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ACP MXP5201, Service Training Manual

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53

Inoperative Display Board
Inoperative Touch Screen

Yes

             PRESS TO PREHEAT

Push Knob In

or

Touch

On Touch Screen

No

Yes

OVEN REACHES 

TEMPERATURE

No

1.  Inoperative Thermocouple 
2.  Inoperative Radiant Heater
3.  Inoperative Convection Heater
4.  Inoperative Temp Sensor (RTD Radiant)
5.  Inoperative Main Board
6.  Broken or Loose Wire

OVEN

PREHEATING

PREHEAT TEMP = 520 F

PROGRAM

CHANGE

TEMP

MENU

BACK

MANUAL

COOK

1

2

3

4

5

6

READY

PREHEAT TEMP = 520 F

PROGRAM

MANUAL

COOK

MENU

CHANGE

TEMP

PREHEAT CONDITION

Indicates Rising Temperature

OVEN

PREHEATING

PREHEAT TEMP = 520 F

PROGRAM

CHANGE

TEMP

MENU

BACK

MANUAL

COOK

1

2

3

4

5

6

READY

PREHEAT TEMP = 520 F

PROGRAM

MANUAL

COOK

MENU

CHANGE

TEMP

(NORMAL DISPLAY)

(NORMAL DISPLAY)

(NORMAL DISPLAY)

Indicates  Temperature Reached

See component test procedures section
for testing procedures and results.

See component test procedures section
for testing procedures and results.

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Summary of Contents for MXP5201

Page 1: ...Service Training Manual High Speed Combination Oven MXP 50 Hz December 2011 16400017 ...

Page 2: ...placeable Waveguide 32 Interlock Switch Service 33 34 Oven Performance Test AXP5201 AXP5203 MXP5201 MXP5203 011234 0115 5065 44 Component Testing Procedures AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 39 41 Service Test AXP5201 AXP5203 MXP5201 MXP5203 42 50 Troubleshooting AXP5201 AXP5203 MXP5201 MXP5203 51 56 7 8 947 4 01 24 4 01 54 4 01 24 4 01 5 0 60 Service Test MXP5221 MXP5223 59 66 Troub...

Page 3: ...1 Important Safety Information 1 ...

Page 4: ...n ITISTHETECHNICIANSRESPONSIBLITYTOREVIEWALL APPROPRIATESERVICEINFORMATIONBEFOREBEGINNINGREPAIRS WARNING Toavoidriskofseverepersonalinjuryordeath disconnectpowerbeforeworking servicingonappliancetoavoid electrical shock Tolocateanauthorizedservicerpleasecontact ComServ Support Center Web Site Telephone Number WWW ACPSOLUTIONS COM E Mail commercialservice acpsolutions com 1 866 426 2621 or 319 368 ...

Page 5: ...icer is to cease repair and contacttheACPComServ Department immediatelyforfurtherdirection ACP willcontacttheproperGovernment Agency upon verification of the test results 1 Always operate the unit from an adequately grounded outlet Do not operate on a two wire extension cord 2 Beforeservicingtheunit ifunitisoperable perform themicrowaveleakagetest 3 Theovenshouldneverbeoperatedifthedoordoes not fi...

Page 6: ...this equipment ONLY for its intended use as described in this manual Do not use corrosive chemicals or vapors in this equipment This type P4 A 4 4 8894C C4 4 34 Q34 or dry food It is not designed for industrial or laboratory use 7 As with any equipment CLOSE SUPERVISION is necessary when used by CHILDREN 4 4C F4 8 4 FB 4 4 4 6R4 P4 this owners manual 9 DO NOT heat baby bottles in oven 10 Baby food...

Page 7: ...to the container 1 Do not deep fat fry in oven Fat could overheat and be hazardous to handle 2 Do not cook or reheat eggs in shell or with an unbroken yolk using microwave energy Pressure may build up and erupt Pierce yolk with fork or knife before cooking 3 Pierce skin of potatoes tomatoes and similar foods before cooking with microwave energy When skin is pierced steam escapes evenly 4 Do not op...

