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GE Microwave Relay Needed

Discussion in 'Electronic Repair' started by William R. Walsh, Mar 2, 2009.

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  1. My mother bought what has to be the world's cheapest GE
    Microwave...totally against every recommendation I offered. Amazingly,
    it did manage to last just beyond the warranty period.

    This is the second time it has broken. On the first time around, the
    relay that controls the fan, light and turntable motor unsoldered
    itself from the control board. I soldered it back on, and the
    microwave worked again.

    It died again few weeks ago, and I just got to looking at it. The same
    relay is to blame. It has badly burned contacts, and no more heavily
    than it is loaded, I suspect it was a dud from the start.

    The relay is am Omron G5G-1A (rated 16A/120 volts) with a 12 volt
    coil. I don't have anything in my junk box that would work as a
    replacement, and I can't find it being offered for sale anywhere.

    A call to Omron was unhelpful to put it kindly. I was told that the
    part was custom made until I pointed the operator to the data sheet on
    their own web site. Then I was told that they couldn't just provide
    one, a minimum order was fifty and there would be a 12-14 week wait.

    GE parts will sell the control board for $61...as much as the oven
    cost new. They didn't think I could order just a relay, although the
    person I spoke with did claim to look into it.

    Anyone here have such a thing in their junkbox or know where to get
    one?

    William
     
  2. jakdedert

    jakdedert Guest

    My guess is that unless you can dress the contacts, you're stuck finding
    something similar and adapting it to fit. With 12 volts on the coil,
    that points to a vast inventory of automotive products to choose from.

    jak
     
  3. hr(bob)

    hr(bob) Guest

    Where I live there are a lot of junked microwaves available, as well
    as working ones at Good Will and Salvation Army. Any of those might
    have a spare. Also, where do you live, it might make it possible to
    get one to you?.

    Bob Hofmann
     
  4. Jerry

    Jerry Guest

    Here in the Phoenix area there is a non-profit outfit called Stardust,
    which mainly deals in used items from remodels - cabinets, fixtures,
    stoves, etc., and uses the proceeds to help people with housing
    issues. The usually have quite a selection of microwaves. Maybe you
    have something similar where you live, where you could pick up a donor
    microwave for cheap.

    Jerry
     
  5. Hi!
    It was difficult to open the relay without destroying its internals. I
    mangled the casing pretty badly while trying to ease it up and off.
    It's still functional. The contacts are so badly burned that I haven't
    been able to save them so far.
    I hadn't thought of that...that is a good idea. I'll have to see what
    is on the market if some of the other leads don't turn anything up.

    I'd let this oven go and send it toward the parts bin and recyclers,
    but I hate to do that.

    William
     
  6. jakdedert

    jakdedert Guest

    What is the contact architecture? I've seen automotive relays up to
    maybe 8PDT or more. If you can find a similar, different voltage,
    relay, perhaps you can swap pieces from it....

    jak
     
  7. jakdedert

    jakdedert Guest

    In Nashville, the Habitat for Humanity folks have a couple of stores
    dedicated to 'home' stuff. One deals in appliances and architectural
    pieces, while the other stocks donated housewares; although there's a
    bit of overlap between them. Also quite a bit of overstock hardware
    items, and mis-mixed or leftover paint.

    jak
     
  8. Mike WB2MEP

    Mike WB2MEP Guest

    William,

    Have you checked Mouser Electronics? Their catalog has 17 pages of
    PCB-mount power relays. They carry Omron relays, but not the G5G
    series.
    If this is the type of relay with the contact terminals sticking out
    the top, they have Fujitsu, Panasonic, and OEG relays in that
    configuration. The pinouts may be different than your Omron.
    In that case, you'd have to drill new mounting holes in the PCB and
    run jumpers to the coil pins.

    Mike
    WB2MEP
     
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