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ACM0720AB
Maytag ACM0720AB User Manual
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©2005 Maytag Services
21
16026268
T
roubleshooting Procedures
T
rouble 5:
No microwave oscillation even when oven light and fan motor operate.
No microwave
oscillat
ion.
Disconnect
wire
leads from rel
ay
RY2 a
nd verif
y
continuit
y of
the
rela
y.
No
Continuit
y
Failed
print
ed circuit
board.
Replace
print
ed circuit
board.
Continuit
y
Check
high v
oltage
tran
sformer.
Abnorm
al
Normal
Failed
high v
oltage
tran
sformer.
Replace
high v
oltage
tran
sformer.
Check
high v
oltage
capacit
or.
Abnorm
al
Normal
Failed
high v
oltage
cap
a
ci
to
r
.
Replace
high v
oltage
capacit
or.
Check
high v
oltage
diode.
Abnorm
al
Normal
Failed
high v
oltage
diode.
Replace
high v
oltage
diode.
Abnorm
al
Failed
print
ed circuit
board.
Replace
print
ed circuit
board.
Check
magnet
ron.
Abnorm
al
Failed
magnet
ron.
Replace
magnet
ron.
Disconnect
wire
leads from rel
ay
RY2 a
nd verif
y
continuit
y of
the
rela
y.
Operates
at
full power
when
program
med
for lower power.
20
22
Table of Contents
Important Information
2
Table of Contents
3
Important Product Information
4
Important Safety Information
5
Microwave Leakage Testing
6
Specification Information
7
General Information
9
Placement of the Oven
9
Location of Model Number
9
Model Identification
9
Service
9
Parts and Accessories
9
Extended Service Plan
9
Radio Interference
9
Electrical Requirements
10
Cleaning
10
Grounding Instructions
10
Microwave Oven Description
11
Testing Procedures
12
Primary Interlock Switch Test
12
Secondary Interlock Switch Test
12
Interlock Monitor Switch Test
12
Magnetron
12
High Voltage Diode
13
High Voltage Transformer
13
Fan Motor
13
Turntable Motor
13
High Voltage Capacitor
13
Humidity Sensor
13
Relay
14
Oven Thermostat
14
Fuse
14
Control Key Panel
15
Troubleshooting Procedures
16
Disassembly Procedures
22
Door Assembly
22
Door Disassembly
22
Outer Case
23
Control Panel
23
P.C. Board
23
Control Key Panel
24
Interlock Door Latch Switches
24
High Voltage Capacitor
25
Diode
25
Transformer
26
Fuse
26
Magnetron
26
Suction Guide / Fan Motor Assembly
26
Humidity Sensor-ACM1460A* and ACM2160A
27
Oven Thermostat
27
Light Socket
27
Turntable Motor
27
Noise Filter
27
Wiring Diagrams and Schematics
28
Appendix A
35
Installation Instructions
36
Appendix B
37
Programming Instructions for ACM0720A* and ACM1061A
38
Easy Cook
38
Time Cook
38
Programming Instructions for ACM1120A* and ACM1420A
40
Programming Instructions for ACM1460A* and ACM2160A
43
Programming Instructions for ACM0860A* and MMC5086A
46
Appendix C
49
Appendix C Cleaning Instructions
50
4
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Maytag ACM0720AB Specifications
General
Brand
Maytag
Model
ACM0720AB
Category
Microwave Oven
Language
English
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