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NoSnowInAZ's avatar
NoSnowInAZ
Explorer
Jan 11, 2017

One 110 outlet reading low

Since arriving at a new park, I've been having electric issues - suspected low voltage. Maintenance came and metered at pedistal. 120v.
My Surgeguard has knocked me off a few times. 50amp by the way. Been kicking off with elect water heater, microwave, and maybe heatpump on. Might sound like a lot been system has been fine in other locations right up till we arrived here. One giveaway of low power has been the microwave sounding like it's "starving" for power. I have run the genset (7000w) and everything runs give including the microwave.
Tonight I tested all 110 outlets. All tested st 120-121 except the microwave dedicated outlet with dedicated breaker. It tested at 109-110.
Any ideas? Of course, the park is claiming all is good.
  • Saying the Sureguard "Knocked you off" means nothing to me- a GFI can trip due to a downstream fault, but "knocked off" gives no information.
  • Mandalay Parr wrote:
    Chris Bryant wrote:
    Measure the voltage at the mwave breaker. If its low there, go,further, if it's fine, replace the outlet.

    X2
    You should measure with the mwave running.
    Find an electrical person to help you if need be.

    Call me if you want. Might be able to give you some tips over the phone.
    Where are you located? I'm in SW NM for the winter.
    I might be able to help you if we are close.


    I understand this recommendation based on the low-voltage at the outlet, but can someone explain how "My Surgeguard has knocked me off a few times" fits into the equation.

    Not trying to 2nd quess any electrical advise (lord knows I ain't no expert---have enough trouble with OHM's Law), just wondering how a down stream problem would trip the surgeguard?

    Can/does the surgeguard "sense" a problem down stream of the device? I thought it only "read" incoming? Can the DRAW on a single circuit, reduce the current to the entire unit without tripping that circuit's breaker?

    Two seperate problems??
  • Metering at the pedestal with no load says the source voltage is okay. It doesn't tell you if the wiring and outlet are okay. There is no voltage drop when there is no load. It may be hard to do but you need to verify pedestal voltage while under load. You may be able to back the plug out a little, enough to get some meter leads in and check the voltage when running the normal appliances in the MH.
  • Chris Bryant wrote:
    Measure the voltage at the mwave breaker. If its low there, go,further, if it's fine, replace the outlet.

    X2
    You should measure with the mwave running.
    Find an electrical person to help you if need be.

    Call me if you want. Might be able to give you some tips over the phone.
    Where are you located? I'm in SW NM for the winter.
    I might be able to help you if we are close.
  • Measure the voltage at the mwave breaker. If its low there, go,further, if it's fine, replace the outlet.
  • You may wish to turn off the water heater and heat pump when running the microwave. They may be on the same power leg as the microwave.

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