Page 8: ...6 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Specifications Installation Unpacking the oven Oven Clearances Power Specification Input Output Consumption Dimensions Weight 2 ...

Page 9: ...ct oven for damage such as dents in door or inside oven cavity X4 I F 4 94C 4 F4DF Q 4 4 BF 4 P4 BF 4 TT C 89 4 0 1 23 45 1216 X4 I T A 4 884 Q 4T F 8 4PF T4 A 4 F F X4 YP4 A 4 4D 4 F C4 4 G F T 894 8C4 F 34U 4 4P U4 BF 4D P F connecting power Oven Clearances A For North American UL CSA models allow at least 2 5 1 cm of clearance around top of oven For International 50 Hz models allow 48 4 4 2 4 T...

Page 10: ...atts Convection heater 2000 Watts Combination 5300Watts Dimensions Cabinet in cm 63 5 cm Width Height 65 cm Depth includes bracket on back Oven Interior in cm useable space Width 41 cm Height 20 cm Depth 38 cm Weight lbs kg Uncrated 68 kg Crated 79 kg 0 12 C IEC 309 400 VAC 16 A 50 Hz Wye IEC 309 IEC 309 3 phase 5 wire 2200 Watts 12 C 2450 MHz 5700 Watts 4200 Watts 425 Watts 3000 Watts 2000 Watts ...

Page 11: ...9 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Quick Start Reference Guide 3 ...

Page 12: ... B 1 Rotate the dial clockwise to scroll through menu options 2 The current menu selection will be highlighted 3 To select menu item press dial The icons below will be used throughout this guide to indicate when menu navigation other than the dial is necessary TOUCH SCREEN KEYPAD Getting Started Using MANUAL COOK 0 1 0 2 power level 1 After oven has preheated Select MANUAL COOK option on the menu ...

Page 13: ...is necessary press CLEAR to erase one character at a time 4 Highlight SAVE button and press dial to select when item is complete If you do not wish to save the entry press the back button to return the oven to Program Edit without saving 5 Press BACK button to return to READY display ACCESSING THE PROGRAM MENU 1 To access the PROGRAM MENU select the BACK button on the main menu screen 2 Then selec...

Page 14: ...r 4 For Stage 1 rotate the dial to input desired time 5 Input desired temperature 6 Input desired microwave power 7 Input desired fan speed 45 6 12 7689 3 2 22 5 9 Press SAVE button on screen 6 0 2 2 23 1 3 4 2 5 10 Enter Item Names using letters on keypad and touch SAVE TOUCH SCREEN COOKING PROGRAM MENU KEYPAD Push Push Push Push Push Push SAVE SAVE SAVE SAVE SAVE ASSIGNED NAME Mozz Ch St SPACE C...

Page 15: ...Name Options Single digit entry 1 Digit Entry Double digit entry 1 Level 2 Levels 2 Menu Setting 3 Levels Manual cooking allowed 3 Manual Lock Manual cooking not allowed Changes to programs allowed 4 Program Lock Password needed Opening door resets timer 5 Door Open Opening door pauses cook cycle Off 6 Keybeep On Low Medium 7 Keybeep Volume High Continuous until door is opened Three beeps once 8 E...

Page 16: ...lect the desired operation by highlighting Transfer card to oven or Transfer oven to card with the knob 6 Press the Start pad to begin the transfer The screen will indicate transferring and indicate done when transfer is complete 8 Remove EZCard and close the protective cover Note You can exit from programing the oven by pressing off keypad 7 Press the SAVE pad to complete the process Standby Mode...

Page 17: ...Scroll Down to highlight food categories Back Enter Menu Screen ON OFF Program Temperature Manual Cook Number Pads Stop Start Press to preheat oven or turn oven off Fan will continue to run if temperature is over 200 F 95 C TEMPERATURE Keypad Press to check set temperature Press to change temperature Press Number keypads to enter or change temperature Press Enter to save PROGRAM Keypad Press to pr...

