High Voltage Transformer; High Voltage Capacitor; High Voltage Diode; Humidity Sensor - Amana P1323201M Service Manual

Testing Procedures
!
WARNING

High Voltage Transformer

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 transformer.
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 ......approximately 0.3 to 0.5 ohms
Filament winding ....less than 0.1 ohms
Secondary winding . approximately 65 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
RS2100008 Rev. 0
Disconnect power before performing the following
procedures unless testing requires it.

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).
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
(RY2), 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
22
y 2
Rela
Cycles Off for:
18 seconds
16 seconds
14 seconds
12 seconds
10 seconds
8 seconds
6 seconds
4 seconds
2 seconds
0 seconds