GE JB905, Technical Service Manual, Page: 38 / 63

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Oven Switch
Yes
No
y Is the circuit breaker open or fuse blown?
Reset the circuit
breaker or replace the
fuse.
Unplug the oven.
y Is there continuity between the convection
fan motor (S-1) and the lock motor (S-2)?
Yes
The oven
switch
does not
work.
No
Repair faulty wiring
y Is there continuity between the lock motor
(S-3) and the oven switch (S-3)?
No
Repair faulty wiring
y Is continuity present between the oven
switch (C-3) and the oven light (C-2)?
y Is continuity present between the oven
switch (C-3) and the ERC (LIGHT) terminal
(C-1)?
Yes
No
Replace the oven
switch.
Repair faulty wiring.
Yes
Note: If the problem
persists, troubleshoot
the lock motor.
Yes
y Is continuity present between the oven
switch (W-3) and the 220 volt input
terminal (W-1)?
y Is continuity present between the oven
switch (W-3) and terminal (N) on the ERC?
No
Repair faulty wiring.