Forum Discussion

frmAloha's avatar
frmAloha
Explorer
Sep 06, 2015

Banging noise

When hooked to electricity, I've begun hearing a banging noise from the distribution center. It stops if I turn on lights that work off the battery or while the furnace is running. Asked about it when the rig was in for service, but was dismissed as unimportant. Any ideas about what's causing this? And should I be concerned?
Class A
  • rgatijnet1's avatar
    rgatijnet1
    Explorer III
    Sep 06, 2015
    I have heard electrical transfer switches that hum from time to time. Sometimes this could be fairly loud but I would not describe the noise as banging.
  • enblethen's avatar
    enblethen
    Nomad
    Sep 06, 2015
    Your service center shrugged you of and should not have. Any strange noises should be investigated.
    Do you have an energy management system? The noise you hear could be relays in it dropping or picking up.
    What type of electric service does the rig have 30 or 50 amp? Does it happen all the time or just connected to one type of service or another?
  • MountainAir05's avatar
    MountainAir05
    Explorer II
    Sep 06, 2015
    Sounds like the screw lugs for the wires in the transfer switch and breaker panel are not tight.
  • harley-dave's avatar
    harley-dave
    Explorer
    Sep 06, 2015
    TucsonJim wrote:
    My first guess would be the cooling fan is going bad.
    yep, I replaced one that did this very thing.

    Dave
  • frmAloha's avatar
    frmAloha
    Explorer
    Sep 07, 2015
    I appreciate all of your thoughts. They give me ideas to pursue with my service center.

    In case it helps, my rig is 30 amp, and the breaker panel is in a different area of the coach. This noise does sound similar to a something snapping on and off, but it comes from a panel that contains numerous fuses not breakers. The noise is intermittent. Could it have anything to do with a park's voltage?

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