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Old 12-02-2016, 09:10 PM   #1
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Electric amp problem

Hi there,
New to full timing and enjoying it. We keep learning. Our unit is a 08 Bounder 35 H. This just started happening yesterday on the Load Meter that is mounted in the master bedroom. Sometimes off for short burst or on and than runs up and down the meter read from 0 all the way up 50 amp until it's normal read at 50 as and all works fine. We are hooked up to 50 amp shore power that is metered. Any thoughts what might be the problem?
Thanks Ken
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Old 12-02-2016, 09:21 PM   #2
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Sounds like you have a Energy Management System (EMS). Do you know what make/model. Are any systems shutting down, is it shedding loads?

The system will monitor current usage for the entire system and report. You could have a loose connection or a control board going bad.
Jim J
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Old 12-03-2016, 12:48 AM   #3
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Thanks, not sure about EMS unit or it's location, will see if I can locate in the AM.
The only item we notice not working was the heater and that's when I noticed the load meter was dead for a short while and than returned going up and down 0 amps to 50 amps and finally would lock in on the 50 amps and all was back to normal, For a period of time and start over again. That's has happened about 4 time.
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Old 12-03-2016, 07:45 AM   #4
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I would suspect you're loosing power on one of the legs (or neutral).

Could be somewhere in the path or the power post, your plug or cable, EMS power protector, transfer switch, or circuit breaker box.

It's a matter of getting a voltmeter out and start checking everything, and making sure all of the wire connections are also tight and secure.

If you have an EMS power protector (like a progressive), then it could be it's detecting low voltage on one of the legs, and then shutting down the power to the coach. When shore power is within correct range again, it turns back on until it detects another error condition. Progressives have displays which will supply an error code, if this is your problem.
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Old 12-03-2016, 10:11 AM   #5
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When plugged into 50 amps the amp meter on an Energery Management (Load Shedder such as the Intelletec) should be dark, no indication at all

Showing 0, then running up to 50, then shutting off (or showing actual load) indicates 30 amp service and a power "blink" The run up zero to 50 is the POST (Power on self test) following a power outage.

Loss of JUST one leg, will also cause the unit to activate, that might cause the POST to happen, and with just one leg it SHOULD show amps.

Why does it not show amps on a proper 50 amp circuit?
Because it is measuring the current on the NEUTRAL lead. if you are plugged into 30 amps using an adapter this is your total current use. but if plugged into 50 amps it is the difference between L-1 and L-2 and basically meaningless.. So they shut it off.
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Old 12-03-2016, 03:49 PM   #6
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My Intelletec sometimes acts squirrelly like you're experiencing. I found the fix was to reset it by shutting off the power at the pedestal and disconnecting the coach batteries. It needs a 12 volt reset.
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Old 12-04-2016, 09:06 AM   #7
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Thanks, have started checking all electric connection. working fine for about 24 hr now. Ken
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Old 12-04-2016, 09:13 AM   #8
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Thanks, it's working fine for about a 24 hr now. Will keep checking but all is well now Ken
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