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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.
This Base Manual covers general information.
1800 W - 2005
Refer to individual Technical Sheet
for information on specific models.
Countertop
This manual includes, but is
not limited to the following:
RFS18MPS
P1330209M
Commercial
Microwave
Ovens
16026795
May 2006

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Troubleshooting

   Related Manuals for Maytag 1800 W - 2005

   Summary of Contents for Maytag 1800 W - 2005

  • Page 1

    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. This Base Manual covers general information. 1800 W - 2005 Refer to individual Technical Sheet for information on specific models.

  • 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

    Measurement with the Outer Panel Removed ... 18 Oven Light Removal ..........30 Measurement with a Fully Assembled Oven ..... 18 Appendix A Record Keeping and Notification After Measurement 18 Quick Reference Guides ........ A-2 – A-3 16026795 ©2006 Maytag Services...

  • Page 4: Important Safety Information

    1. Always operate the unit from an adequately grounded outlet. Do not operate on a two-wire switches there is not a valid reason for this action at anytime; nor will it be condoned by Maytag. extension cord. 9. IMPORTANT: Before returning a unit to a 2.

  • Page 5: Save These Instructions

    Remove wire twist-ties from paper or plastic bags before placing bag in oven. d. DO NOT use the cavity for storage. DO NOT leave paper products, cooking utensils, or food in oven. SAVE THESE INSTRUCTIONS 16026795 ©2006 Maytag Services...

  • Page 6: Precautions To Avoid Possible Exposure

    DO NOT place any object between the oven front d. The oven should NOT be adjusted or repaired face and the door or allow soil or cleaner by anyone except properly qualified service residue to accumulate on sealing surfaces. personnel. SAVE THESE INSTRUCTIONS 16026795 ©2006 Maytag Services...

  • Page 7: Grounding Instructions

    Models operate with a 120 supply voltage. When a microwave oven is on a circuit with other equipment, an increase in cooking times may be required and fuses can be blown. NEMA 5-20R/5-20P NEMA 5-15R/5-15P 120V–15AMP 120V–20AMP 16026795 ©2006 Maytag Services...

  • Page 8: Servicing Of Grounding Products

    X 10k (k–thousand ohms). When using this scale, it is important that your fingers do not touch the metal parts of the test probes. To do so will give a false indication of the ohm reading. 16026795 ©2006 Maytag Services...

  • Page 9: General Information

    A—Allow at least 1½ inches / 3.81 centimeters of clearance around top and sides of equipment. Proper air flow around equipment cools electrical components. With restricted air flow, oven may not operate properly and life of electrical parts is reduced. 16026795 ©2006 Maytag Services...

  • Page 10: Model Identification

    Warranty service must be performed by an authorized servicer. We also recommend contacting an authorized servicer, if service is required after warranty expires. Microwave Oven Description Removable Splatter Shield (Not Shown) Oven Door Window and Interior Light Oven Display Oven Control Pads Filter 16026795 ©2006 Maytag Services...

  • Page 11: Troubleshooting Procedures

    Uneven cooking. Inconsistent food thickness, Use plastic wrap or lid. inconsistent fat or moisture Stir once or twice while distribution within the food cooking soup, cocoa, milk, etc. products. 16026795 ©2006 Maytag Services...

  • Page 12

    2. Display shows a number or figure different from one Still have Failed Replace touched. trouble. controller. controller. 3. Random programming when touching other pads. 4. Display is fixed at some figure and can not accept any input. 16026795 ©2006 Maytag Services...

  • Page 13

    Capacitor is good, Normal voltage capacitor. (replace fuse only). Check continuity Replace Failed Fuse does not of thermostat Continuity thermostat. thermostat. blow. (cavity and magnetron). Replace Failed power Check continuity Continuity Continuity power cord. cord. of power cord. 16026795 ©2006 Maytag Services...

  • Page 14

    Repair Loose connection. connection. Continuity Normal Check fan Failed fan Replace fan Abnormal motor. motor. motor. Fan motor or oven light does not operate. Failed oven Replace oven Check oven Abnormal light. light. light. Normal 16026795 ©2006 Maytag Services...

