GE JS998 Series User Manual

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Vent Fan Does Not Work
Enter the service mode and turn the vent fan on.
Does the vent fan come on?
No
Disconnect the connector on the vent fan.
Is 120 VAC present from the MPB relay K106 NO
contact to AC IN (NT)?
Yes
No
Is 120 VAC present from the MPB
relay K106 NO contact to the EMI
filter board IN2 contact?
Yes
Is 120 VAC present from the MPB
relay K106 NO contact to the EMI
filter board OUT2 contact?
Yes
Is 120 VAC present from the MPB relay
K106 NO contact to the vent fan?
Yes
Is 120 VAC present from the positive contact
to the negative contact of the vent fan?
Yes
Replace the
vent fan.
Is 120 VAC present from
the MPB relay K106 COM
contact to AC IN (NT)?
Yes
Is 0 VDC present from the
MLB connectors J3, pin 3 to
J5, pin 2?
Yes
No
Is 120 VAC present from
the EMI filter board OUT3
contact to AC IN (NT)?
No
Is 120 VAC present from
the EMI filter board IN3
contact to AC IN (NT)?
No
Replace the one-shot
TCO or repair the faulty
wiring from L2 input to
the EMI filter board.
Repair the faulty wiring
from NT input to the EMI
filter board.
No
No
Replace the EMI
filter board.
Repair the faulty wiring
from the EMI filter board
to the vent fan.
No
Repair the faulty wiring
from the MLB relay
K106 NO contact to
the vent fan.
No
No
Replace
the MLB.
Replace
the MPB.
Repair the faulty wiring from
the MPB relay K106 COM
contact to the EMI filter board.
Yes
Replace the EMI
filter board.
Yes

GE JS998 Series Specifications

General

Brand	GE
Model	JS998 Series
Category	Oven
Language	English