Page 18: ...wxyz C 1 D 291E F 1G The oven fan will continue to run to cool the oven The oven Cooling Mode Icon appears and stays on until the oven temperature is below 200 F 95 C To avoid damage to the convection motor do not turn off power by unplugging the unit or shutting off the power breaker until the fan stops C 1 HH F 1G The Oven Off Icon appears for 5 minutes then the display goes blank 1 Sandwich 2 M...

Page 19: ... down further allowing you to input quantities different food types etc 1 Sandwich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 1 Biscuit E B C 2 B fast Croissant 3 Croissant Sand 4 English Muff san 5 Biscuit S E C 6 7 8 9 0 Sandwich Breakfast 1 Breakfast 2 Poultry 3 Meat 4 Seafood 5 Vegetarian 6 7 8 9 0 Sandwich THREE MENU LEVELS TWO MENU LEVELS ONE MENU LEVEL Use Scroll Up and...

Page 20: ...n and close door 5 Press Enter to start cooking process 6 At end of cooking cycle oven beeps and displays animation at right to indicate food can be removed 1 2 3 1 3 2 4 6 5 7 8 0 9 abc def jkl ghi mno tuv pqrs wxyz 1 Sandwich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 Breakfast Poultry Meat Seafood Vegetarian 0 Breakfast Lunch Vegetables Appetizers Potatoes 1 2 3 42 55 Small...

Page 21: ... category is displayed and the word Manual is in the display How to Save A Manual Cook Program to the Menu 40 6 204 4 0 1 7 4 achieved from manual cooking save the manual cook item 1 To save press Enter keypad Note Option 5 must be set to save after manual cook 2 Highlight Menu Category by using Scroll Up or Scroll Down keypad or create new Menu Category name Press Enter keypad 3 Highlight food ca...

Page 22: ...croll Up or Scroll Down from the screen 3 Press Enter then select the food category food item to be programed using the Scroll Up or Scroll Down keypad PROGRAM MENU OVERVIEW EDITING OR ADDING MENU PROGRAM SETTINGS 1 Sandwich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 6 Press the Enter keypad and cook settings will appear 7 Use Scroll Up or Scroll Down keypad to Select Temperat...

Page 23: ...wich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 A Highlight desired Menu Category B Press Enter C Highlight desired Food Category 1 Sandwich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 CCC D A J E F 7 G C F In order to add program settings you must name your item 7 49 4 Press the Program keypad 1 Breakfast 2 Poultry 3 Meat 4 Seafood 5 Vegetarian 6 7 8 9 0 S...

Page 24: ...Refer to Owner s Manual for complete cleaning instructions Options Setting Name Options 01 Digit Entry Single digit entry Double digit entry 02 Text Case Caps Lower case Mixed 03 Menu Setting 01 10 Items 02 100 Items 03 360 items 04 Manual Cook Manual cooking allowed Manual cooking not allowed 05 Manual Save Save after manual cook Do not save after manual cook 06 Program Password Password needed C...

Page 25: ...on 17 by pressing Back or repeatedly pressing Enter 5 Select the desired operation by highlighting Transfer card to oven or Transfer oven 9 3 2 with the Scroll Up or Scroll Down keypad Note 5 3 9 3 2 3 6 seconds before proceeding to Step 6 6 Press the Program pad to begin the transfer The screen will indicate TRANSFERRING and indicate DONE when transfer is complete Note The screen will indicate NO...

Page 26: ...24 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Oven Construction 4 ...

Page 27: ...anel Outercase Back OVEN CONSTRUCTION PANELS TOP SIDE Right Outer Panel Torx T 15 Torx T 15 Door To remove side panels loosen the three top T 15 torx screws Remove the three rear T 15 torx screws slide panel to the rear and then down for removal ...

Page 28: ...26 Door Construction Door Assembly ...

Page 29: ... 1 High Voltage Transformers Magnetron TCO s Temp Sensor RTD Convection Switch Primary Triac TR2 Triac TR1 Magnetron 1 HV Transformers Magnetrons Fuses Sensor Triac s Magnetron TCO s Capacitor Diodes Capacitor Diode Right Side Capacitor Diode Left Side Magnetron 2 Magnetron 2 Convection Heater Note If Main Fuse F1 is blown replace Relay Monitor Board and Power Relay Convection Heater Element ...

