Question about Whirlpool GH4155XP Microwave Oven

1 Answer

When I try to turn on my microwave it will not start and "door" shows up on the screen. The light on the inside is not workin either. This unit is 4 years old and we have already have the light fixed once - for 100.00 - tell me this is not same problem as this has been a very poor appliance - is there a reset button?

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  • William Miller
    William Miller May 11, 2010

    What is your model number? This
    is usually caused by either a bad door switch or a loose door switch
    mount, which are pretty simple problems to fix. This
    is usually caused by either a bad door switch, a loose door switch
    mount (which are pretty simple problems to fix) or
    occasionally a
    problem on the control panel.

    Even though a door
    switch clicks, it may still be bad inside.

    Door switch
    or mount trouble is usually caused by slamming the door or by opening
    the
    door while it's cooking without hitting the Stop pad first.

    There are
    plastic mounts inside the microwave which hold the door switches and
    onto which the door latches lock when you close the door.

    The screws on these
    mounts may be loose. If they get too loose, the switches will not be
    activated properly.

    Sometimes it's
    a broken tab on the switch holder, allowing the switch to rotate just
    out of position. This tab
    can be hard to see, since it is under the
    bottom edge of the switch.
    If the switch mount is broken, it's usually more economical and
    safer to add a dab or two of hot glue to the mount to secure the
    switch. Let it cool for about 30 minutes before using.
    One test that sometimes
    helps is to
    gently lift up (and/or push down) on the door or handle as you try to
    start it. If it works or tries to work, then it's a door switch mount
    or
    door alignment issue.

    If you only need a
    switch, you can order a universal type here for $5 postpaid.

    If you think the problem
    is on the control panel, we repair these nationwide by mail
    for $39.95 postpaid in most cases in about a week or so with a one-year guarantee.

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  • Master
  • 999 Answers

The "door" is telling you the door is not properly closed or a switch or two is not working properly. Start troubleshooting with the door switches. One of them is a monitor and is normally closed and opens when the door is closed. it will blow the fuse if it does not open before the other switches close. Very short time frame.
Eric

Posted on Jul 16, 2009

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Your issue is;
"we have a microwave modell MQ9998W, which is not responding, when we press start, it will not activate, clock counts,and light inside works, just will not start, I feel as though there is a fuse or something which is the problem. The unit is from 1990, if it is something simple i will try to fix , if not guess you know the alternative"

My Solution is:

Following this link, http://www.repairclinic.com/SmartSearch/SmartSearch.aspx, provides valuable D.I.Y. safety information on the make and model number of your appliance. In order to access your product information, you will need to enter the model number stamped on the manufacturers product information data tag, located on the unit.

Note: A volt-ohm meter is beneficial in performing electrical tests.

Thank you for providing a valid model number!


From your description, it sounds as if 1 or all of 3-4 door switches has failed. Using the link supplied above, you can view a page with these switches. The link below shows an exploded view of the service area. Using an ohm meter will help find the faulty switch.
http://www.repairclinic.com/0100_37.asp

Please show your appreciation by rating my solution.
Thank you,
Dave E. (Illeagle)

"Your satisfaction is my personal reward"


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