Electric Double Oven trips the breaker - sometimes

Discussion in 'Electrical Forum discussion & Blog' started by KPA49, Sep 14, 2020.

  1. KPA49

    KPA49 New Member

    Joined:
    Sep 14, 2020
    Location:
    Columbus, OH
    After 14 years of normal use, our Kenmore Double ovens started tripping the breaker.

    Remedies:

    1. Replaced the breaker
    2. Ovens worked for a few days - then tripped the breaker again
    3. Following several service calls on the ovens - we replaced the ovens
    4. Ovens worked well for a couple of months - then tripped the breaker
    5. Service call on new oven - tech tried numerous tests, finally with mfg. tech on the phone
    power was restored - tech was not satisfied and scheduled another visit to replace circuit boards
    6. Boards replaced - worked well for a couple of weeks
    7. Tripped the breaker again - breaker would reset and restore power but the heating control board was dead.

    Before I have the boards replaced again (under warranty) should I have an electrician fish a new wire??
     
  2. fitter30

    fitter30 Active Member

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    Occupation:
    Retired service tech
    Location:
    Peace valley missouri
    Intermittent trips could be caused by many things from a bad or loose connection in the ovens are at the breaker where it plugs in. Take note when the trip happens which oven was on, how long was it on. After ovens have been on for 30 minutes touch the circuit breaker see if it's warm or hot not the trip lever but the flat part.
     
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  4. GaryMetro

    GaryMetro New Member

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    Seattle, WA
    I'm sure it isn't easy to get behind the oven but you may want to check the wall receptacle where it is plugged in for dirt or grease or other such issue which could somehow be causing a short.
     
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Are you positive that the wiring circuit is the proper size for the ovens in use?
     
  6. WorthFlorida

    WorthFlorida The wife is still training me.

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    Orlando, Florida
    Does it trip with one or both ovens on? Get a clamp meter and with both ovens on, get a reading on L1 and L2 on the current draw. Both L1 and L2 should read about the same and the current should be no more than 80% of the breaker size. The turn on one oven at a time and get a current reading. If the ovens are the same current should be the same. If the one is larger than the other, the electric label will give the max current draw.
    When the ovens were replaced and they are on a plug to the wall, was the receptacle (wall) side cover ever removed and inspected?
     
  7. KPA49

    KPA49 New Member

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    Location:
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    Yes, it was verified by two different techs..... thanks for responding!!
     
  8. KPA49

    KPA49 New Member

    Joined:
    Sep 14, 2020
    Location:
    Columbus, OH

    It has tripped with one, and both ovens in operation, but not consistently. The receptacle was inspected, and replaced.

    I am at the point where I am prepared to have a new wire fished from the Breaker box to the ovens....

    Thanks for your help!
     
    Last edited: Sep 21, 2020
  9. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    A new cable maybe in order as you suggest. It could be a nail or screw penetrated the cable and who knows when and it is finally showing it's ugly head though you would think it be a hard short. Another possibility is something chewed into the cable.
     
    Last edited: Sep 22, 2020
  10. WorthFlorida

    WorthFlorida The wife is still training me.

    Joined:
    Oct 28, 2009
    Occupation:
    Retired
    Location:
    Orlando, Florida
    When a breaker trips it's one of two things, an short or heat from overload. A short Will immediately trip and the breaker temperature will be the ambient air. An overload the breaker heats up and the if you feel the breaker it will be warm to hot. A reset may take some time for it to cool down and may not immediately reset. Just some clues to help what is going on.

    I know you changed the breaker so it's assumed that the blades inside the panel were in good shape with no corrosion. A good electrician will know of the known panels that are notoriously bad.
     
  11. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Joined:
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    Occupation:
    Retired Systems engineer for defense industry.
    Location:
    New England
    If you don't use one of the approved breakers for the panel, you can get some weird results as the tension of the blade contacts may not be the proper size, shape, or tension. There's usually a list of acceptable models on the back of the door. Breakers aren't universally interchangeable.

    You aren't for chance dealing with aluminum wires are you?
     
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