ACP ARX1 Service Manual
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ACP ARX1 Service Manual

High speed commercial combination oven
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This document covers ARX* and MRX* series models
Service Manual
HIGH SPEED COMMERCIAL COMBINATION OVEN
Models Covered: ARX1, ARX1BL, ARX2, ARX2BL
MRX1, MRX1BL, MRX2, MRX2BL
Keep these instructions for future reference.
Please read this manual thoroughly before attempting to
install, operate or service this equipment.
Prior to servicing this equipment, please refer to the
SAFETY INSTRUCTIONS contained in this manual for
important safety information.
16400033
INC.
December 2018
Accelerated Cooking Products

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Summary of Contents for ACP ARX1

  • Page 1 This document covers ARX* and MRX* series models Service Manual HIGH SPEED COMMERCIAL COMBINATION OVEN Models Covered: ARX1, ARX1BL, ARX2, ARX2BL MRX1, MRX1BL, MRX2, MRX2BL Keep these instructions for future reference. Please read this manual thoroughly before attempting to install, operate or service this equipment.

  • Page 2: Table Of Contents

    Manual Organization: Tabs  25 Oven Programming: USB Flash Drive  26 Export Menu via USB Flash Drive  26 Open Menu in ACP Programming Application  26 Import Menu via USB Flash Drive 26 Oven Programming: Wi-Fi and Ethernet  27...
  • Page 3 Table of Contents (continued) With the PIN Code not enabled 39 Oven Tests 42 Power Test 42 Set Up: 42 Equipment 42 Procedure 42 Microwave Leak Test 43 Measuring Procedure44 Error Codes 45 Troubleshooting Chart 46 Panel Removal 48 Top Panel 48 Side Panels 48 Rear Panel 48 Removal and Replacement 49...
  • Page 4 Table of Contents (continued) Secondary, Monitor and Tertiary Interlock Switches 63 Testing63 Removal and Replacement63 For Secondary and Monitor Switches 63 For Tertiary Switch 63 Power Supply Board 64 Testing64 Removal and Replacement64 Main Control Board65 Testing65 Removal and Replacement65 Touch Screen Display Board 66 Testing66 Removal and Replacement66...

  • Page 5: Model Identification

    To download the latest and greatest version of the ACP Programming Application please visit acpsolutions.com/oven-programming/ Firmware Updates For the optimal user experience, ACP recommends using the latest version of oven firmware. To download firmware updates and installation instructions, or to opt-in for email update notifications, please visit acpsolutions.com/oven-programming/ ©2018 ACP, Inc.
  • Page 6 Important Safety Information ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 6 of 80 Original Instructions...

  • Page 7: Important Safety Instructions

    Important Notice for Servicers and Consumers ACP will not be responsible for personal injury or property damage from improper service procedures Pride and workmanship go into every product to provide our customers with quality products It is possible, however, that during its lifetime a product may require service.
  • Page 8 There is no valid reason for this action at any time; nor will it be condoned by ACP The oven should NEVER be operated if the door IMPORTANT: Before returning an oven to a does not properly seat against the seal;...

  • Page 9: General Safety Instructions

    2 hinges and latches (broken or loosened) 3 door seals and sealing surfaces D The oven should not be adjusted or repaired by anyone except properly qualified service personnel. SAVE THESE INSTRUCTIONS ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 9 of 80...
  • Page 10 Record all inspections and repairs for future use DO NOT use metal utensils in oven DO NOT use aluminum foil in oven SAVE THESE INSTRUCTIONS ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 10 of 80 Original Instructions...
  • Page 11 Introduction Theory of Operation Sequence of Operation ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 11 of 80 Original Instructions...

  • Page 12: Theory Of Operation

    Blower’s speed from 0 to 100% based on the program At the end of each cooking stage, the oven can change to a different microwave level and/or blower speed. During these cooking stages, the oven controls the cooking temperature by energizing and de-energizing a heating element ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 12 of 80...

  • Page 13: Specifications 14

    Specifications Power Specification · Input · Output · Consumption Oven Dimensions Weight Grounding Installation ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 13 of 80 Original Instructions...
  • Page 14 12 ¼“ (312mm) 12 ¼“ (312mm) Weight Crated 152 lbs (69 kg) 134 lbs (61 kg) Uncrated 134 lbs (61 kg) 116 lbs (53 kg) ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 14 of 80 Original Instructions...

  • Page 15: Grounding And Installation

    C Allow at least 1/2” (127 cm) of clearance around sides of oven D Install oven so oven bottom is at least 3 feet (91.5 cm) above floor. ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 15 of 80...
  • Page 16 Oven Operation Touch Panel Menu Descriptions Touch Screen Icon Descriptions Basic Oven Operation Preprogrammed Menu Manual Cooking ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 16 of 80 Original Instructions...