Page 30: ...ooling Fans Thermocouple Temp Sensor RTD Radiant Power Supply Board 24 VDC Circuit Boards Power Relay Limiter Triac Thermocouple Temp Sensor RTD Cooling Fans Convection Motor Snubber Note If Main Fuse F1 is blown replace Relay Monitor Board and Power Relay Catalytic Converter Located inside plenum ...

Page 31: ...Display Knob Collar Knob Data Key Board Data Key Board Holder AXP5201 MXP5201 AXP5203 MXP5203 CONTROL PANEL ASSEMBLY Data Key Plug Caution Do not handle touch screen display by the sides This may damage the display circuitry Handle using the corners Bezel Filter Board ...

Page 32: ... USB Board Eschutcheon Touch Panel Assembly Display Board VFD Board MXP5221 MXP5223 CONTROL PANEL ASSEMBLY USB Port Plug ...

Page 33: ...Gear Assembly Antenna Rivet Plastic Radiant Heater Alignment Arrows Gear Assembly Antenna Rivet Plastic Antenna Motor Cam Note Plastic Rivet cannot be reused Note Requires 15 16 26mm Deep Socket Flat Washer Multi Wave Spring Washer Lock Nut ...

Page 34: ... nuts studs antenna and ceramic tray installed in waveguide with installation instructions Ceramic Tray Waveguide Ceramic trays can be replaced without replacing waveguide Ceramic trays for both waveguides are available as a separate kit which includes 1 ceramic tray and a tube of high temperature sealer with installation instructions 012334 5 01233 9 9A Ceramic Tray ...

Page 35: ...33 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Interlock Switch Service 5 ...

Page 36: ... proper switch activation 3 Tighten mounting screws 4 Preheat oven to set temperature and verify switch adjustment settings and function Note To ensure proper switch adjustment the switch mounting MUST be tightened after each adjustment prior to testing the door alignment Removal 1 Remove switch assembly mounting screw 2 Push switch assembly 1 2 inch 13mm towards back of oven 3 Twist mounting leg ...

Page 37: ...35 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Oven Performance Test 6 ...

Page 38: ...l in oven 6 Oven will beep remove test bowl from oven PREHEAT MENU 4 Press Pad 3 twice for 33 seconds 5 Press Start 7 Press OFF to return to PREHEAT MENU See page 11 for Oven Performance Test procedure Note To run Oven Performance Test the OVEN CAVITY MUST BE AT ROOM TEMPERATURE and the displaymustread MICROWAVEONLYmode Seebelowusingovenasamicrowaveoven IfMICROWAVE ONLY is not in display you must ...

Page 39: ...tion by pressing Enter keypad then use Scroll Up and Scroll Down keypad to select option 15 Scroll Up and Scroll Down keypad to highlight Microwave Only Icon 4 Press Start keypad to save and press Stop Reset to exit options mode 5 Option 6 if password needed is highlighted press Program keypad to view or edit password 0 1 23 0 45 6 To run Performance Test using microwave only follow these steps 76...

Page 40: ...onds measure and record the temperature T1 3 Place test container of water in the center of oven cavity and close door 4 Heat the water for a 33 second full power cycle NOTE Use a digital watch or a watch with a second hand for ovens with electromechanical timers 5 At end of the cycle remove test container Using the thermometer stir water for five to ten seconds and record temperature T2 6 Subtrac...

Page 41: ...39 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Component Testing Procedures 7 ...

Page 42: ...If no voltage check H V board and wiring Capacitor Discharge Capacitor Remove wires from capacitor terminals and connect ohmmeter set on highest resistance scale to terminals Also check between each terminal and capacitor case Between Terminals Meter should momentarily deflect towards zero then return to over 5 M If no deflection occurs or if continuous deflection occurs replace capacitor Terminal...

