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Thread: Circuit Breaker trips same time every day

  1. #1
    DIY Junior Member Art Caballero's Avatar
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    Default Circuit Breaker trips same time every day

    I have 2 separate 15 Eaton ArcFault Breaker Type BRAF one for light and other for receptacles. They going to bedrooms and trips every morning at same time while were all asleep. This is odd.
    House was built in 2007. Do not have anything plugged in but lamps and radios that could cause tripping. Has anyone had same problem?

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    Retired Defense Industry Engineer jadnashua's Avatar
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    Does it happen when the alarm on the radio goes off (should it have an alarm)?

    As a test, unplug everything that is plugged in and see if it still happens.

    At some point, when AFCI were mandated, they had some issues and tripped when they shouldn't. I may be a replacement may solve that.
    Last edited by jadnashua; 08-25-2013 at 06:43 PM.
    Jim DeBruycker
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    Electrical Contractor/Instructor jwelectric's Avatar
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    Who are you going to call Ghost busters

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    DIY Senior Member bluebinky's Avatar
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    Ghost busters? Maybe a capacitor bank being switched in by the utility as the load ramps up in the morning is injecting enough noise to trip your breakers?

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    Jack of all trades DonL's Avatar
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    How can you tell it trips at the same time if you are asleep ?

    Do you have a automatic setback thermostat that is set for that time ?


    Good Luck.
    Theory only works perfect in a vacuum.

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    Electrician ActionDave's Avatar
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    Quote Originally Posted by Art Caballero View Post
    I have 2 separate 15 Eaton ArcFault Breaker Type BRAF one for light and other for receptacles. They going to bedrooms and trips every morning at same time while were all asleep. This is odd.
    House was built in 2007. Do not have anything plugged in but lamps and radios that could cause tripping. Has anyone had same problem?
    Ghosts are hard to track down. Start with unplugging and turning off everything that is on those two circuits and see if they still trip.

  7. #7
    DIY Junior Member Art Caballero's Avatar
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    Bluebinky, You are probably right. I tested both breakers last Sunday morning around 9:00 and problem went away until last night. Woke up last night for some reason at 5:25, just in time to have problem happen again.
    Went out to rest breakers at panel and guess who was up resetting his breakers. My neighbor. They are having same problem. Will contact utility company Monday.
    Last edited by Art Caballero; 08-31-2013 at 01:30 PM. Reason: reply address

  8. #8
    DIY Junior Member Art Caballero's Avatar
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    DonL, I have an automatic timer in my head. Always waking up early. It is genetic.
    Last edited by Art Caballero; 08-31-2013 at 01:24 PM. Reason: reply address

  9. #9
    DIY Senior Member Homeownerinburb's Avatar
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    Quote Originally Posted by bluebinky View Post
    Ghost busters? Maybe a capacitor bank being switched in by the utility as the load ramps up in the morning is injecting enough noise to trip your breakers?
    Thanks for the concept. Lord knows troubleshooting is a pain. And if the culprit is the utility, I would be slow to consider that.

    I'll file that one away.

  10. #10
    Jack of all trades DonL's Avatar
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    Could be a Ham Radio Operator on your street making his morning schedule.

    I have heard that RF on some bands can really play tricks with some Arc Fault Breakers.

    Some of the newer and better models have better RF filtering.
    Theory only works perfect in a vacuum.

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  11. #11
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Art Caballero View Post
    DonL, I have an automatic timer in my head. Always waking up early. It is genetic.

    Did you find a cure yet ?

    You can Google "Eaton AFCI ham radio" and find some interesting facts about the Eaton AFCI.

    I would consider replacing the Eaton with a Square D.


    Have Fun.
    Last edited by DonL; 09-04-2013 at 01:41 PM.
    Theory only works perfect in a vacuum.

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    DIY Senior Member Murphy625's Avatar
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    Quote Originally Posted by DonL View Post
    Could be a Ham Radio Operator on your street making his morning schedule.

    I have heard that RF on some bands can really play tricks with some Arc Fault Breakers.
    Umm.. I don't think so.. the tower would have to be inches from his wiring or blasting enough power for aliens to pick it up...

  13. #13
    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Murphy625 View Post
    Umm.. I don't think so.. the tower would have to be inches from his wiring or blasting enough power for aliens to pick it up...

    Many Hams do not have towers. They are not allowed.

    They disguise Flag poles and use attic antennas because of Home Owner Associations.

    2000 watts can cause problems 1/4 -1/2 mile away, with just a simple dipole antenna.
    Theory only works perfect in a vacuum.

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  14. #14
    DIY Senior Member Murphy625's Avatar
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    Quote Originally Posted by DonL View Post
    Many Hams do not have towers. They are not allowed.

    They disguise Flag poles and use attic antennas because of Home Owner Associations.

    2000 watts can cause problems 1/4 -1/2 mile away, with just a simple dipole antenna.
    2000 watts, even coming from a full wave or half wave antenna, would induce such a miniscule signal at 1000 yards that I have serious doubts it could possibly interfere with a device that is looking for a low frequency kilohertz signal inside household wiring.

    Now, maybe if you stuck the antenna in the middle of the house and wrapped the romex wire around the home you might get something....

    I guess stranger things have happened and I'm not saying it is impossible, but I would have to see it with my own eyes before I bought into that... We're really talking about what amounts to a radio signal, and a weak one at that, interfering with a land-line for all practical purposes.

    Now, if one were to suggest it could interfere with a cell phone or a tv signal or a wireless baby monitor or something, that would be more inline...

    But then, RF signal propagation is not really my cup of tea....

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    Jack of all trades DonL's Avatar
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    Quote Originally Posted by Murphy625 View Post
    2000 watts, even coming from a full wave or half wave antenna, would induce such a miniscule signal at 1000 yards that I have serious doubts it could possibly interfere with a device that is looking for a low frequency kilohertz signal inside household wiring.

    Now, maybe if you stuck the antenna in the middle of the house and wrapped the romex wire around the home you might get something....

    I guess stranger things have happened and I'm not saying it is impossible, but I would have to see it with my own eyes before I bought into that... We're really talking about what amounts to a radio signal, and a weak one at that, interfering with a land-line for all practical purposes.

    Now, if one were to suggest it could interfere with a cell phone or a tv signal or a wireless baby monitor or something, that would be more inline...

    But then, RF signal propagation is not really my cup of tea....


    Here is a test that a Ham did, Running 100 Watts, and his neighbor about 400 feet down the street let him do some testing.

    http://www.youtube.com/watch?v=JsILD0Fce1s

    The audio is a bit low, but it shows what happened.

    This panels AFCIs were affected by the 17 Meter Band, with only a 100 watt transmitter.
    Theory only works perfect in a vacuum.

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