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Maytag ALD510D Service Manual

2006 international countertop commercial microwave ovens
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Service
This manual is to be used by qualified appliance
technicians only. Maytag does not assume any
responsibility for property damage or personal
injury for improper service procedures done by
an unqualified person.
2006
International
Countertop
Commercial
Microwave
Ovens
This Base Manual covers general information
Refer to individual Technical Sheet
for information on specific models
This manual includes, but is
not limited to the following:
ALD510D
UALD510D
ALD510
UALD510
MLD510D
UMLD510D
MLD510
UMLD510
MENUMASTER
C O M M E R C I A L
M I C R O W A V E
O V E N
P1331003M
P1331004M
P1331005M
P1331006M
P1331007M
P1331008M
P1331009M
P1331010M
16026969
April 2006
R

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  Summary of Contents for Maytag ALD510D

  • Page 1 M I C R O W A V E O V E N Service This manual is to be used by qualified appliance technicians only. Maytag does not assume any responsibility for property damage or personal injury for improper service procedures done by an unqualified person.
  • Page 2: Important Information

    Important Notices for Servicers and Consumers Maytag 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 3: Table Of Contents

    Dial Model - Quick Reference Guide ....... A-2 Record Keeping and Notification Electonic Model - Quick Refence Guide ....A-3 After Measurement ..........18 Troubleshooting Operating Instructions for Holaday HI1501, HI1510, and HI1710 ........19 Testing Procedures ..........20-21 Power Test..............22 16026969 ©2006 Maytag Services...
  • Page 4: Important Safety Information

    Important Safety Information 16026969 ©2006 Maytag Services...
  • Page 5 Important Safety Information 16026969 ©2006 Maytag Services...
  • Page 6 Important Safety Information 16026969 ©2006 Maytag Services...
  • Page 7: Grounding Instructions

    There is no valid reason for this action at any time; The basic design of the Amana and Menumaster nor will it be condoned by Maytag. microwave ovens make it an inherently safe device to 9. IMPORTANT: Before returning a microwave to a both user and servicer.
  • Page 8: Wiring

    Wire insulation material and thickness is designed and regulated for electrical spacing purpose only, but cannot always be relied upon because of possible cuts and/or abrasions, which can occur during servicing. 16026969 ©2006 Maytag Services...
  • Page 9: General Information

    • Clean door and sealing surfaces of oven according to instructions in “Care and Cleaning” section. • Place radio, television, etc. as far as possible from oven. • Use a properly installed antenna on radio, television, etc. to obtain stronger signal reception. 16026969 ©2006 Maytag Services...
  • Page 10: Troubleshooting Procedures

    • Use plastic wrap or lid. Uneven cooking. Inconsistent food thickness, • Stir once or twice while inconsistent fat or m oisture distribution within the food cooking soup, cocoa, milk, etc. products. 16026969 ©2006 Maytag Services...
  • Page 11: Electronic Models

    Troubleshooting Procedures (Electronic Models) Trouble 1: Oven does not operate at all, no inputs can be accepted. Replace Interlock Switch Assembly Replace Interlock Switch Assembly Replace Control Board Replace Interlock Switch Assembly 16026969 ©2006 Maytag Services...
  • Page 12 Troubleshooting Procedures (Electronic Models) Trouble 2: Display shows all figures selected, but does not start cooking even though desired program and time is set when the START pad is pressed. Replace Control Board 16026969 ©2006 Maytag Services...
  • Page 13 Troubleshooting Procedures (Electronic Models) Trouble 3: No microwave when fan motor operates. 91 ohms Replace Control Board 16026969 ©2006 Maytag Services...
  • Page 14: Electronic Models

    Replace Display does Malfunction Check each control not indicate Normal of control pad on touch board. programming board. panel. at all, even if panel is touched. Replace Malfunction Abnormal membrane of membrane keypad. keypad. 16026969 ©2006 Maytag Services...
  • Page 15: Dial Models

    Fuse again Replace high voltage transformer NO Continuity If outlet has proper voltage, check Replace power supply cord. continuity of power supply cord. 16026969 ©2006 Maytag Services...
  • Page 16: Dial Models

    Meter with 6V or higher voltage batteries should be used to check the normal direction resistance of the diode Check the isolation of filament NO Continuity Replace high voltage winding of high voltage transformer. transformer. Good Replace magnetron 16026969 ©2006 Maytag Services...
  • Page 17: Service Information

    This will cause internal arcing and high secondary current if high voltage is applied. R.F. Capacitors - May short to chassis. This condition will also cause loss of high voltage. Output Antenna Ceramic Fins Anode Block Magnet Terminals/R.F. Capacitors Not Replaceable Serial Number 16026969 ©2006 Maytag Services...
  • Page 18: Microwave Leakage Testing

