Amana ACE208 Service Manual
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Amana ACE208 Service Manual

Amana ACE208 Service Manual

Commercial combination/convection microwave oven
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Enlarged version
Service
Commercial Combination/
Convection Microwave
Oven with 230/208 V, 60 Hz
Service Manual for
®
Amana
This manual is to be used by qualified appliance
technicians only. Amana does not assume any
responsibility for property damage or personal injury for
improper service procedures done by an unqualified
person.
®
This Base Manual covers all
Commerical Combination/Convection
Microwave Ovens with 230/208 V, 60 Hz.
Refer to individual Technical Sheet
for information on specific models.
ACE208
ACE230
RS2220002
Revision 0
November 2000

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Summary of Contents for Amana ACE208

  • Page 1 Oven with 230/208 V, 60 Hz Service Manual for ® Amana This manual is to be used by qualified appliance technicians only. Amana does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person. RS2220002 ®...

  • Page 2: Important Product Information

    Important Product Information WARNING WARNING To avoid risk of electrical shock, injury, or death, make Precautions to be observed before and during sure these grounding instructions are followed. servicing to avoid possible exposure to excessive microwave energy, or electrical shock disconnect Grounding Instructions power to oven.

  • Page 3: Table Of Contents

    Specifications ............. 18 Power Cord ............36 Light Socket ............36 Replacing Oven Light Bulb ........36 Component Location ........... 37 Amana • 2800 220thTrail • PO Box 8901 • Amana, Iowa • 52204 • Printed in the U.S.A. RS2220002 Rev. 0...

  • Page 4: Important Information

    (such as exposure to electrical shock) may result. CAUTION Amana will not be responsible for any injury or property damage from improper service procedures. If prefroming service on your own product, assume responsibility for any personal injury or property damage which may result.

  • Page 5: Important Safety Information

    11. If servicer encounters an emission reading over 4mw/ outlet. Do not operate on a two-wire extension cord. , servicer is to cease repair and contact Amana 2. Before servicing unit (if unit is operable) perform Service Department immediately for further direction.
  • Page 6 Important Safety Information CAUTION To avoid risk of personal injury or death of fire in the oven cavity: • DO NOT overcook food. Carefully attend equipment if paper, plastic, or other combustible materials are placed inside the equipment to facilitate cooking. •...

  • Page 7: Product Information

    Product Information Stirrer Blade Distributes microwave energy throughout the cavity. Transformer High Voltage High voltage transformer is used in this unit, which Blower/Fan Assembly supplies high voltage A.C. for operation of the Circulates cooling air throughout the convection or magnetron tube. microwave oven compartment and cavity.

  • Page 8: Installation

    This equipment should be when oven is in place. plugged into a separate 60 Hz circuit with the appropriate electrical rating label. Models ACE208 require a 208 voltage supply and model ACE230 requires a 230/240 voltage supply. When the...

  • Page 9: Care And Cleaning

    Express Cleaner. Repeat cleaning several times if appliance before cleaning. necessary. Saturate oven interior surfaces with Amana Convection Express Cleaner and let sit for 2 to 5 minutes. Rub vigorously with nylon scouring pad to CAUTION loosen debris.

  • Page 10: Display And Features

    Display and Features A—Oven Door Handle (Lift to open.) D—Display B—Rack Guides E—Side Control Panel C—Top Control Panel G—Air Intake Filter Oven Features Display Item flashes in display indicating keypads can be used and cooking Temperature is displayed in entries can be made. the time field.
  • Page 11 Display and Features (cont’d) Item is not 450F displayed POWER indicating keypad ITEM will not accept entries. To activate keypad, open and close COOK oven door—Item will then display. PREHEAT READY STANDBY LEVEL Preheat ready displays when oven has reached the preset preheat temperature.
  • Page 12 Display and Features (cont’d) PREHEAT POWER PROGRAM TIME TEMP STAGE SAVE ON / OFF LEVEL PREHEAT NOT READY Cooking Display DISPLAYS DESCRIPTION PREHEAT Start Pad PREHEAT READY displays when oven has START The start pad is used READY reached preheat temperature and is ready to cook. to begin a manual 00:00 time entry cooking...

  • Page 13: Programming

    Programming Programming Preheat Programming Pads Setting Oven is shipped from the factory for single pad programming. To change the oven default to double pad programming, see User Option section. To The convection temperature setting program the amount of time, power level, or temperature setting for a pad. can be set between 150°F to 475°F.

  • Page 14: Convection Cooking

    Convection Cooking CAUTION To avoid risk of burns, handle utensils, racks, and door with care. Allow oven, utensils, and racks to cool before cleaning. Oven, utensils, and racks, become hot during operation. To operate the oven for convection cooking only, you can use preprogrammed pads or manual time entry.

  • Page 15: Combination Cooking(Microwave And Convection)

    Combination Cooking (microwave and convection) CAUTION To avoid risk of burns, handle utensils, racks, and door with care. Allow oven, utensils, and racks to cool before cleaning. Oven, utensils, and racks, become hot during operation. To operate the oven for combination cooking, you can use preprogrammed pads or manual time entry.

  • Page 16: User Options

    User Options HIDDEN CONVECTION PREHEAT TIME EXPRESS ON / OFF Changing user options Options such as single or double pad programming, beep volume, and maximum cooking time can be changed to suit individual preferences. Didn’t like an option? Factory settings are marked in bold. To change options, oven must display STANDBY.

  • Page 17: User Maintenance

    • If code does not reappear, continue normal use with the oven. 2. If service code reappears, write down the service code displayed and err5 contact the nearest authorized Amana Servicer. err6 • Do not use oven until contacting the Amana Servicer. err7 RS2220002 Rev. 0...

  • Page 18: Specifications

    19 1/4" 21 1/8" 49 cm 54 cm 18" 46 cm 38 1/4" 97 cm MODEL ACE*** (*** indicates model number) Power Source ACE208 ACE230 Voltage AC 208 VAC 230 VAC Frequency 60 Hz Amperage 20 A Power Frequency 2450 MHz...

  • Page 19: Component Testing Procedures

    Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. Illustration Component Test Results Thermal cutout Disconnect all wires from TCO. Measure resistance across terminals. Control TCO..........
  • Page 20 Measure resistance across Approximately 20 Ω terminals A and B. Heating element Disconnect wires from terminals. assembly Measure resistance across heating Indicates continuity element. ACE208 ACE230 35 Ω 43 Ω Front element 1200 W ...... 29 Ω 35 Ω Rear element 1500 W ......
  • Page 21 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. Illustration Component Test Results Continuity is indicated as 100 Ω and Side touch panel Trace Measurement 3 &...
  • Page 22 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. H.V. board Pin 1 Pin 1 Pin 1 Pin 1 Pin 1 Pin 50 Pin 28 Pin 1 Pin 1...

  • Page 23: Test Modes

    6. Subtract the starting water temperature (Step 3) from Test Equipment Needed: the ending water temperature (Step 5) to obtain the • Amana power test kit R0157397 or temperature rise. • Menumaster power test kit M95D5. 7. Refer to the Temperature Chart.

  • Page 24: Convection Temperature Test

    Test Modes Convection Temperature Calibration Convection Temperature Test NOTE: It is normal for the average oven temperature to NOTE: It is absolutely necessary to own and use a vary from the oven setting by as much as 25°F. thermocouple type oven tester to accurately Difference will not effect cooking since recipes measure oven temperature.

  • Page 25: Radiation Leakage Testing

    WARNING DANGER Check for radiation leakage after servicing. Should the leakage be more than 4mW/cm inform Amana To avoid risk of personal injury or death avoid immediately. After repairing or replacing any radiation contacting any high voltage components. safety device, keep a written record for future reference, as required by D.H.H.S.

  • Page 26: Display Diagnostics

    Display Diagnostics CAUTION All repairs as described in this troubleshooting section are to be performed only after the caution procedures one through eight listed below have been followed. 1. Check grounding before checking for possible causes. 2. Be careful of the high voltage circuit. 3.

  • Page 27: Service Test

    Service Test NOTE: Unit must be in STANDBY mode. To Enter Service Mode, oven door must be closed. NOTE: Pads will not beep when pressed. ITEM POWER Press Hidden Pad Hidden PREHEAT Then COOK ON / OFF PREHEAT READY STANDBY LE VEL Press Display...
  • Page 28 Service Test Press Display Component Evaluation If no fan operation, check: Cooling fan motor and wheel ITEM POWER H.V. board (relay K1) Wiring COOK Toggles Cooling PREHEAT READY STANDBY LEVEL Fan ON/OFF. If no light operation, check: ITEM POWER Oven light H.V.

  • Page 29: Troubleshooting

    Troubleshooting Power Up Plug oven into power source. Proceed to DISPLAY DIAGNOSTICS. Error Code Appears ITEM POWER COOK PREHEAT READY STANDBY LEVEL 1. No line voltage. 2. Inoperative power cord. 3. Inoperative fuse. POWER UP CONDITION NORMAL 4. Inoperative display board. 5.

  • Page 30: Microwave Condition

    Troubleshooting Microwave Condition Open door, place cup of water in oven. Close oven door. enter desired enter PREHEAT POWER enter Press microwave TIME TEMP desired ON / OFF LEVEL 150 F power level. time START Press ITEM POWER 1. Inoperative top touch panel. 2.

  • Page 31: Disassembly

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Door Handle Inner Door Assembly Remove door handle by removing plactic plugs to gain 1. Remove door handle. access to set screws.

  • Page 32: Outer Case

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Outer Case 1. Remove screws securing outer case to chassis, see illustration below. 2. Slide outer case back and lift off. 3.

  • Page 33: Side Touch Panel Assembly

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Interlock Switch Module Side Touch Panel Assembly 1. See “Component Location” Figure 2, for location. 1.

  • Page 34: Display Module

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Triacs Display Module 1. See “Component Location” Figure 1, for location. 1. See “Component Location” Figure 1, for location. 2.

  • Page 35: Fan Blade

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Fan Blade Heater Box 1. Pull blade off shaft. 1. See “Component Location” Figure 3, for location. 2.

  • Page 36: Power Cord

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Power Cord Replacing Oven Light Bulb 1. See “Component Location” Figure 3, for location. WARNING 2.

  • Page 37: Component Location

    Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Component Location Display Module Touch Panel (Top) Triac #1 Heating Element A (front) Touch Panel (Side) Triac #2 Heating...
  • Page 38 Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Fan Thermal Magnetron Cutout Inlet Cover Waveguide Duct Control Thermal Cutout Heater Box Magnetron Thermal Back Panel Cutout High Voltage...
  • Page 39 Disassembly WARNING To avoid the risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. (Resistance Thermal Device) Light Lens Stirrer Shaft Light Lens Stirrer Blade Cover Stirrer Insert Stirrer Cover Stirrer Cover Mounting Clip Figure 4...

This manual is also suitable for:

Ace230

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