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Old 04-01-2013, 11:27 AM   #1
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Electrical HELP!!

I've been fighting the same problem for over a year now. My front tv, rear tv, and microwave will turn off and back on at random. According to the schematic from Fleetwood they're all on the same loop. Nothing seems to cause it to occur....ie outside temp, demand on electrical system, generator or plugged in, rough roads or parked. It occurs totally at random and sometimes it'll work all weekend with no problems. We had the shop look at it and all they could find was the house batteries failed load test and needed to be replaced. After replacing the batteries the problem was still there. I've checked the inverter several times when it occurs and only ONE time did I get a fault light indicating overload/overtemp. I pulled the inverter and with the cover off slowly warmed the heat sink using a heat gun. The fan came on and off as I applied and removed heat so I'm assuming the cooling fan is working properly. Also, the heat sink was not extremely hot when the fan came on. I've also checked the inverter several times while camping and the fan is running. I've never found the inverter to be hot and rarely is it even warm to the touch. Being as it's a combined fault overload/overtemp I'm not sure which it's indicating.

It's a Xantrex Freedom Inverter/Charger and the RV is a 2001 Fleetwood Expedition 36t.

Our next option is back to the shop for $125/hr troubleshooting. Since it doesn't happen all the time it could add up really fast!!!

Any suggestions would be greatly appreciated as I'm at a total loss as what could be the problem!:b anghead:

Thanks in advance for any help!
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Old 04-01-2013, 11:37 AM   #2
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Are they on a GFCI you might want to check or replace it.
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Old 04-01-2013, 11:43 AM   #3
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Is there a GFIC, in the circuit ? A couple of posts lately where the GFIC, was not passing power, to plugs down the circuit , even though the GFIC was not tripped.
If that's not a problem or a possibility, ( with 110 power disconnected) start at the circuit breaker and check that the wires are tight, pull every plug in, in the circuit, and tighten the wiring screws.Something is making poor contact somewhere.
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Old 04-01-2013, 11:44 AM   #4
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Just a thought...Pull the cover off your 120v breaker box and make sure the hot..neutral and ground connections are all tight for that circuit...Follow your wiring diagram to each outlet on that circuit and do the same....
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Old 04-01-2013, 11:51 AM   #5
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Check the bus bars inside the braker bar. We had some come lose and not a good out come. Burned several wires. Ours started out as lost power now and then also
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Old 04-01-2013, 11:54 AM   #6
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I'd check the wire connections and any GFI's if in the circuit as suggested. It sounds like all power on this circuit is provided through the inverter. When the power fails, I'd immediately check voltage into the inverter and see if there is 120 v out. If all the wiring is tight and passing electricity, the hang up has got to be the inverter.
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Old 04-01-2013, 01:01 PM   #7
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Quote:
Originally Posted by movin-on View Post
Just a thought...Pull the cover off your 120v breaker box and make sure the hot..neutral and ground connections are all tight for that circuit...Follow your wiring diagram to each outlet on that circuit and do the same....
X2- Check all the connections in your main box and any ancillary boxes in your coach. (PLZ) make sure you are unpowered when you do this.
I bet you are going to find your errant loose connection.
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Old 04-01-2013, 04:26 PM   #8
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Thanks for the suggestions. I forgot to mention that I did replace the only GFCI outlet on the loop and it was bad. I was pumped up thinking I had got it......but no...it may have been bad but it wasn't causing the problem! I guess I'll have to check every connection on that entire circuit to make sure I don't have a loose wire. If they all check out is there anything else it can really be besides an inverter problem??
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Old 04-01-2013, 06:50 PM   #9
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I would think that if it was the inverter, it would effect all the circuits that it feeds, but you never know with electrons...
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Old 04-02-2013, 02:28 AM   #10
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I think your Expedition is wired simalar to my discovery. On mine, the micro does not go thru the inverter. both tvs do. You should have two gfci oulets in your coach. Mine has one in the rear bedroom on the forward wall that protects the outside outlets and the central vac. the one in the bath protects the outlets in the kitchen but not the micro as it has its own curcuit. If you have 50 amp, you might have a loose or bad connection at a neutral bar in the curcuit breaker box. Many other guys and I have found loose connections just from vibration of driving. I hope this helps
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