Amana Commercial Combination Oven Service Manual Page 27

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25
Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
Illustration Component Test Results
4
COM
230
208
5
6
Transformer
Discharge Capacitor
Remove all wires from terminals.
Measure resistance from:
230 to COM
208 to COM
230 to Ground
208 to Ground
Terminal 5 to 6
Terminal 4 to Ground
< 1.5
< 1.5
Infinite
Infinite
< 1
Approximately 70
7
8
2
4
3
5
Interlock switch
Door Closed
2
4
7
3
5
8
Primary
Secondary
Monitor
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
With door closed measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
Infinite
Infinite
Infinite
Indicates continuity
Indicates continuity
A
B
Convection blower
motor
Remove wires from motor.
Measure resistance across
terminals A and B.
Approximately 20
Heating element
assembly
Disconnect wires from terminals.
Measure resistance across heating
element.
Element 2200 W
Resistance thermal
device (RTD)
Temperature
0° C (32° F) ..................................................
24° C (75° F) ................................................
177° C (350° F) ............................................
Resistance
1000
1091
1654
Approximately 15
With power applied remove white
and black 4 pin connector from J2 connector.
With door closed measure resistance from:
Pin 1 to pin 4 on J2 connector………………....... Infinite
With door open measure resistance from:
Pin 1 to pin 4 on J2 connector………………....... Indicates continuity
Relay board
Indicates continuity
7
8
2
4
3
5
Interlock switch
Door Closed
2
4
7
3
5
8
Primary
Secondary
Monitor
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
With door closed measure resistance from:
Terminal 2 to 3
Terminal 4 to 5
Terminal 7 to 8
Infinite
Infinite
Indicates continuity
Indicates continuity
Current Production
Starting @ S/N 11071263
Indicates continuity
Infinite
Previous Production
Ending @ S/N 11071262
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