    3. While measuring the leakage, always use the two inch (5 cm) spacer supplied with the probe. 4. Press the start pad or turn on the timer and with the magnetron oscillating, measure the leakage by holding the probe perpendicular to the surface being measured. 16026969 ©2006 Maytag Services...
  • Page 19: Troubleshooting

    This could cause possible probe burn-out. Greatest leakage is generally found at the corners. After maximum leakage is established to be within the meter scale range, then probe may be moved horizontally around the door surface. 16026969 ©2006 Maytag Services...
  • Page 20: Testing Procedures

    Test continuity of wires Indicates continuity Electronic control Test interlock assembly switches. If interlock switch assembly and board Test cavity TCO. cavity TCO is operating correctly. If the control board still has no display, replace control board. 16026969 ©2006 Maytag Services...
  • Page 21 5 & 9 Continuity POWER LEVEL ..6 & 9 Continuity DEFROST ....7 & 9 Continuity CHECK PROGRAM ..1 & 10 Continuity PROGRAM....2 & 10 Continuity QTY 2X ....... 3 & 10 Continuity 16026969 ©2006 Maytag Services...
  • Page 22: Power Test

    24....2400 7.5 .... 1400 13.... 2400 17 ....1700 25....2500 9.5 .... 1700 13.5..2500 18 ....1800 27....2700 10 ..... 1800 15.... 2700 19 ....1900 30....3000 10.5 ..1900 16.5..3000 16026969 ©2006 Maytag Services...
  • Page 23: Disassembly Procedures

    Non-insulated terminals: Use a small blade screwdriver to depress locking-tab and pull on terminal. DO NOT PULL ON WIRE. 1 Release Wire locking-tab 2 Pull 16026969 ©2006 Maytag Services...
  • Page 24: Door Assembly

    To avoid property damage, care must be taken when adjusted for any reason. prying choke cover from oven door. 4. Slide latch assembly downward and pull away from door frame to release. 16026969 ©2006 Maytag Services...
  • Page 25: Control Panel (Electronic)

    If the monitor fuse is blown by a failed switch operation, all switches and controller must be replaced. Timer Timer Timer Coupler Knob 16026969 ©2006 Maytag Services...
  • Page 26: High Voltage Capacitor

    (see "Outer Case" procedure). 2. Discharge high voltage capacitor, (see "High Voltage Capacitor" section). 3. Disconnect diode from high voltage capacitor and remove screw securing diode to ground. 4. Replace diode and reverse procedure to reassemble. 16026969 ©2006 Maytag Services...
  • Page 27: High Voltage Fuse

    Before replacing a blown monitor fuse, test the primary interlock switch, secondary interlock switch, monitor switch, and power relay contacts for proper operation. If the monitor fuse is blown by a failed switch operation, all switches and controller must be replaced. 16026969 ©2006 Maytag Services...
  • Page 28: Magnetron

    During replacement of magnetron, be certain the R.F. anode gasket is in place around the anode stud. W ARNING Stirrer A microwave leakage test must be performed anytime Cover a magnetron assembly is removed, replaced, disassembled, or adjusted for any reason. Plastic Rivet 16026969 ©2006 Maytag Services...
  • Page 29: Stirrer Motor

    4. Clean oven cavity bottom where new oven tray will make contact using mineral spirits or any nonflammable degreasing solvent. NOTE: Detergents, soap, and water are not sufficient to remove oil and grease. 5. Place new tray into unit. 16026969 ©2006 Maytag Services...
  • Page 30 Appendix A 16026969 A–1 ©2006 Maytag Services...
  • Page 31: Dial Model - Quick Reference Guide

    Turn knob(s) to desired new setting. To set cooking time to zero, turn time entry knob counterclockwise to “0”. or full product documentation visit: © 2004 Amana Appliances Part No.12891302 www.amanacommercial.com/wavelink Amana, Iowa 52204 Printed 09/04 ™ A–2 16026969 ©2006 Maytag Services...
  • Page 32: Electonic Model - Quick Refence Guide

    3 stage, --END-- shows in the display. STOP/ START/ RESET +30 SEC • Up to three different stages can be programmed. 7. Press STOP/RESET pad to save programming changes. • Programming function ends. 16026969 A–3 ©2006 Maytag Services...
  • Page 33 NOTE: By repeatedly touching the +30 SEC pad, you can also extend the reheating time to a total of 5 minutes, in 30 second increments. or full product documentation visit: © 2004 Amana Appliances Part No.12891301 Amana, Iowa 52204 ™ www.amanacommercial.com/wavelink Printed 09/04 A–4 16026969 ©2006 Maytag Services...