MENUMASTER COMMERCIAL MICROWAVE R OVEN 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 manual replaces RS5320015 Revision 0.
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.
Table of Contents Important Information ................................................ 2 Important Product Information .................................... 4 Important Safety Information ...................................... 5 General Information Placement of the Oven ........................................... 9 Radio Interference.................................................. 9 Earthing Instructions ............................................... 9 Electrical Power Cord .............................
Important Product Information ! ! WARNING Precautions to be observed before and during servicing to avoid possible exposure to excessive microwave energy, or electrical shock disconnect power to oven. WARNING To avoid risk of electrical shock, injury, or death, make sure these earthing instructions are followed. Earthing Instructions (A) Do not operate or allow oven to be operated with door open.
Important Safety Information ©2002 Maytag Appliances Company 16021518 Rev.
Important Safety Information 6 16021518 Rev.
Important Safety Information ©2002 Maytag Appliances Company 16021518 Rev.
Important Safety Information ! CAUTION Read the following information to avoid possible exposure to microwave radiation: The basic design of the Amana or Menumaster microwave ovens make it an inherently safe device to both user and servicer. However, there are some precautions which should be followed when servicing the microwave oven to maintain this safety. These are as follows: 1. Always operate the unit from an adequately earthed outlet. Do not operate on a two-wire extension cord. 2.
General Information Placement of the Oven Do not install microwave next to or above source of heat, such as a deep fat fryer. This could cause the microwave to operate improperly and could shorten the life of electrical components. Install microwave on a level countertop surface. Do not block or obstruct oven filter. Allow access for cleaning. All air vents must be kept clear during cooking. If air vents are covered during operation the oven may overheat.
General Information Electrical Power Cord Plug Receptacle Plug Receptacle 230 V / 13 AMP Equipment requires a 230 VAC, 50 Hz, 13 amp power supply Equipment requires a 230 VAC, 50 Hz, 16 amp power supply Do not use a extension cord. If the product power cord is too short, have a qualified electrician install a three-prong receptacle. This unit should be plug into a separate 230 VAC / 50 Hz power supply.
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 Thermal cutout Test Disconnect all wires from TCO. Measure resistance across terminals. Magnetron TCO .......................................... Cavity TCO .................................................
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 Interlock switch assembly Test Disconnect wires to switch. 2 3 7 5 4 8 7 8 2 3 5 4 Fault Codes HV / LV board 1 P3 10 10 P1 P2 Pin #1 A B C J 1 P1 F Pin #1 K P2 With door open measure resistance from: Terminal 2 to 3 Secondary .................
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. ! WARNING To insure proper functioning of the interlock system if the 12 Amp. line fuse has opened, the switch assembly must be replaced along with the fuse. For continued protection against radiation hazard, replace only with identical replacement components.
Service Information ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. Proper Handling of Magnetron Tubes ! CAUTION A magnetron tube, like a radio or television tube must be handled with a reasonable amount of care. When handling a tube, always handle by the housing only. Use caution not to touch or strike the ceramic portion at the top.
Service Information ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. ! Measurement with the Outer Panel Removed WARNING Check for radiation leakage after servicing. Should the leakage be more than 4 mW/cm2 inform Maytag immediately. After repairing or replacing any radiation safety device, keep a written record for future reference, as required by D.H.H.S. and HEW regulations.
Troubleshooting ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. Operating Instructions for the Narda 8110B Radiation Monitor Purpose of the monitor is to check radiation leakage around the microwave oven door and other places where radiation could possibly occur. Radiation Monitor This instrument measures radiation leakage in milliwatts per square centimeters (mW/cm2).
Troubleshooting ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires it. Operating Instructions for the Holaday HI1501, HI1510, and HI1710 Purpose of these monitors is to check radiation leakage around microwave oven door or other places where radiation could possibly occur. Instrument measures radiation leakage in milliwatts per square centimeters (mW/cm2).
Troubleshooting Guide ! CAUTION All repairs as described in this section are to be performed only after the listed caution procedures listed below have been followed. • • • • Check grounding before checking for trouble. Be careful of the high voltage circuit. Discharge high voltage capacitor by shorting across terminals with screwdriver.
Troubleshooting Guide 4. Condition Oven light, timer, and blower motor operate. Oven does not cook. No voltage at power transformer primary leads (230V). See NOTE. Caution: All other transformer leads are high voltage. 5. Same condition as # 4, but voltage is available at power transformer primary (230 VAC). See NOTE. 6. All oven components operate; unit cooks slowly, all modes. 7. Oven cooks food unevenly. • • • • Possible Causes Failed wiring and/or terminal. Failed HV /LV board. Failed triac.
Disassembly Procedures ! To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. WARNING Access to major electrical components can only be gained by removal of outer case assembly. Outer Case Removal 1. To remove outer case. 2. Remove screws (tamper resistant–use driver R0193551) located on each side of outer case and screws in back of oven. 3. Pull back on outer case and lift off. 4.
Disassembly Procedures ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Splatter Shield Removal NOTE: Be careful not to bend antenna when removing splatter shield. Shield snaps into a lip in front of the oven and three slots in back. 1. Place your thumbs in the two indentations in front of the shield. 2. Press lightly towards the back and carefully lower shield away from antenna. 3.
Disassembly Procedures ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. New Door Assembly (unit with P13278* manufacturing number) 1. Remove plugs from set screws on the door handle. 2. Loosen the set screws on the door handle and remove door handle. Door hinge Tighten side set screw first.
Disassembly Procedures ! WARNING Removal of Power Transformer, Capacitor and Diode (Rectifier) 1. Disconnect power to oven. ! CAUTION Failure to comply with earthing instructions may result in personal injury due to electrical shock. 2. Remove outer case. Earth magnetron terminals to capacitor housing with an insulated-handle screwdriver by touching metal shaft first to the capacitor housing then to the capacitor terminals.
