Ignitor Switch Test; Indicator Light Switch Test; Transformer Check - Monogram ZGU384L Technical Service Manual

Indicator Light Switch Test

1. Disconnect power to the cooktop.
2. Disconnect the indicator light wire harness.
3. Turn on each burner separately and check
for 0 resistance on the light wire harness.
Burner Location
Center
Left Rear
Left Front
Right Rear
Right Front
Light Wire Harness
Gray Orange
Blue
Green
White
Note:
• If a single light does not work, replace the
indicator light harness (part # WB18T10382
for model # ZGU384 or part # WB18T10381 for
model # ZGU385.)
• If all lights are inoperative, and the transformer
and indicator light switches test OK, replace the
indicator light harness.
Wire Colors
Red to Gray
Red to Orange
Red to Yellow
Red to Brown
Red to Blue
Yellow
Brown
Red

Ignitor Switch Test

1. Disconnect power to the cooktop.
2. Turn on each burner separately and check
for 0 resistance between the red wire on
the transformer wire harness and the
corresponding SW terminal on the spark
module wire harness.
Burner Location
Center
Left Rear
Left Front
Right Rear
Right Front
Note:
• If a single ignitor does not work, the switch tests
OK, and the ignitor appears good, replace the
spark module (part # WB18T10382 for model
# ZGU384 or part # WB18T10381 for model #
ZGU385.)
• If all the ignitors do not work, and the
transformer and switches test OK, replace the
spark module.
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Wire Colors
Transformer Red to
Module SW5/Gray
Transformer Red to
Module SW3/Orange
Transformer Red to
Module SW2/Yellow
Transformer Red to
Module SW4/Brown
Transformer Red to
Module SW1/Blue