Page 43: ... for measurement NOTE If using a digital meter it must contain a battery of 6 volts minimum Wire harness High voltage board to display module harness Test continuity of wires Indicates continuity Line Voltage ST2 GN YL OR BU Disconnect ST2 Fan should operate at High Speed Primary switch Secondary switch Monitor Interlock switch Com NO NC ST1 ST2 NC to Com NO to Com Indicates continuity Indicates i...

Page 44: ...42 AXP5201 AXP5203 MXP5201 MXP5203 50 Hz Service Test 8 ...

Page 45: ...the control boards and information about door cycles and tube hours NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test CLEAR INFO Press this pad to reset the Door Cycles and Tube Hours back to zero EXIT Press this pad to return to the ovens Main Menu Hidden Pad 1 1 Press OFF pad until PRESS TO PREHEAT appears 2 Press Hidden...

Page 46: ...this pad to return to the Main Menu RANGE Under normal operation each mag s amp draw should be 5 12 amps Manual Operation of Magnetron 1 Screen This screen will allow operation of Magnetron 1 and show the number of amps being drawn NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test TURN ON This pad will toggle between turni...

Page 47: ...s pad to return to the Main Menu RANGE Under normal operation the amp draw should be 5 12 amps Convection Heater Screen This screen will allow operation of the convection heater and show the number of amps being drawn NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test TURN ON This pad will toggle between turning the heater ...

Page 48: ...Menu RANGE Under normal operation the amp draw should be 10 16 amps Convection Fan Low Speed Screen This screen will allow operation of the convection fan at a low speed and show the number of amps being drawn NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test TURN ON This pad will toggle between turning the convection fan ...

Page 49: ...is pad to return to the Main Menu RANGE Under normal operation the amp draw should be 0 6 2 6 amps Cooling Fan Screen This screen will allow operation of the cooling fan show the number of amps being drawn NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test TURN ON This pad will toggle between turning the cooling fan on and ...

Page 50: ... to return to the Main Menu RANGE Under normal operation the amp draw may be to low to read RTD Status Screen This screen will show the temperatures being reported to the RTD s in the oven The maximum temps seen by the controller are also recorded for diagnostic purposes NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test CA...

Page 51: ...EV TEST Press this pad to go to the previous Service Mode Test CANCEL Press this pad to return to the Main Menu Error List Screen This screen will show a description of the types of errors that can occur NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test CANCEL Press this pad to return to the Main Menu 12 13 0 1 2 1 3 0 1 3...

Page 52: ...through the history of the error codes 1 10 CANCEL Press this pad to return to the Main Menu Voltage Switching Screen This screen will show the line voltage detected by the oven NEXT TEST Press this pad to go to the next Service Mode Test PREV TEST Press this pad to go to the previous Service Mode Test CANCEL Press this pad to return to the Main Menu Note To clear codes Press and hold Pad 1 until ...

Page 53: ...51 AXP5201 AXP5203 MXP5201 MXP5203 50 Hz Troubleshooting 9 ...

Page 54: ...r Loose Wire Connection Yes Error Code Appears 1 Refer To Display Diagnostics Page 19 PLUG OVEN IN No No PREHEAT TEMP 520 F PRESS TO PREHEAT PROGRAM CHANGE TEMP PREHEAT TEMP 520 F PROGRAM CHANGE TEMP 2 Clear Error History After Oven is Repaired NORMAL DISPLAY NORMAL DISPLAY POWER UP CONDITION Go to PREHEAT Condition PRESS TO PREHEAT See component test procedures section for testing procedures and ...

Page 55: ...AM CHANGE TEMP MENU BACK MANUAL COOK 1 2 3 4 5 6 READY PREHEAT TEMP 520 F PROGRAM MANUAL COOK MENU CHANGE TEMP PREHEAT CONDITION Indicates Rising Temperature OVEN PREHEATING PREHEAT TEMP 520 F PROGRAM CHANGE TEMP MENU BACK MANUAL COOK 1 2 3 4 5 6 READY PREHEAT TEMP 520 F PROGRAM MANUAL COOK MENU CHANGE TEMP NORMAL DISPLAY NORMAL DISPLAY NORMAL DISPLAY Indicates Temperature Reached See component te...