  • Page 17: Touch Panel Menu Descriptions

    Transfer a Menu file to the oven via USB Flash Drive USER OPTIONS • Modify a variety of user options such as key beep, temperature, etc ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 17 of 80...

  • Page 18: Touch Screen Icon Descriptions

    PROGRAMMED RECIPE ICON • Press to begin the Cook Cycle for the desired recipe Omelet Tuna Melt Crab Cakes Pizza ©2018 ACP, Inc. Part No. 16400033 Muffaleta Panini Reuben Panini Cedar Rapids, IA 52404 Page 18 of 80 Original Instructions...

  • Page 19: Basic Oven Operation

    Oven must be plugged in • Recipe and Menu creation via (Screen will power on to “Standby The Oven Fan will continue to ACP Programming Application Mode” within approximately 30 seconds.) run to cool the oven • USB Programing • Wi-Fi Programming •...

  • Page 20: Preprogrammed Menu

    Enable “Preheat Warning” in user options. 3 At the end of the cooking cycle, the oven beeps and displays animation Use oven mitts and/or paddle to carefully remove food from oven ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404...

  • Page 21: Manual Cooking21

    Maximum Cook Time is 99:99 (100 minutes and 13 seconds) Microwave and Fan can be set to power levels between 0-100% Note: You may also create and edit recipes using the ACP Programming Application. 1 After oven has preheated press Blue Menu Icon Note: To guarantee that oven reaches the desired temperature before the start of cook cycle, enable “Preheat Warning”...
  • Page 22 Programming Manual Programming Manual Organization: Folders Manual Organization: Tabs Oven Programming: USB Flash Drive Oven Programming: Wi-Fi and Ethernet ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 22 of 80 Original Instructions...

  • Page 23: Manual Programming

    2 Choose a background color and icon, or an image, to customize the ACP Programming Application. Menu Item For detailed instructions, 3 Press the Right Arrow Icon to move to the next screen please visit: acpsolutions.com/...

  • Page 24: Manual Organization: Folders

    Manual Organization: Folders Manually Create a Recipe Folder: Note: You may also create folders using the ACP Programming Application. 1 Press the Blue Menu Icon at the bottom of the screen 2 Press the “Manage Folders” option in the Menu Screen...

  • Page 25: Manual Organization: Tabs

    Manual Organization: Tabs Manually Create a Recipe Tab Note: You may also add recipe tabs using the ACP Programming Application. 1 Press the Blue Menu Icon at the bottom of the screen 2 Press the “Manage Tabs” option in the Menu Screen 3 Press the “Add Tab”...

  • Page 26: Oven Programming: Usb Flash Drive

    Items will be loaded on USB Flash Drive and ready to share or open in ACP Programming Application Open Menu in ACP Programming Application Note: For more comprehensive instructions, see ACP Programming Application User Guide online. 1 Insert Flash Drive into USB port on computer 2 Open ACP Programming Application 3 Select “File,”...

  • Page 27: Oven Programming: Wi-Fi And Ethernet

    Green Power Icon Oven will begin cooling down 6 Press the Red Stop Icon to return to Home Screen Menu items and settings will be uploaded and ready to use ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404...
  • Page 28 Care and Cleaning ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 28 of 80 Original Instructions...

  • Page 29: Care And Cleaning

    For a new oven, before using it for the first time: When oven is clean, spray damp towel with ACP Oven Shield Protectant (SH10) and wipe all interior surfaces DO NOT remove Oven Shield Turn...

  • Page 30: Weekly Cleaning 30

    Using a warm, damp, clean towel, wipe CAUTION: Wear rubber gloves and safety glasses the oven interior Rinse the towel and CLEAN OVEN INTERIOR: Spray oven door and cavity with ACP wring dry Repeat 2-3 times to remove Oven Cleaner (CL10) ⚠...

  • Page 31: User Options 32

    User Options Default User Options ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 31 of 80 Original Instructions...

  • Page 32: Access And Modify User Options

    3 Use this Menu to modify Oven Settings 4 Press the Left Arrow Icon to return to the Menu after making each change Note: You may also make User Options changes using the ACP Programming Application. Note: Programming the Preheat Temperature in the User Options Menu will set the oven to heat to a certain temperature each time it is powered on.

  • Page 33: Default User Options

    Every 30 Days Every 90 Days Every 90 Days Preheat Warning 2 Hours 2 Hours Auto Shut Off 4 Hours 4 Hours 8 Hours 8 Hours ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 33 of 80 Original Instructions...
  • Page 34 Firmware Update Procedure ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 34 of 80 Original Instructions...