  • Page 15

    Failed Replace Measure the Abnormal magnetron magnetron. output power. NOTE: Simple test of power output can be conducted by heating one liter of water for one minute. See Power Test on page 24 of this manual. 16026795 ©2006 Maytag Services...

  • Page 16: Troubleshooting Procedures

    Normal Abnormal Failed Replace Check magnetron. magnetron. magnetron. Disconnect wire Operates at Replace Failed Abnormal full power leads from relay controller. controller. when RY2 and verify programmed continuity of the for lower relay. power. 16026795 ©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 16026795 ©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. 16026795 ©2006 Maytag Services...

  • Page 19: Radiation Monitors

    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. 16026795 ©2006 Maytag Services...

  • Page 20: Testing Procedures

    Filament ..........Less than <1 Secondary to Ground screw on transformer stack ......... Approximately 70 – 80 Lamp receptacle Test continuity of receptacle terminals. Indicates continuity with bulb installed. Wire Harness Test continuity of wires Indicates continuity 16026795 ©2006 Maytag Services...

  • Page 21

    1 & 10 Continuity DEFROST (20%) 2 & 10 Continuity MEDIUM (50%) 3 & 10 Continuity MED-HI (70%) 4 & 10 Continuity TIME ENTRY 5 & 10 Continuity STOP/RESET 6 & 10 Continuity START 7 & 10 Continuity 16026795 ©2006 Maytag Services...

  • Page 22

    Standby ..... Volts Relay 5 – Pin 1 to Pin 2......208/230 VAC Ready....Volts Relay 5 – Pin 1 to Pin 2......208/230 VAC Cook....Volts Relay 5 – Pin 1 to Pin 2......0 VAC 16026795 ©2006 Maytag Services...

  • Page 23

    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 16026795 ©2006 Maytag Services...

  • Page 24: Disassembly Procedures

    Use a small blade screwdriver to depress locking-tab and removal. These components must be replaced for pull on terminal. proper circulation of air over the components and DO NOT PULL ON WIRE. through the oven cavity. 1 Release Wire locking-tab 2 Pull 16026795 ©2006 Maytag Services...

  • Page 25: Door Assembly

    Gently pry upward on choke cover to release adjusted for any reason. tabs. Work in clockwise direction to remove choke cover. 16026795 ©2006 Maytag Services...

  • Page 26: Control Panel

    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. 16026795 ©2006 Maytag Services...

  • Page 27: High Voltage Capacitor

    8. Remove screw securing bottom portion of capacitor strap to the duct assembly. 9. Slide capacitor out of capacitor strap and remove capacitor. 10. Replace capacitor and reverse procedure to reassemble. 16026795 ©2006 Maytag Services...

  • Page 28: Diode/circuit Protector

    Fuse / Fuse Block / Filter Assembly A microwave leakage test must be performed anytime 1. Disconnect power to oven and remove outer case, a magnetron assembly is removed, replaced, (see "Outer Case" section). disassembled, or adjusted for any reason. 16026795 ©2006 Maytag Services...

  • Page 29: Blower Motor

    1. Unplug oven and place unit on its back panel. 2. Removing screw securing bottom access panel. 3. Disconnect wire terminals from stirrer motor. 4. Remove screws securing stirrer motor to chassis. 5. Replace component and reverse procedure to reassemble. Splatter shield 16026795 ©2006 Maytag Services...

  • Page 30: Magnetron Thermal Cut-out (tco)

    NOTE: Detergents, soap, and water are not sufficient to remove oil and grease. 5. Clean cavity with mild detergent to remove any remaining degreasing solvent and place new tray into unit. 16026795 ©2006 Maytag Services...

  • Page 31

    Appendix A 16026795 A–1 ©2006 Maytag Services...

  • Page 32: Quick Start Reference Guide

    If necessary, the user can ask the public power supply company for the system impedance at the interface point. A–2 16026795 ©2006 Maytag Services...

  • Page 33

    Display message for 24 hours every 30 days. OP:03 Display message for 24 hours every 90 days. or full product documentation visit: © 2004 Amana Appliances Part No.12804405 Amana, Iowa 52204 Revised 10/04 ™ www.amanacommercial.com/wavelink 16026795 A–3 ©2006 Maytag Services...

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