Kitchenaid Microwave Oven Problem

Discussion in 'Electronic Repair' started by rsherm@ix.netcom.com, Feb 13, 2005.

  1. Guest

    Has anyone had the following problem or have any suggestions as to a
    fix?

    Several months ago I installed a Kitchenaid Microwave/Convection
    Oven combo (model kemc307kwh02). Right from the start two problems with
    the microwave oven were evident:

    If the door is opened while the oven is operating, the display still
    indicates that the unit is cooking, the fan still runs, the timer
    continues to count down, and the light remains on -- in short, it
    appears in all respects that the oven is still microwaving, except that
    the turntable stops. Closing the door starts the turntable again.

    Second, when the microwave finishes its cycle, it turns off, beeps,
    and displays the message "End" on the panel -- just as it should.
    However, opening the door and removing the food, then closing the door
    does not reset the program -- the "End" message is still displayed and
    the reminder tones sound every minute until you press the "Cancel"
    button. The manual clearly indicates that simply opening and closing
    the door should reset the program.

    I purchased the unit from Sears, and they first verified that the
    unit was not continuing to microwave when the door was opened. They
    then replaced the master control unit and the keypad TWICE with no
    effect. They also checked every microswitch they could find, with no
    effect. Finally, they declared the unit a lemon and ordered a
    replacement. I installed the replacement a few days ago and ---- it
    does the same thing!!!

    I've called Kitchenaid several times, and they have verified each
    time that these are problems, not features. However, they are also at
    a loss to explain them. I'd just as soon get my money back and buy
    another brand, but I have a feeling that will be difficult.

    Has anyone else had these problems or have any suggestions as to a
    fix???

    Richard Sherman
    , Feb 13, 2005
    #1
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  2. NSM Guest

    <> wrote in message
    news:...

    > Second, when the microwave finishes its cycle, it turns off, beeps,
    > and displays the message "End" on the panel -- just as it should.
    > However, opening the door and removing the food, then closing the door
    > does not reset the program -- the "End" message is still displayed and
    > the reminder tones sound every minute until you press the "Cancel"
    > button. The manual clearly indicates that simply opening and closing
    > the door should reset the program.


    It's got to be a door switch - or the controller is not 'reading' the
    switch.
    --
    N
    NSM, Feb 13, 2005
    #2
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  3. "NSM" <> writes:

    > <> wrote in message
    > news:...
    >
    > > Second, when the microwave finishes its cycle, it turns off, beeps,
    > > and displays the message "End" on the panel -- just as it should.
    > > However, opening the door and removing the food, then closing the door
    > > does not reset the program -- the "End" message is still displayed and
    > > the reminder tones sound every minute until you press the "Cancel"
    > > button. The manual clearly indicates that simply opening and closing
    > > the door should reset the program.

    >
    > It's got to be a door switch - or the controller is not 'reading' the
    > switch.


    And since a replacement unit did the same thing, a design flaw.

    However, is there anything special about the installation? Any electronics
    that might be interfering with it somehow, as unlikely as that sounds?

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    Important: Anything sent to the email address in the message header above is
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    Sam Goldwasser, Feb 13, 2005
    #3
  4. Jerry G. Guest

    The problem you are describing is either the door switch, or a defect with
    the controller.

    To properly verify if it is not cooking with the door opened, a microwave
    radiation meter is required. If you opened the door, and it was still
    cooking, I have a feeling you would have certainly felt it, because you
    would be standing too close. The problem is that if you felt the effect of
    the microwave oven, this can be very dangerous.

    Since they changed the oven, and the new one has the same type of unusual
    operation, I would assume that you are experiencing a design fault. I would
    have returned the oven immediately, and ask the dealer to exchange it for
    another make and model.

    From what I have read in the consumer reports in the past, there are other
    manufactures of microwave ovens who had excellent reviews. From my
    experience from both using and servicing them, I very strongly like most of
    the Panasonic models, and some models of the GE. The LG units are also very
    good.

    In the Kitchenade, their refrigerators, freezers, washers, dryers, and
    stoves are excellent. I would not rate their microwave ovens as one of their
    best. I have a number of major appliances in Kitchenade, and they are more
    than excellent from my own experience.

    You may no longer be able to exchange your microwave oven. Rather than live
    with it, you may have to bite the bullet, just bin it, and get a better one
    of another make.

    One thing you can do that would be a very good annoyance, is to send it back
    to their head office by carrier with long letter of all the faults, and how
    unhappy you are. You will certainly get a response from them. When they
    call, you can then give them a good talking on the phone about it! I am
    sure that they are aware of the faults, but it is their service contractors
    who are not caring enough, or they are tied by the faults it has.

    As you know, when you open the door of any microwave oven, it is supposed to
    completely stop, and only the utility light should be on. The display should
    stop counting, and on many models, indicate a warning to close the door, and
    press start to continue, or press stop to end.

    Actually speaking, when using any microwave oven, it is proper and safer
    practice to press stop one time before opening the door. The cooking process
    should stop. A second pressing of the stop button should normally terminate
    the cooking cycle.

    Opening the door while it is working is harder on the microswitches in some
    models. It also creates a situation if in the case that there are any
    defective microswitches, there is the increased chance of radiation exposure
    to the person who is opening the door, and anyone else in the immediate
    area. After closing the door, pressing the start button should continue the
    cooking process, as long as the job task has not been terminated.

