Download  Print this page

High Voltage Capacitor; High Voltage Diode; Humidity Sensor; Relay - Maytag ACO1520AB Service Manual

Over the range 2001 and 2002 domestic microwave ovens.
Hide thumbs

Advertisement

Testing Procedures
!
WARNING
4. Measure resistance of the terminals on the high
voltage transformer with meter on R x 1 scale.
Reading should be indicated as follows:
Primary winding ......less than 1.0 ohms
Filament winding ....less than 1.0 ohms
Secondary winding . approximately 50 to 120 ohms
5. Measure resistance of the terminals on the high
voltage transformer with meter on high scale.
Reading should be indicated as follows:
Primary winding to ground ....... Infinite ohms
Filament winding to ground ..... Infinite ohms

High Voltage Capacitor

1. Disconnect power to oven and remove control panel,
(see "Control Panel" section in Disassembly
Procedure).
2. Discharge high voltage capacitor, (see "High Voltage
Capacitor" section in Disassembly Procedure).
3. Disconnect wire leads to high voltage capacitor.
4. Measure resistance of capacitor from terminal to
terminal.
• Normal reading—momentarily indicates several
ohms and then gradually returns to infinite ohms.
• Abnormal reading—Indicates continuity or infinite
ohms.
5. Measure resistance of capacitor from terminal to
case.
• Normal reading—Indicates infinite ohms
• Abnormal reading—Indicates continuity

High Voltage Diode

1. Disconnect power to oven and remove control panel,
(see "Control Panel" section in Disassembly
Procedure).
2. Discharge high voltage capacitor, (see "High Voltage
Capacitor" section in Disassembly Procedure).
3. Disconnect wire leads to high voltage diode.
4. Measure resistance of diode in forward bias.
• Normal reading—Indicates continuity
• Abnormal reading—Indicates infinite ohms
5. Measure resistance of diode in reverse bias.
• Normal reading—Indicates infinite ohms
• Abnormal reading—Indicates continuity

Humidity Sensor

1. Disconnect power to oven and remove control panel,
(see "Control Panel" section in Disassembly
Procedure).
2. Discharge high voltage capacitor, (see "High Voltage
Capacitor" section in Disassembly Procedure).
3. Disconnect wire terminal plug from control board
(CN5).
16021668 Rev. 0
Disconnect power before performing the following
procedures unless testing requires it.
4. Measure the following terminals with meter on
R x 1000 scale.
Normal indication:
Terminal 1 to terminal 2 ......... 4.5K to 6.2K ohms
Terminal 2 to terminal 3 ........ 2.0K to 3.5K ohms
Terminal 1 to terminal 3 ........ 2.0K to 3.5K ohms
Abnormal indication:
Infinite or several ohms

Relay

1. Disconnect power to oven and remove control panel,
(see "Control Panel" section in Disassembly
Procedure).
2. Discharge high voltage capacitor, (see "High Voltage
Capacitor" section in Disassembly Procedure).
3. Disconnect wire terminal plug from control board
(ACO18*, RY2) (ACO15*, RY7), and operate the
unit.
Power Level
Cycles On for:
1
4 seconds
2
6 seconds
3
8 seconds
4
10 seconds
5
12 seconds
6
14 seconds
7
16 seconds
8
18 seconds
9
20 seconds
10
22 seconds

Control Key Panel

1. Disconnect power to oven and remove control panel,
(see "Control Panel" section in Disassembly
Procedure).
2. Discharge high voltage capacitor, (see "High Voltage
Capacitor" section in Disassembly Procedure).
10
Rela
y 2
Cycles Off for:
18 seconds
16 seconds
14 seconds
12 seconds
10 seconds
8 seconds
6 seconds
4 seconds
2 seconds
0 seconds
©2002 Maytag Appliances Company

Advertisement

Table of Contents

   Related Manuals for Maytag ACO1520AB

Comments to this Manuals

Symbols: 0
Latest comments: