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Bosch HBL64 Series Wall Oven Fan Intermittent

The fan on my electric wall-mounted oven is intermittent. It cycles on/off during the cool-down phase, but today the fan didn't kick-in when I turned it on bake mode, but it worked fine on convection mode. Later, I turned it back to bake mode and it worked fine. Also a question regarding the convection mode: there is a loud buzzing noise (not the fan!) that goes away once the set temperature is reached. Any feedback is appreciated.

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4 Suggested Answers

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Posted on Jan 02, 2017

  • 116 Answers

SOURCE: Double oven / convection not working

It is likely that the convection element is burned out and needs to be replaced. If all other functions are working then this is the place to start. Teh back panel inside of the oven can be removed by removing the 4 visible philips screws on it. The element should look smooth and round, if not then it needs to be replaced. Be sure to turn power off to the oven before replacing it. Remove the screws that fasten the element to the back wall and gently pull the element away from the wall an inch or so. the wires will be exposed and can be unclipped from the element do not let them fall inside of the back of the oven or you will have to remove the oven from the wall to get at the back panel. Install the new element in the reverse procedure. If the element looks good then it will have to be tested with a multimeter to verify that it is still good before proceeding to check the selector switch for burn marks.

Posted on Mar 11, 2007

  • 190 Answers

SOURCE: Bosch oven not heating to temp

Dear customer,
i recommend u to try the following routine to sort out this problem

  • Check timer and clock settings
  • Reseat the element
  • Test the element
  • Test the element connectors
  • Test the oven temperature control
  • Test the oven selector control
  • Recalibrate the temperature control

  • hope u find this useful. thank you.

    Posted on Jul 09, 2008

    eagle338
    • 4889 Answers

    SOURCE: F2 fault, continuous fan after clean cycle for Jenn-Air electric convection wall oven

    The "F2" means the oven control senses runaway temperature. The cause of the problem could be the oven sensor, the oven sensor wire harness or the power relay board.
    PS:please disconnect your oven from power supply completely before continuing.

    Open the control panel and measure the oven sensor resistance at the control board. It suppose to be about 1100 Ohms at the room temperature.

    If the reading is wrong do the same test at the oven sensor connection (where the sensor wires goes through the back panel).

    If the reading is still wrong - replace the oven sensor.

    If the reading is correct, check the wire harness and the connector itself (it's better to eliminate the plastic plug and hardwire the oven sensor).

    If there is nothing wrong then the power relay board has to be replaced.

    Posted on Nov 07, 2008

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