECHANICAL SEAL 5330-011-44-06 SHIM PACK 0214403 MOTOR ONLY 6105-021-44-03 0214407 PUMP ONLY 5930-021-44-07 1315093 PUMP & MOTOR ASSEMBLY, COMPLETE 6105-131-50-93 0114446 PET COCK...
Need help?
Do you have a question about the JP-24F and is the answer not in the manual?
Questions and answers