Bosch HBL7 / HBN7 Oven Use and Care ManualProblem Solving
Solving Operational Problems
Before calling for service, check the following to avoid unnecessary service charges.
OVEN PROBLEMPROBLEM SOLVING STEPS
The oven mode or tempera-The knob was turned too rapidly. Turn knob slower until correct wording
ture selected or the numbersor temperature appears. Review manual instructions when setting clock,
selected do not appear in thetimer, or Self-Clean.
display
F followed by 2 or 3 digitsTouch UPPER CANCEL or LOWER CANCEL or turn power off at the
appear in the display windowcircuit breaker. Wait 5 minutes and turn it back on. If condition persists,
note the code number and call an authorized servicer.
F121This is caused by close contact to the control panel for more than 60
seconds, such as someone leaning against the controls or objects hanging
in front of controls. See item above for correction.
Cooling fan continues to runThe fan turns off automatically when the electronic components have
after oven is turned offcooled sufficiently.
Oven door is locked and willTurn the oven off at the circuit breaker and wait 5 minutes. Turn breaker
not release, even after coolingback on. The oven should reset itself and will be operable.
Oven is not heatingCheck the circuit breaker or fuse box to your house. Make sure there is
proper electrical power to the oven. Make sure the oven temperature has
been selected.
Oven is not cooking evenlyCheck oven calibration. Adjust calibration if necessary (see Calibrating
Oven Temperature, Page 28). Refer to cook charts for recommended rack
position. Always reduce recipe temperature by 25°F when baking with
Convention Bake mode.
Oven temperature is too hotThe oven thermostat needs adjustment. See Calibrating Oven Temperature,
or too coldPage 28.
Oven light is not workingReplace or reinsert the light bulb if loose or defective. See Page 37.
properlyTouching the bulb with fingers may cause the bulb to burn out.
Oven light stays onCheck for obstruction in oven door. Check to see if hinge is bent.
Cannot remove lens cover onThere may be a soil build-up around the lens cover. Wipe lens cover area
lightwith a clean dry towel prior to attempting to remove the lens cover.
Oven will not Self-CleanAllow the oven to cool before running Self-Clean. Always wipe out loose
properlysoils or heavy spill-over before running Self-Clean. If oven is badly soiled, set
oven for a four-hour Self-Clean. See Preparing the Oven to Self-Clean, Page 31.
Clock and timer are notMake sure there is proper electrical power to the oven. See the Clock
working properlyand Timer sections on Pages 12 and 13.
Excessive moistureWhen using Bake mode, preheat the oven first. Convection Bake and
Convection Roast will eliminate any moisture in oven (this is one of the
advantages of convection).
Porcelain chipsWhen oven racks are removed and replaced, always tilt racks upward and
do not force them to avoid chipping the porcelain.
HOW TO OBTAIN SERVICE
For authorized service or parts information call 800/ 735-4328.
We want you to remain a satisfied customer. If a problem does come up that cannot be resolved to
your satisfaction write to Bosch Customer Support, 5551 McFadden Avenue, Huntington Beach CA,
92649 or phone 800 / 735-4328.
Please include the Model Number, Serial Number and date of original purchase and installation.
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