  • Page 35: Firmware Update Procedure

    11 After about two minutes the words “Update Complete” will appear and a Green “Reboot” Icon will appear DO NOT remove the USB/ Flash Drive Press the Green Icon ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 35 of 80...
  • Page 36 Firmware Update Procedure 12 Once the ACP logo and Green Power Icon appear, remove the Flash Drive and press the Green Power Icon 13 Press the Blue Menu Icon and enter 1-3-5-7-9 to access Service Mode 14 Verify the Software Version displayed is new version...
  • Page 37 Troubleshooting Before Calling for Service Service Test Mode Oven Tests Error Codes Troubleshooting Chart ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 37 of 80 Original Instructions...

  • Page 38: Before Calling For Service

    “G0” error displays on Screen Oven Exceeded Max Temp After oven cools, press the red reset button found on back, bottom-right hand corner of oven. If “G0” error continues to appear, or reoccurs, contact ACP, Inc. ComServ Customer Service Amana® Commercial ARX Menumaster® MRX...

  • Page 39: Service Test Mode 39

    4 Press the radial pad “On” and ensure it is lit 5 Enter 1,2,3,4 as PIN Code and memorize, take a picture, or write it down 6 Press the Home Icon to return to Main Screen ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 39 of 80...
  • Page 40 Magnetron 1, by pressing Start to start or Stop to stop Pressing the Back Arrow Icon will return back one screen Pressing the Home Icon returns to opening screen Press Swipe Home Back (Left) Arrow ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 40 of 80 Original Instructions...
  • Page 41 Control to synchronize offset programmed by the factory Control to cavity temperature Pin Code Displays the 4 Digit Pin Code Pressing has no effect. ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 41 of 80 Original Instructions...
  • Page 42 Oven Tests All ACP Microwave Oven Power Outputs are rated using the IEC705 standards Using the IEC705 test method requires precision measurements and equipment that is not practical to be performed in the field. Using the following tests will indicate if the oven is performing satisfactorily...
  • Page 43 Check for radiation leakage after servicing Should the leakage be more than 4mW/cm , Contact ACP ComServ After repairing or replacing any microwave radiation safety device, keep a written record for future reference, as required by Federal CDRH / FDA / DHHS and...
  • Page 44 11 Return the probe to any “spike areas” and allow it to remain for 17 seconds Make a note of the highest reading 12 When test is complete, open door and dispose of water ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404...
  • Page 45 >263VAC Detected by the Main Control Board Check and correct incoming voltage Important Note: Error Code History cannot be cleared Oldest codes will automatically be deleted when the history log is full ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404...
  • Page 46 Cooling Fan Relay See Cooling Fan Relay testing Cooling Fan Run Capacitor See Fan Run Capacitor testing Cooling Fan Triac See Cooling Fan Triac testing ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 46 of 80 Original Instructions...
  • Page 47 • Use extreme caution when working with live circuits. ⚠ CAUTION • Extreme care must be taken when performing tests with line voltage applied. • Oven is heavy. ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 47 of 80 Original Instructions...
  • Page 48 2 Remove nine (9) Screws (3 along bottom, 1 on each side) using a Phillips Head Screwdriver or 1/4” Hex Socket 3 Lift up and out ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 48 of 80...
  • Page 49 Duct to the Antenna Chamber Duct 6 Disconnect Wires running through Grommet, making a note of where they connect 7 Lift out 8 Replace by reversing these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 49 of 80 Original Instructions...
  • Page 50 Pull straight up to remove Sensor 6 Remove two (2) Phillips Head Screws securing TCO 7 Remove TCO 8 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 50 of 80 Original Instructions...
  • Page 51 3 Discharge all HV Capacitors 4 Remove all Wires from the device 5 Remove two (2) Screws securing device 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 51 of 80 Original Instructions...
  • Page 52 3 Note all Wire locations 4 Remove all Wires from the device 5 Remove two (2) Screws securing device 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 52 of 80 Original Instructions...
  • Page 53 3 Note all Wire locations 4 Remove all Wires from the device 5 Remove two (2) Screws securing device 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 53 of 80 Original Instructions...
  • Page 54 HV Transformers for better access (see HV Transformer Removal and Replacement) 5 Remove two (2) Screws securing device 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 54 of 80 Original Instructions...
  • Page 55 4 Using a 1/4” Hex Socket, remove the four (4) Screws securing the Mounting Crossbar 5 Remove the Screws securing the Capacitor(s) to the Crossbar 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 55 of 80 Original Instructions...
  • Page 56 2 Remove Top Panel (see Panel Removal) 3 Remove Terminal from Capacitor 4 Remove the Screws securing the Diode(s) to the Crossbar 5 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 56 of 80 Original Instructions...
  • Page 57 (see Panel Removal) 3 Remove Wires from device 4 Remove two (2) Torx-head Screws using a T-15 Driver 5 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 57 of 80 Original Instructions...
  • Page 58 6 Remove four (4) Hex Nuts from Mounting Studs using 11/32” (9mm) Socket 7 Lift Magnetron from Studs 8 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 58 of 80 Original Instructions...
  • Page 59 5 Remove two (2) Screws from Stirrer Motor using 1/4” Socket 6 Remove E-Clip from Motor Shaft to remove Drive Gear 7 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 59 of 80...
  • Page 60 12 From inside the oven chamber, remove the four (4) 1/4” Hex Nuts from around the Antenna 13 Pull the Antenna down and remove 14 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 60 of 80...
  • Page 61 5 From the bottom of the oven, remove the four (4) Screws securing the device with a 1/4” Socket 6 To replace, reverse these steps Bottom of Unit ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 61 of 80...
  • Page 62 5 Remove two (2) Screws securing Primary Switch to Mounting Bracket using 1/4” Socket or Phillips Head Screwdriver 6 Replace with Kit (P/N 59174580) 7 Reverse these steps to complete replacement ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 62 of 80 Original Instructions...
  • Page 63 1 Remove Top and Right Side Panels 2 Remove two (2) Hex Head Screws securing Tertiary Switch 3 Remove Wires noting their locations 4 Reverse these steps to complete replacement ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 63 of 80...
  • Page 64 4 Remove two (2) Screws securing Mounting Bracket 5 Disengage four (4) Retaining Clips securing Power Supply Board 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 64 of 80 Original Instructions...
  • Page 65 4 Remove all Wiring Harnesses including Ribbon Harness to Display 5 Disengage seven (7) Retaining Clips securing Main Control Board 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 65 of 80 Original Instructions...
  • Page 66 4 Remove all Wiring Harnesses from Touch Screen Display Board 5 Remove four (4) Screws securing Touch Screen Display Board to Mounting Bracket 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 66 of 80 Original Instructions...
  • Page 67 4 Remove two (2) 11/32” (9mm) Hex Nuts securing Temperature Sensor to top of oven 5 Pull Temperature Sensor up and out to remove 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 67 of 80...
  • Page 68 9 Remove sixteen (16) Screws using 1/4” Socket 10 Pull the assembly out 11 The replacement part is an assembly • P/N 59174583 (includes Heater) 12 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 68 of 80 Original Instructions...
  • Page 69 Heater Mount to assembly 3 Remove Heater from assembly • Replacement Heater (P/N 59174593) 4 Reverse these and Convection Motor steps to complete replacement ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 69 of 80 Original Instructions...
  • Page 70 Plate and pull from oven 7 Remove Screws (4 per fan) securing Cooling Fan to Mounting Plate and remove Cooling Fan 8 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 70 of 80...
  • Page 71 2 Remove Top and Right Side Panels (see Panel Removal) 3 Discharge Capacitors 4 Remove Wires 5 Remove Hex Nut with 1/2” (13mm) Wrench 6 To replace, reverse these steps ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 71 of 80 Original Instructions...
  • Page 72 Wiring Diagrams / Schematics ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 72 of 80 Original Instructions...
  • Page 73 Wiring Diagrams & Schematics ELECTRICAL SCHEMATIC: Models ARX1, ARX1BL, MRX1, MRX1BL ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 73 of 80 Original Instructions...
  • Page 74 Wiring Diagrams & Schematics WIRING DIAGRAM: Models ARX2, ARX2BL, MRX2, MRX2BL ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 74 of 80 Original Instructions...
  • Page 75 Wiring Diagrams & Schematics ELECTRICAL SCHEMATIC: Models ARX2, ARX2BL, MRX2, MRX2BL ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 75 of 80 Original Instructions...
  • Page 76 Wiring Diagrams & Schematics WIRING DIAGRAM: Models ARX2, ARX2BL, MRX2, MRX2BL ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 76 of 80 Original Instructions...
  • Page 77 Notes ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 77 of 80 Original Instructions...
  • Page 78 Notes ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 78 of 80 Original Instructions...
  • Page 79 Notes ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 79 of 80 Original Instructions...
  • Page 80 ©2018 ACP, Inc. Part No. 16400033 Cedar Rapids, IA 52404 Page 80 of 80 Original Instructions...

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