Amana RC519M Service Manual page 18

Component Testing Procedures
To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires it.
Illustration
C8901508 Auto transformer
220
240
COM
10788609 Transformer
6
5
4
COM
COM
230
220
R0150102 Antenna motor
R0150155 Interlock switch
Type 1
12360503 Interlock switch
assembly
Type 2
2
5
7
7
8
2
4
3
5
RS5320014 Rev. 0
!
Component
Discharge Capacitor
240
Remove all wires from terminals, and
measure resistance from:
220 to 0
220
240 to 0
220 to 240
120
240 to earth
220 to earth
COM
0 to earth
Discharge Capacitor
Remove all wires from terminals, and
measure resistance from:
5
220 to Common
230 to Common
TCO 6
Terminal 5 to 6
Terminal 4 to Earth screw on transformer
220
Terminal 4 to any other terminal
230
4
Remove all wires from motor.
Measure resistance across terminals.
Disconnect wires to switch
Doo r O pe n
With door open measure resistance from:
Terminal 2 to terminal 3
D um my
1 1
Terminal 4 to terminal 5
2 2
Se condary Terminal 7 to terminal 8
3 3
4 4
Lo gic/Primary
With door closed measure resistance from:
5 5
Terminal 2 to terminal 3
6 6
7 7
Terminal 4 to terminal 5
M onito r
8 8
Terminal 7 to terminal 8
9 9
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3
Door closed Terminal 4 to 5
3
Terminal 7 to 8
4
With door closed measure resistance from:
Terminal 2 to 3
8
Terminal 4 to 5
Terminal 7 to 8
WARNING
Testing
Secondary
Primary
Monitor
Secondary
Primary
Monitor
18
Results
Approximately 55 ohms.
Approximately 55 ohms.
Approximately 1.5 ohms.
Infinite
Infinite
Infinite.
This transformer is equipped with a
155°C thermal cutout
Approximately 1.3 Ω
Approximately 1.3 Ω
<1 Ω
70 Ω
Infinite resistance should be
indicated, if not replace transformer.
Approximately 10 KΩ
Infinite Ω
Infinite Ω
Indicates continuity
Indicates continuity
Indicates continuity
Infinite Ω
Infinite
Infinite
Indicates continuity
Indicates continuity
Indicates continuity
Infinite