    Most likely, if you used the oven in the manner in which I am explaining
    here, it would probably server you well.

    --

    Jerry G.
    ======


    <> wrote in message
    news:...
    Has anyone had the following problem or have any suggestions as to a
    fix?

    Several months ago I installed a Kitchenaid Microwave/Convection
    Oven combo (model kemc307kwh02). Right from the start two problems with
    the microwave oven were evident:

    If the door is opened while the oven is operating, the display still
    indicates that the unit is cooking, the fan still runs, the timer
    continues to count down, and the light remains on -- in short, it
    appears in all respects that the oven is still microwaving, except that
    the turntable stops. Closing the door starts the turntable again.

    Second, when the microwave finishes its cycle, it turns off, beeps,
    and displays the message "End" on the panel -- just as it should.
    However, opening the door and removing the food, then closing the door
    does not reset the program -- the "End" message is still displayed and
    the reminder tones sound every minute until you press the "Cancel"
    button. The manual clearly indicates that simply opening and closing
    the door should reset the program.

    I purchased the unit from Sears, and they first verified that the
    unit was not continuing to microwave when the door was opened. They
    then replaced the master control unit and the keypad TWICE with no
    effect. They also checked every microswitch they could find, with no
    effect. Finally, they declared the unit a lemon and ordered a
    replacement. I installed the replacement a few days ago and ---- it
    does the same thing!!!

    I've called Kitchenaid several times, and they have verified each
    time that these are problems, not features. However, they are also at
    a loss to explain them. I'd just as soon get my money back and buy
    another brand, but I have a feeling that will be difficult.

    Has anyone else had these problems or have any suggestions as to a
    fix???

    Richard Sherman
    Jerry G., Feb 13, 2005
    #4
  5. Richard Guest

    Thanks for the replies. I agree with the controller/switch assessments
    -- but what are the odds that 4 controllers (3 in the original unit and
    1 in the new one ) would all be bad? Or that the switches would also
    be bad in two units? I'm beginning to think, though, that both units
    and all the controllers might come from the same subcontractor or
    assembly plant -- i.e., there is a batch of these things out there
    coming from the same source.

    As far as electronics interfering -- the problems occur consistently,
    whereas other devices nearby (i.e. remote phone) are not always on.
    Just to be sure, I will unplug everything and see if that makes a
    difference.

    The installation seems ok. The unit is on its own 50amp 220 circuit,
    and the wiring in the house is about 12 years old.

    Thanks again.

    Richard
    NSM wrote:
    > <> wrote in message
    > news:...
    >
    > > Second, when the microwave finishes its cycle, it turns off,

    beeps,
    > > and displays the message "End" on the panel -- just as it should.
    > > However, opening the door and removing the food, then closing the

    door
    > > does not reset the program -- the "End" message is still displayed

    and
    > > the reminder tones sound every minute until you press the "Cancel"
    > > button. The manual clearly indicates that simply opening and

    closing
    > > the door should reset the program.

    >
    > It's got to be a door switch - or the controller is not 'reading' the
    > switch.
    > --
    > N
    Richard, Feb 13, 2005
    #5
  6. NSM Guest

    "Richard" <> wrote in message
    news:...
    > Thanks for the replies. I agree with the controller/switch assessments
    > -- but what are the odds that 4 controllers (3 in the original unit and
    > 1 in the new one ) would all be bad? Or that the switches would also
    > be bad in two units? I'm beginning to think, though, that both units
    > and all the controllers might come from the same subcontractor or
    > assembly plant -- i.e., there is a batch of these things out there
    > coming from the same source.


    It happens. A good tech can figure it out.
    --
    N
    NSM, Feb 13, 2005
    #6
  7. Richard Guest

    PROBLEMS FIXED!!!

    Sometimes what seems complicated is actually very simple. We had an
    electrician check the oven circuit yesterday and in very short order he
    found a faulty grounding problem inside the service panel. A simple
    fix and both the problems I described went away --- opening the mw door
    during the cooking cylcle completely shuts down the unit, and closing
    the door and pressing "start" again resumes the program where it left
    off. The other problem is also gone -- removing food at the end of the
    cycle resets the display simply by closing the door.

    Although I have been very happy with Sears service in most ways, it
    seems to me this whole saga might have been avoided had they checked
    the ground at the junction box where the oven is wired into the circuit
    as one of the *first* trouble shooting steps. They would have
    discovered that the ground was faulty, and had me hire an electrician
    to fix that problem at my own expense. Of course, it was easy to
    assume the circuit must be ok since a previous wall oven combo had been
    working just fine for 12 years......

    Anyway, thanks to all of you who gave me advice. I hope my experience
    can help you in the future.

    Richard
    Richard, Feb 16, 2005
    #7
  8. Richard wrote:
    > PROBLEMS FIXED!!!


    Great...and what a story! I never would have thought that a bad ground
    (more likely, a bad neutral) would have caused the symptoms you
    described. But now that we have the 'rest of the story' I can see how
    that would happen.

    Thanks for the follow up.
    Travis Jordan, Feb 16, 2005
    #8
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