Diagnosing Cooking Problems; Food Items Appear To Be Undercooked; Food Items Appear To Be Overcooked Or Burned - GE SCB2000 Technical Service Manual

Diagnosing Cooking Problems

An important part of diagnosing any consumer
cooking concern is listening carefully to the
consumer describe the problem. Equally important
is asking the consumer the right questions. The
following diagnostic information is intended as a
guide for you to follow when addressing cooking
concerns.

Food Items Appear to be Undercooked

Foods which appear to be undercooked or
partially cooked can be the result of any one of the
following items. The possible causes listed below
are sorted from most likely to least likely, with item
#1 being the first item that you should check.
1. Is the consumer selecting the correct type of
cooking (microwave vs. speedcook), and/or is
the consumer using the correct time and
power levels for the type, size, and quantity of
food being cooked (see the Advantium cooking
guide)?
2. Is the consumer using the correct cookware
for the type of food being cooked (see pages
5 and 17 of the Owner's Manual, and pages 5
and 6 of the Advantium cookbook)?
3. Is the consumer arranging the food properly
on the metal cooking trays (see the Advantium
cooking guide and page 7 of the cookbook)?
4. Is the turntable operating properly so that
microwave energy and halogen heat are being
evenly distributed to the food?
5. Inspect the upper and lower halogen lamp
covers to ensure that they are free of grease
and food spatterings. Build-ups of grease and
food spatterings can cause a decrease in
cooking performance.
6. Confirm proper line voltage to the unit (check
voltage under full load).
7. Confirm that voltage compensation is
operating properly (see page 18 of this service
guide for details and diagnostic information).
8. Confirm that the upper and lower halogen
lamps are operating (illuminating).
9. Check upper and lower halogen lamp
operation at power level 10 and again at power
level 5 to be sure that lamps are cycling
properly. At this point, you must have a
thorough understanding of power level
operation, upper halogen lamp balance
operation, and thermal compensation (see
pages 17-21 of this service guide for detailed
information).
10. Perform a microwave performance test (page
44) to confirm that microwave energy output
(HV/magnetron circuit) is operating to
specification.
11. Are all fan motors operating properly (page 23
of this service guide)? During speedcook
operation, all fan motors must operate
(exhaust fan, upper halogen lamp blower,
lower halogen lamp blower, and magnetron
blower). Improper airflow can cause the
halogen lamps or magnetron tube to cycle on
the thermal cut-outs (T.C.O.s).

Food Items Appear to be Overcooked or Burned

Foods which appear to be overcooked or burned
can be the result of any one of the following items.
The possible causes listed below are sorted from
most likely to least likely, with item #1 being the
first item that you should check.
1. Is the consumer selecting the correct type of
cooking (microwave vs. speedcook), and/or is
the consumer using the correct time and
power levels for the type, size, and quantity of
food being cooked (see the Advantium
cooking guide)?
2. Is the consumer using the correct cookware
for the type of food being cooked (see pages
5 and 17 of the Owner's Manual, and pages 5
and 6 of the Advantium cookbook)?
3. Is the consumer arranging the food properly
on the metal cooking trays (see the Advantium
cooking guide and page 7 of the cookbook)?
4. Is the turntable operating properly so that
microwave energy and halogen heat are being
evenly distributed to the food?
5. Confirm proper line voltage to the unit (check
voltage under full load).
6. Confirm that voltage compensation is
operating properly (see page 18 of this service
guide for details and diagnostic information).
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