GE JS998 Series User Manual

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Lower Convection Fan Does Not Work
No
Yes
No
Enter the service mode and
turn the convection fan on.
Is the convection fan on?
Is 120 VAC present from the
LORB relay K122 NO or NC
contact to AC IN (NT)?
Is 120 VAC present from the
LORB relay K122 COM
contact to AC IN (NT)?
No
Yes
Is 120 VAC present from
the LORB relay K18 NO
contact to AC IN (NT)?
No
Is 120 VAC present from
the LORB relay K18 COM
contact to AC IN (NT)?
No
Is 120 VAC present from
the EMI filter board OUT1
contact to AC IN (NT)?
No
Is 120 VAC present from
the EMI filter board IN1
contact to AC IN (NT)?
Yes Yes Yes
Yes
No
Replace
the LORB.
Replace the
convection fan.
Replace the plunger switch
or repair the faulty wiring to the
EMI filter board OUT 2 contact.
Repair the faulty wiring from the L1
input to the EMI filter board IN1 contact.
Is 120 VAC present from the
from the LORB relay K122
NO or NC contact to contacts
of the convection fan?
Yes
No
Is 0 or 12 VDC present from the MLB
connectors J4, pin 12 to J5, pin 2?
Yes
Is 0 or 12 VDC present from the LORB
connectors J9, pin 12 to J5, pin 2?
No
Yes
No
Replace the MLB.
Repair the faulty wiring from
the MLB to the LORB.
Repair the faulty wiring from LORB
relay K18 NO to K122 COM contacts.
Is 0 VDC present from the LORB
connectors J9, pin 11 to J5, pin 2?
No
Yes
Replace the MLB. Replace the LORB.
Repair the faulty wiring from LORB relay K18
COM to EMI filter board OUT1 contacts.
Replace the EMI filter board.
Is 120 VAC present from the
LORB relay K122 NO or NC
contact to the EMI filter
board IN2 contact?
No
Repair the faulty wiring from NT input
to the EMI filter board IN2 contact.
Yes
Is 120 VAC present from the
LORB relay K122 NO or NC
contact to the EMI filter
board OUT2 contact?
No
Replace the
EMI filter board.
Yes

GE JS998 Series Specifications

General

Brand	GE
Model	JS998 Series
Category	Oven
Language	English