Page 56: ...ISPLAY VERSION 0 39 MAIN VER 0 46 EE 0 3 DOOR CYCLES 20 156 TUBE HRS 2156 EE 255 NEXT TEST PREV TEST EXIT CLEAR INFO PRESS NEXT TEST Yes MICROWAVE CONDITION SERVICE MODE OVEN INFORMATION DISPLAY VERSION 0 39 MAIN VER 0 46 EE 0 3 DOOR CYCLES 20 156 TUBE HRS 2156 EE 255 NEXT TEST PREV TEST EXIT CLEAR INFO SERVICE MODE MAGNETRONS 1 2 MAGNETRON 1 0 AMPS MAGNETRON 2 0 AMPS ACCEPTABLE RANGE NEXT TEST PR...

Page 57: ...LOSE DOOR PLACE FOOD CLOSE DOOR IN OVEN During oven operation the display may indicate one of the following 1 When you press the pad knob to preheat the oven the display indicates 2 During cooking the oven display indicates 1 After food is placed in the oven the door is closed the display indicates 1 After food is placed in the oven the door is closed the display indicates See component test proce...

Page 58: ...4 Inoperative Secondary Interlock Switch 5 Secondary Interlock Switch out of Adjustment 6 Broken or Loose Wire Connection 7 Inoperative HV System Magnetron See component test procedures section for testing procedures and results CHASSIS MEMORY ERROR 1 Unplug the oven and remove right side panel 2 Disconnect the data key board connector from the display board Figure 1 3 Plug the oven in See Caution...

Page 59: ...57 AXP5201 AXP5203 MXP5201 MXP5203 50 Hz Display Diagnostics 10 ...

Page 60: ...r 1 Check wire connector on main board J7 1 2 2 Test thermocouple RTD and replace if necessary 3 If thermocouple RTD test good replace electronic limiter G 2 Magnetron TCO Perform service test Magnetron 1 2 G 2 Cooling Motor Perform service test Cooling Fan H 0 Signal Missing Plug disconnected from J1 on main board H 1 Main Board Set Point Incorrect Unplug Plug oven in H 2 Main Board Replace main ...

Page 61: ...59 MXP5221 MXP5223 50 Hz Service Test 11 ...

Page 62: ...s Service Mode Test Press 0 pad for 5 seconds to reset the Door Cycles and Tube Hours back to zero 1 1 Press OFF pad until Icon appears 2 Press Hidden Pad 3 Press pads 1 3 5 7 9 The display indicates SERVICE MODE 1 3 2 4 6 5 7 8 0 9 abc def jkl ghi mno tuv pqrs wxyz Hidden Pad SERVICE MODE OVEN INFORMATION DISPLAY VERSION 11 MAIN VER 73 EE 3 DOOR CYCLES 1149 TUBE HRS 2156 01 SERVICE MODE OVEN INFO...

Page 63: ...etron 2 and show the number of amps being drawn 2 3 SERVICE MODE Magnetron 1 9 AMPS 02 SERVICE MODE Magnetron 1 9 AMPS 02 number number previous SERVICE MODE Magnetron 2 9 AMPS 03 SERVICE MODE Magnetron 2 9 AMPS 03 This pad will turn the magnetron off Press this pad to go to the next Service Mode Test Press this pad to go to the previous Service Mode Test This pad will turn the magnetron on RANGE ...

Page 64: ...amps previous This pad will turn the heater off RANGE Radiant Heater Screen This screen will allow operation of the radiant heater and show the number of amps being drawn 6 SERVICE MODE Radiant Heater 11 AMPS 05 SERVICE MODE Radiant Heater 11 AMPS 05 Press this pad to go to the next Service Mode Test Press this pad to go to the previous Service Mode Test This pad will turn the heater on Press this...

Page 65: ...E Convection Fan Low 0 0 AMPS 06 Convection Fan High Speed Screen This screen will allow operation of the convection fan at a high speed and show the number of amps being drawn 8 Press this pad to go to the next Service Mode Test Press this pad to go to the previous Service Mode Test This pad will turn the fan on RANGE Under normal operation the amp draw should be 0 6 2 6 amps It may not read amps...

