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Bosch HMB Oven Use and Care Manual
Trouble Shooting
Before Calling for Service
You can often correct operating problems yourself. If your microwave oven fails to work properly, locate the
operating problem in the list below and try the solutions listed for each problem. If the microwave oven still does
not work properly, refer to Page 24 to obtain service.
PROBLEM POSSIBLE CAUSES
Oven does not start Is there power to the oven?
Is the door closed?
Is the cooking time set?
Arcing or sparking Are you using approved cookware?
Is the oven empty?
Incorrect time of day Have you tried to reset the time of day?
Unevenly cooked foods Are you using approved cookware?
Is the glass turntable in the oven?
Did you turn or stir the food while it was cooking?
Were the foods completely defrosted before cooking?
Was the time and cooking power level correct?
Overcooked foods Was the time and cooking power level correct?
Undercooked foods Are you using approved cookware?
Were the foods completely defrosted before cooking?
Was the time and cooking power level correct?
Are the ventilation ports clear?
Improper defrosting Are you using approved cookware?
Was the time and defrosting power level correct?
Did you turn or stir the food during the defrosting cycle?
WARNING:
This equipment generates and uses ISM frequency
energy and if not installed and used properly in strict
accordance with the manufacturer’s instructions,
may cause interference to radio and television
reception. It has been type tested and found to
comply with limits for ISM Equipment pursuant to
part 18 of FCC Rules, which are designed to provide
reasonable protection against such interference in
a residential installation.
However, there is no guarantee that interference will
not occur in a particular installation. If this equipment
does cause interference to radio or television
reception, which can be determined by turning the
oven off and on, the user is encouraged to try to
FEDERAL COMMUNICATIONS COMMISSION RADIO FREQUENCY INTERFERENCE
STATEMENT (U.S.A. ONLY)
• Reorient the receiving antenna of the radio or
television.
• Relocate the microwave oven with respect to
the receiver.
• Move the microwave oven away from the
receiver.
• Plug the microwave oven into a different outlet
so that the microwave oven and the receiver are
on different branch circuits.
The manufacturer is not responsible for any radio or
TV interference caused by unauthorized modification
to this microwave oven. It is the responsibility of
the user to correct such interference.
Page 22
Trouble Shooting
correct the interference by one or more of the
following measures: