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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.
Refer to individual Technical Sheet
1800 W - 2005
for information on specific models.
This manual includes, but is
not limited to the following:
Countertop
RFS18MPS P1330209M
Commercial
Microwave
Ovens
16026795
May 2006
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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. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped
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Table of Contents Important Information .................................................... 2 Radiation Monitors Important Safety Information ......................................... 4 Operating Instructions for the Holaday Grounding Instructions ............................................... 7 HI1501, HI1510, HI1710, and HI1801 ........................ 19 Servicing of Grounding Products ................................ 8 Testing Procedures ................................................. 20
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Important Safety Information WARNING ! Read the following information to avoid possible exposure to microwave radiation: The basic design of the Amana Microwave Oven makes it an inherently safe device to both use and service. 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 8. Do not for any reason defeat the interlock grounded outlet. Do not operate on a tw
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Important Safety Information Recognize this symbol as a SAFETY message WARNING ! When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns, electrical shock, fire, or injury to persons. 1. READ all instructions before using equipment. 8. DO NOT operate this equipment if it has a damaged cord or plug, if it is not working 2. READ AND FOLLOW the specific properly, or if it has been damaged or dropped. “PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSI
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Important Safety Information CAUTION ! To avoid risk of personal injury or property damage, observe the following: 1. Briskly stir or pour liquids before heating with 7. Do not use regular cooking thermometers in oven. microwave energy to prevent spontaneous boiling Most cooking thermometers contain mercury and or eruption. Do not overheat. If air is not mixed may cause an electrical arc, malfunction, or into a liquid, liquid can erupt in oven or after damage to oven. removal from oven. 8. Do n
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Important Safety Information Grounding Instructions ! WARNING Precautions to be observed before and during ! WARNING servicing to avoid possible exposure to excessive Do not remove grounding prong when installing microwave energy, or electrical shock disconnect grounded appliance in a home or business that does power to oven. not have three wire grounding receptacle, under no condition is grounding prong to be cut off or removed. � Do not operate or allow oven to be operated with door It is the
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Important Safety Information Servicing of Grounded Products Explanation The standard accepted color coding for grounding wires Polarization–This means that the larger slot must be is GREEN or GREEN WITH YELLOW STRIPE. These neutral and the small slot must be hot (live). ground leads are NOT to be used as current carrying Mispolarized–The outlet is miswired so that the larger slot conductors. It is extremely important that the technician is hot (live) and the smaller slot is neutral. replace an
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General Information Unpacking Equipment Radio Interference • Inspect equipment for damage such as dents in door Microwave operation may cause interference to radio, or dents inside oven cavity. television, or similar equipment. Reduce or eliminate interference by doing the following: � Report any dents or breakage to source of purchase immediately. Do not attempt to use oven if damaged. � Clean door and sealing surfaces of oven according to � Remove all materials from oven interior. instruction
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General Information Model Identification Parts and Accessories � For Amana product call 1-866-426-2621 or visit the Purchase replacement parts and accessories over the Web Site at www.amanacommercial.com phone. To order accessories for your product contact your local product distributor or vist the Web site at When contacting for service support, provide product www.amanacommercial.com. information located on rating plate. Record the following: Model Number: ___________________ Manufacturing Num
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Troubleshooting Procedures When you get a complaint from customers, evaluate the complaint carefully. If the following symptoms apply, instruct the customer in the proper use of the microwave oven. This can eliminate an unnecessary service call. CAUTION ! • Verify proper earthing before checking for trouble. � Be careful of the high voltage circuit. � Discharge the high voltage capacitor. � When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire
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Troubleshooting Procedures Trouble 1: The following visual conditions indicate a probable failed control circuit. 1. Incomplete segments. � Segment missing. � Partial segment missing. � Digit flickering (Note: Slight flickering is normal.) 2. Colon does not turn on or blink. 3. A distinct change in the brightness of one or more numbers in display. 4. One or more digits in the display are not lighting. 5. Display indicates a number different from one touched, for example, key in 5 and 3 appears i
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Troubleshooting Procedures (Electronic Models) Trouble 2: Oven does not operate at all, display window does not display any digits, and no input is accepted. Malfunction Replace the fuse, Check continuity Continuity of the Fuse blows. primary, of monitor switch monitor secondary, monitor with door closed. switch. switches and No controller. Continuity Replace fuse Replace the fuse, Check continuity Continuity Malfunction of primary, of primary switch primary switch. secondary, mo
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Troubleshooting Procedures (Electronic Models) Trouble 3: Display shows all digits programmed, but does not start cooking when the START pad is pressed. Malfunction Check continuity No Time does not Replace the of secondary of secondary Continuity count down secondary switch. switch with door after START switch. closed. pad is pressed. Continuity Failed Replace Check connection Continuity controller. controller. between CN1 connector and controller. Repair Loose No connection.
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Troubleshooting Procedures (Electronic Models) Trouble 4: Oven operates with little or no heat. Output Customer must Lower than Decrease in performance contact local Check the power 90% of rated supply voltage is low. power supply voltage. voltage. under load. company or qualified electrician. Normal Failed Replace Abnormal controller. controller. Disconnect wire leads from relay RY2 and verify on and off times. Normal Failed Replace Measure the Abnormal magnetron magnetron. outp
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Troubleshooting Procedures (Electronic Models) Trouble 5: No microwave oscillation even when oven light and fan motor operate. Disconnect wire Replace No Failed No microwave leads from relay controller. Continuity controller. oscillation. RY2 and verify continuity of the relay. Continuity Check high Abnormal Replace high Failed high voltage voltage voltage transformer. transformer. transformer. Normal Failed high Check high Replace high Abnormal voltage voltage capacitor. voltag
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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 power. Proper Handling of Magnetron Tubes 2. Open Heater (Filament) - Can be determined by a ohmmeter when transformer leads are disconnected. Resistance is normally less than one CAUTION ! ohm; filament does not short internally. Any tube A magnetron tube, like a radio or television tube removed
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Microwave Leakage Testing ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Measurement with the Outer Panel WARNING ! Removed Check for radiation leakage after servicing. Should the 2 leakage be more than 4 mW/cm inform Maytag WARNING ! immediately. After repairing or replacing any radiation Avoid contacting any high voltage components. safety device, keep
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Radiation Monitors ! WARNING To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor before servicing, unless testing requires power. Hold probe perpendicular to cabinet door. Place cone Operating Instructions for the Holaday of probe on the door and/or cabinet door seam and HI1501, HI1510, HI1710, and HI1801 move along the seam. If leakage of the oven is Purpose of these monitors is to check radiation unknown, move probe sl
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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 power. Illustration Component Testing Results Thermal cutout Disconnect all wires from TCO. Measure resistance across terminals. Cavity TCO............................................ Closed at 32°F (0°C) and Opens at 230°F (110°C) Magnetron TCO..................................... Closed