Page 66: ...MODE Cooling Fan 0 0 AMPS 08 Antenna Motors Screen This screen will allow operation of the antenna motors and show the number of amps being drawn 10 Press this pad to go to the next Service Mode Test Press this pad to go to the previous Service Mode Test This pad will turn the antenna motors on RANGE Under normal operation the amp draw may be to low to read number previous This pad will turn the a...

Page 67: ...ous Service Mode Test previous previous Press the 0 pad for 5 seconds to reset the Maximum RTD temps to zero Memory Network Status Screen This screen will show which memory chips are present and if the oven is hooked up to an external network 12 SERVICE MODE Memory Network Chassis Memory Present DataKey Absent R54485 Network OK 11 SERVICE MODE Memory Network Chassis Memory Present DataKey Absent R...

Page 68: ...Press this pad to go to the previous Service Mode Test previous Voltage Switching Screen This screen will show the line voltage detected by the oven 14 SERVICE MODE Voltage Switching 208 Volt 13 SERVICE MODE Voltage Switching 208 Volt 13 Press this pad to go to the next Service Mode Test Press this pad to go to the previous Service Mode Test previous Press this pad repeatedly to exit Service Mode ...

Page 69: ...67 MXP5221 MXP5223 50 Hz Troubleshooting 12 ...

Page 70: ... 24 Volt Power Supply Board 8 Broken or Loose Wire Connection Yes Error Code Appears 1 Refer To Display Diagnostics Page PLUG OVEN IN No No 2 Clear Error History After Oven is Repaired NORMAL DISPLAY NORMAL DISPLAY POWER UP CONDITION Go to PREHEAT Condition See component test procedures section for testing procedures and results 4 Inoperative Filter Board ...

Page 71: ...nsor RTD Radiant 5 Inoperative Main Board 6 Broken or Loose Wire PREHEAT CONDITION NORMAL DISPLAY NORMAL DISPLAY See component test procedures section for testing procedures and results See component test procedures section for testing procedures and results 1 3 2 4 6 5 7 8 0 9 abc def jkl ghi mno tuv pqrs wxyz 1 Sandwich 2 Meat 3 Vegetarian 4 Seafood 5 Pasta Pizza 6 Bake Dess 7 8 9 0 2345 622 78 ...

Page 72: ... 12 AMPS SERVICE MODE OVEN INFORMATION DISPLAY VERSION 11 MAIN VER 73 EE 3 DOOR CYCLES 1149 TUBE HRS 2156 PRESS ENTER Yes MICROWAVE CONDITION Hidden Pad No Yes NORMAL DISPLAY NORMAL DISPLAY 6 Inoperative Triac See component test procedures section for testing procedures and results See component test procedures section for testing procedures and results See component test procedures section for te...

Page 73: ...tive Power Relay 3 Inoperative Primary Interlock Switch 4 Inoperative Secondary Interlock Switch 5 Interlock Switch Assembly out of Adjustment 6 Broken or Loose Wire Connection 7 Inoperative HV System Magnetron Change Option Code 12 to OFF PREHEAT OVEN NOT AT PREHEAT OVEN NOT AT TEMPERATURE 1 At the end of a cook cycle and the food is removed and the door is closed the display indicates 2 When a p...

Page 74: ...or from the display board Figure 1 3 Plug the oven in See Caution below 4 Carefully reinstall data keyboard connector onto the display board 5 Press and hold Pad 2 The display will indicate user options 6 Press Save pad Note If chassis memory error returns replace data keyboard CAUT ION Oven is energized use care when plugging connector into data key board Option 12 This is activated at the factor...

Page 75: ...73 MXP5221 MXP5223 50 Hz Display Diagnostics 13 ...

Page 76: ...eeded Max Temp Unplug Plug oven in If G 0 continues to appear 1 Check wire connector on main board J7 1 2 2 Test thermocouple RTD and replace if necessary 3 If thermocouple RTD test good replace electronic limiter G2 Magnetron TCO Perform service test Magnetron 1 2 G2 Cooling Motor Perform service test Cooling Fan H0 Signal Missing Plug disconnected from J1 on main board H1 Main Board Set Point In...

