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 it.
RS2220001 Rev. 2 18
Illustration Component Test Results
4
COM
230
208
6
5
(Hi)
(Lo)
Transformer
5
6
4
(Lo)
(Hi)
Com
208 V
230 V
3
Discharge Capacitors
Remove all wires from terminals.
Measure resistance from:
Terminal 230 (HI) to Com
Terminal 208 (LO) to Com
Terminal 5 to 6
Terminal 4 to Ground screw on transformer
Terminal 4 to any other terminal
1
Ω
1
Ω
<1
Ω
65
−
80
Ω
Infinite resistance should be indicated,
if not replace transformer.
208
230
0
Auto Transformer
0
208
230
Discharge Capacitors
Remove all wires from terminals.
Measure resistance from:
230 to 0
208 to 0
44
Ω
43
Ω
Interlock switch
Type 1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Secondary
Logic/Primary
Monitor
Dummy
Door Open
Disconnect wires to switch
With door open measure resistance from:
Terminal 2 to terminal 3
Terminal 4 to terminal 5
Terminal 7 to terminal 8
With door closed measure resistance from:
Terminal 2 to terminal 3
Terminal 4 to terminal 5
Terminal 7 to terminal 8
Infinite
Ω
Infinite
Ω
Indicates continuity
Indicates continuity
Indicates continuity
Infinite
Ω
For larger illustration
see page 33 in
Disassembly
Procedures
Interlock switch
Type 2
Disconnect wires to switch
With door open measure resistance from:
COM to N.O.Secondary
COM to N.O.Primary
COM to N.C.Monitor
With door closed measure resistance from:
COM to N.O.Secondary
COM to N.O.Primary
COM to N.C.Monitor
Infinite Ω
Infinite Ω
Indicates continuity
Indicates continuity
Indicates continuity
Infinite Ω
7
8
2
4
3
5
Interlock switch
Type 3
Door closed
2
5
7
3
4
8
Disconnect wires to switch.
With door open measure resistance from:
Terminal 2 to 3 Secondary
Terminal 4 to 5 Primary
Terminal 7 to 8 Monitor
With door closed measure resistance from:
Terminal 2 to 3 Secondary
Terminal 4 to 5 Primary
Terminal 7 to 8 Monitor
Infinite Ω
Infinite Ω
Indicates continuity
Indicates continuity
Indicates continuity
Infinite Ω
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