Disassembly Procedures ! WARNING Magnetron Tube Thermal Cut-Out Replacement To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Oven Tray Replacement 1. Disconnect power to oven. 2. Remove outer case, see “Outer Case Removal” procedure. 3. Remove screws securing thermal cut-out to magnetron.
Disassembly Procedures ! WARNING Removal of Line Filter To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitors before following any disassembly procedure. Fuse Block ! WARNING This unit must be unplugged to avoid electrical shock, personal injury or death when working on the microwave oven except when taking meter readings requiring live voltage. 1. Disconnect power to unit. 2. Remove outer case, see “Outer Case Removal” procedure. 3.
Appendix A ©2002 Maytag Appliances Company A–1 16021518 Rev.
Owner's Manual Heavy Duty International Commercial 1100W Microwave Oven Keep these instructions for future reference. If the oven changes ownership, this manual must accompany oven. Contents Model Identification .................................................... 2 IMPORTANT SAFETY INSTRUCTIONS .................... 3 PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY .................. 4 Installation ..................................................................
IMPORTANT SAFETY INSTRUCTIONS Recognize this symbol as a SAFETY message ! WARNING When using electrical oven, basic safety precautions should be followed to reduce risk of burns, electric shock, fire, or injury to persons or exposure to excessive microwave energy. 8. DO NOT operate this oven if it has a damaged cord or plug, if it is not working properly, or if it has been damaged or dropped. 1. READ all instructions before using oven. 2.
IMPORTANT SAFETY INSTRUCTIONS ! CAUTION To avoid risk of personal injury or property damage, observe the following: 8. Feeding bottles and baby food jars shall be open when heated and contents stirred or shaken before consumption, in order to avoid burns. 1. Briskly stir or pour liquids before cooking with microwave energy to prevent spontaneous boiling or eruption. Do not overheat. If air is not mixed into a liquid, liquid can erupt in oven or after removal from oven. 9.
MESURES DE SECURITE IMPORTANTES Ce symbole signale un message de SECURITE ! DANGER Lors de l’utilisation d’appareils électriques, prendre les précautions élémentaires suivantes pour réduire les risques de brûlures, d’électrocution, d’incendie, de blessures ou d’exposition a un exces de micro-ondes. 8. NE PAS utiliser le four si la prise ou le cordon électrique est abîmé, si le four ne fonctionne pas correctement ou si l’appareil est tombé ou a été endommagé. 9.
MESURES DE SECURITE IMPORTANTES ! ATTENTION Pour éviter tous dégâts matériels ou blessures, observer les consignes suivantes : 1. Pour éviter toute ébullition ou éruption spontanée, remuer vigoureusement ou verser les liquides avant de les chauffer au four à micro-ondes. Ne pas trop chauffer. Si de l’air n’a pas été incorporé dans le liquide, celui-ci peut déborder dans le four ou après en avoir été retiré. 2. Ne pas faire de friture dans le four.
Installation Unpacking Oven • • • • Inspect oven for damage such as dents in door or inside oven cavity. Report any dents or breakage to source of purchase immediately. Do not attempt to use oven if damaged. Remove all materials from oven interior. If oven has been stored in extremely cold area, wait a few hours before connecting power. Radio Interference Microwave operation may cause interference to radio, television, or a similar oven.
Display and Features Cooking Display DISPLAYS DESCRIPTION READY READY displays when oven control will accept entries. 00:00 Displays cooking time. If stage cooking is programmed, total cooking time is displayed. DEFR MED MED HI These settings display the current power level used for the microwave. If no display is shown, microwave is running at full power (100%). POWER POWER is displayed while the oven is generating microwave energy during a cooking cycle.
Using the Oven Control (Electronic Control) STOP Interrupting Operation Open oven door or press STOP pad to interrupt operation. Display continues to show countdown time. Close door and press START pad to resume oven operation. STOP Canceling Mistakes If oven is not cooking, press STOP pad to clear display. If oven is cooking, press STOP pad once to stop oven, then again to clear display. If oven door is open and time shows in display, close oven door and press STOP pad to clear display.
Programming the Oven Control (Electronic Control) Programming Pads Oven is shipped from the factory for single pad programming. To change the oven default to allow double pad programming, see User Option section. To change the amount of time or the power level for a preset pad: 1. Open oven door. • READY displays. • If door is closed or STOP pad is pressed before programming is complete, changes are discarded and microwave exits programming mode. 2. Press and hold pad 1 for approximately 5 seconds.
User Options (Electronic Control) Didn’t like an option? Changing user options Factory settings are marked in bold. To change the oven back to the factory setting, simply select the option that is marked in bold. Options such as single or double pad programming, beep volume, and maximum cooking time can be changed to suit individual preferences. My changes weren’t saved. In order for any changes to be saved, the START pad must be pressed after selecting an option.
Care and Cleaning Replacing Oven Light 1. Disconnect electrical supply. 2. Remove screw from back of oven. 3. While wearing protective gloves, turn light bulb counterclockwise to remove. 4. Replace light bulb with 230-volt, 25-watt appliance bulb. Do not over-tighten bulb. Over-tightening may make bulb difficult to remove later. 5. Replace light bulb cover before use. 6. Reconnect power supply.
Before Calling for Service ! WARNING To avoid electrical shock which can cause severe personal injury or death, do not remove outer case at any time. Only an authorized servicer should remove outer case. Record all inspections and repair for future reference. Symptom Check If oven does not operate: • Check fuse or circuit breaker. • Confirm oven is plugged into dedicated circuit. • Confirm oven is on grounded and polarized circuit. Contact electrician to confirm.
