Maytag UMC1071AAB/W Service Manual
Download Service manual of Maytag AMC4080AAB/W/Q/S Microwave Oven for Free or View it Online on All-Guides.com. This version of Maytag AMC4080AAB/W/Q/S Manual compatible with such list of devices, as: AMC5101AAB/W/Q/S, AMC5143AAB/W/Q/S, MMC5080AAB/W/Q/S, MMC5193AAB/W/Q/S, UMC1071AAB/W
Brand: Maytag
Category: Microwave Oven
Type: Service manual
Model: Maytag AMC4080AAB/W/Q/S , Maytag AMC5101AAB/W/Q/S , Maytag AMC5143AAB/W/Q/S , Maytag MMC5080AAB/W/Q/S , Maytag MMC5193AAB/W/Q/S , Maytag UMC1071AAB/W
Pages: 53
Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge the high voltage
capacitor before servicing, unless testing requires power.
©2004 Maytag Services 16022923 Rev. 0 15
Illustration Component Test Procedure Results
Thermal cutout
Model AMC4080AA*,
MMC5080AA*,
MMC5193AA*
Disconnect all wires from TCO.
Measure resistance across terminals.
Magnetron TCO .......................................
Open at 194°F (90°C) and closed at
140°F (60°C)
Thermal cutout
Model AMC5101AA*:
Disconnect all wires from TCO.
Measure resistance across terminals.
Magnetron TCO .......................................
Open at 185°F (85°C) and closed at
167°F (75°C)
Thermal cutout
Model AMC5143AA*:
Disconnect all wires from TCO.
Measure resistance across terminals.
Magnetron TCO .......................................
Open at 302°F (150°C) and closed at
140°F (60°C)
Thermal cutout
Model AMC5143AA*
Disconnect all wires from TCO.
Measure resistance across terminals.
Cavity TCO ..............................................
Open at 212°F (100°C) and closed at
32°F (0°C)
Lamp receptacle Test continuity of receptacle terminals. Indicates continuity if bulb is good and
screwed in.
Fan motor
Models AMC4080AA*,
MMC5080AA*,
AMC5101AA*
Remove all wires from motor.
Measure resistance across coil.................
Approximately 48 Ω (77°F, 25°C)
Less than 44 Ω or more than 54 Ω
(70°F, 20°C), motor is defective.
Fan motor
Models AMC5143AA*,
MMC5193AA*
Remove all wires from motor.
Measure resistance across coil.................
Approximately 46 Ω (70°F, 20°C)
Less than 42Ω or more than 50Ω
(70°F, 20°C), motor is defective.
Auto Cook Test
(Sensor Only)
Models AMC5143AA*
and MMC5193AA*
Place 1/3 cup water in oven, then press
POPCORN.
After 1-2 minutes, unit beeps and
display counts down.
Press CLEAR/OFF. If test fails,
continue with Sensor Test.
Sensor Test
Models AMC5143AA*
and MMC5193AA*
Press SENSOR REHEAT and AUTO
DEFROST at the same time.
Numbers displayed at Touch Pad:
15-185 is normal.
185 or higher, sensor open.
15 or lower, sensor shorted.
Turntable Drive Motor Measure across terminals Voltage: Approximately 20 VAC
Resistance: Approximately 165 Ω
Refer to Parts Manual
for proper power cord
part number.
Power cord Measure resistance of wires. Continuity should be indicated on each
wire.
Verify polarity and grounding.