Page 77: ...75 AXP5201 AXP5203 MXP5201 MXP5203 MXP5221 MXP5223 50 Hz Wiring Diagrams Schematics 14 ...

Page 78: ...Y PRIMARY INTLK SWITCH TERM BLOCK TERM BLOCK NO COM NC RADIANT RTD WH THERMOCOUPLE MAGNETRON 2 YL BR BU GY OR VT VT SECONDARY INTLK SWITCH NO COM NC GY OR VT BR RD YL VT YL OR BU OR BK VT FUSE F6 BU GY FUSE F5 BU BK GY GY VT VT WH YL RD WH BK YL BK YL FUSE F2 F3 F4 BR BR FUSE F1 OR BK OR RD BU RD BU RD RD RD YL YL YL YL MAGNETRON 1 BR BU RD RD 1 G 2 GN YL OR BU VT OR CONVECTION HEATER TRIAC TR3 GY...

Page 79: ...DC U17 20025502 J14 2 J9 1 J8 7 J9 2 J4 1 G T1 T2 TR1 J14 1 J8 8 U19 U8 K1 G T1 T2 40ATR3 G T1 T2 40ATR4 G T1 T2 TR2 J9 3 J9 4 SECONDARY INTERLOCK PRIMARY INTERLOCK U10 U15 J5 1 J5 4 J5 3 J5 2 K2 J5 5 2 4 0 1 6 8 MONITOR INTERLOCK G T1 T2 40ATR2 J8 2 J8 3 J8 1 U11 K3 J6 3 J6 1 J6 2 200 230 CONTROL U14 K4 J6 6 J6 4 J6 5 200 230 G T1 T2 40ATR1 J8 5 J8 6 J8 4 F3 T2 TO HV CIRCUIT LEFT MAGNETRON T1 TO ...

Page 80: ...78 Wiring Diagram Sample MXP5221 ...

Page 81: ... 5 GND 24VDC U17 20041701 J14 2 J9 1 J8 7 J9 2 J4 1 G T1 T2 TR1 J14 1 J8 8 U19 U8 K1 G T1 T2 40ATR3 G T1 T2 40ATR4 G T1 T2 TR2 J9 3 J9 4 SECONDARY INTERLOCK PRIMARY INTERLOCK U10 U15 J5 1 J5 4 J5 3 J5 2 K2 J5 5 2 4 0 1 6 8 MONITOR INTERLOCK G T1 T2 40ATR2 J8 2 J8 3 J8 1 U11 K3 J6 3 J6 1 J6 2 200 230 CONTROL U14 K4 J6 6 J6 4 J6 5 200 230 G T1 T2 40ATR1 J8 5 J8 6 J8 4 F3 T2 TO HV CIRCUIT LEFT MAGNET...

Page 82: ...BA Wiring Diagram Sample MXP5223 ...

Page 83: ... T1 T2 TR1 J14 1 J8 8 U19 U8 K1 G T1 T2 40ATR3 G T1 T2 40ATR4 G T1 T2 TR2 J9 3 J9 4 SECONDARY INTERLOCK PRIMARY INTERLOCK U10 U15 J5 1 J5 4 J5 3 J5 2 K2 J5 5 2 4 0 1 6 8 MONITOR INTERLOCK G T1 T2 40ATR2 J8 2 J8 3 J8 1 U11 K3 J6 3 J6 1 J6 2 200 230 CONTROL U14 K4 J6 6 J6 4 J6 5 200 230 G T1 T2 40ATR1 J8 5 J8 6 J8 4 F3 T2 TO HV CIRCUIT LEFT MAGNETRON T1 TO HV CIRCUIT RIGHT MAGNETRON INTERLOCK POSITI...

Page 84: ...2011 ACP Inc Cedar Rapids Iowa 52404 Part No 16400017 Printed in U S A 12 11 CCCD 7 D7 ...

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