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House power [message #347549] Mon, 09 September 2019 08:24 Go to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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Generator running - AC is only thing that will come on. No power to lighting, recptacles, or roof vent fans.

Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach
Re: House power [message #347552 is a reply to message #347549] Mon, 09 September 2019 08:36 Go to previous messageGo to next message
RF_Burns is currently offline  RF_Burns   Canada
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Those items all run off 12Vdc. So your power convertor is not working and house battery is dead, or you have power issues to your 12Vdc fuse distribution panel

Edit: Opps you said receptacles too. So since your A/C is working then you must have power to the breaker panel. Check the breakers in the 120V panel to be sure none have tripped. Also the wires inside the panel can work loose after 40 years of shaking down the road. Pull the 120V power cord, open the panel and tighten all wire fasteners. If you do not know how to do this safely, get an Electrician to do it.


Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

[Updated on: Mon, 09 September 2019 08:39]

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Re: House power [message #347553 is a reply to message #347549] Mon, 09 September 2019 08:36 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
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Lighting and fans are pretty much all 12v. Be sure all the breakers are on and the 12v 'converter' (a simple or somewhat sophisticated 12 volt power supply)is producing voltage at its output. Then have a look at the 12v fuse panel and see if maybe some are missing or blown. Report back.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: House power [message #347554 is a reply to message #347549] Mon, 09 September 2019 08:38 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
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You say the receptacles are dead? but the genset runs? Check the breakers again. One of the two on top may be tripped. Or there may be a loose connection in the breaker box. Please to unpower the coach before opening that box.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: [GMCnet] House power [message #347555 is a reply to message #347549] Mon, 09 September 2019 08:32 Go to previous messageGo to next message
Rich Kinas is currently offline  Rich Kinas   United States
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Hmm...cycle the breakers in the breaker panel. If no lights or fans then
buzz box / inverter should be looked at. No outlets....Has to be a breaker
issue.

Rich

On Mon, Sep 9, 2019 at 9:25 AM Samuel Ferguson via Gmclist <
gmclist@list.gmcnet.org> wrote:

> Generator running - AC is only thing that will come on. No power to
> lighting, recptacles, or roof vent fans.
>
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Rich Kinas 1976 Elaganza II Orlando, FL
Re: House power [message #347556 is a reply to message #347549] Mon, 09 September 2019 08:40 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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Lights and roof vents are 12 volt, receptacles are 110 but since we don't know which coach or year you have it could be something as simple as a breaker needing flipped or shore power cord plugged in to coach. On some coaches with 2 roof A/Cs one runs off the generator and the other off shore power. You need to tell us more, guessing won't work.


Samuel wrote on Mon, 09 September 2019 09:24
Generator running - AC is only thing that will come on. No power to lighting, recptacles, or roof vent fans.


C. Boyd
76 Crestmont
East Tennessee
Re: House power [message #347558 is a reply to message #347556] Mon, 09 September 2019 08:44 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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[ok 76 Eleganza. Converter not working or getting power. Bad breaker or connection at fuse box.




quote title=C Boyd wrote on Mon, 09 September 2019 09:40]Lights and roof vents are 12 volt, receptacles are 110 but since we don't know which coach or year you have it could be something as simple as a breaker needing flipped or shore power cord plugged in to coach. On some coaches with 2 roof A/Cs one runs off the generator and the other off shore power. You need to tell us more, guessing won't work.


Samuel wrote on Mon, 09 September 2019 09:24
Generator running - AC is only thing that will come on. No power to lighting, recptacles, or roof vent fans.
[/quote]


C. Boyd
76 Crestmont
East Tennessee
Re: House power [message #347559 is a reply to message #347549] Mon, 09 September 2019 08:57 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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I had it plugged in to shore power (50 amp) a few days ago and everything worked fine. Just got ONAN running yesterday and found that only AC ran. Nothing else working.

Samuel Ferguson


Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach
Re: House power [message #347560 is a reply to message #347553] Mon, 09 September 2019 09:10 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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I had it plugged in to shore power (50 amp) a few days ago and everything worked fine. Just got ONAN running yesterday and found that only AC ran. Nothing else working.
Breakers are "on" and appear to be good. No fuses blown. Inverter has power to it.
Samuel Ferguson


Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach
Re: House power [message #347561 is a reply to message #347560] Mon, 09 September 2019 09:26 Go to previous messageGo to next message
6cuda6 is currently offline  6cuda6   Canada
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Sounds like its possibly the way the generator connector is wired into the fuse box....perhaps its set up to only run the A/C?

Rich Mondor, Brockville, ON 77 Hughes 2600
Re: House power [message #347570 is a reply to message #347552] Mon, 09 September 2019 11:23 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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I'm a newbie to this type of rv. Is it an inverter or a converter? I checked the receptacles and I do have power to them and the AC unit, with generator running. Lights and Refrigerator do not come on with generator running. Lights, receptacles and refrigerator all work with rv being plugged in to shore power. Do the lights and refrigerator go through the inverter/converter?

Can the inverter/converter be bad to where it would work fine on shore power but not work from generator?


Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach

[Updated on: Mon, 09 September 2019 11:34]

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Re: House power [message #347572 is a reply to message #347570] Mon, 09 September 2019 11:28 Go to previous messageGo to next message
bwevers is currently offline  bwevers   United States
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If the generator is running, maybe the circuit breaker on the generator is open.
Or the shore power plug has to be plugged into the generator.

I've got one of these:
Progressive Dynamics PD9260CV Inteli-Power 9200 Series Converter/Charger with Charge Wizard - 60 Amp

It's a battery maintainer and 12V supply.


Bill Wevers GMC49ers, GMC Western States 1975 Glenbrook - Manny Powerdrive, OneTon 455 F Block, G heads San Jose

[Updated on: Mon, 09 September 2019 11:30]

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Re: House power [message #347573 is a reply to message #347549] Mon, 09 September 2019 11:36 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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Can the converter be bad to where it would work fine on shore power but not work from generator?


Circuit Breaker on generator? Location?


Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach

[Updated on: Mon, 09 September 2019 11:37]

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Re: House power [message #347576 is a reply to message #347549] Mon, 09 September 2019 12:38 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Sort of. The original Triad buzz box converter was somewhat particular about 60Hz frequency due to a resonance circuit. If your gen is running too fast or too slow it could be an issue.
Also with gen off, open the 14-50R receptacle box in the cable cubby. You should have a jumper wire between the L1 and L2 connections so both sides get 120V power.
Breaker for Onan is on top of unit.


John Lebetski
Woodstock, IL
77 Eleganza II

[Updated on: Mon, 09 September 2019 12:39]

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Re: House power [message #347577 is a reply to message #347573] Mon, 09 September 2019 12:40 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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I wouldn't think so.. The shore power works everything but when you plug the shore power cord into the generator receptical in the cord door only part of the stuff works? Is there any chance your PO did what mine did and added another plug in the power cord hole for an inverter to supply 110volts off the batteries? It bought has to be a loose wire connection from the gen plug to the circuit breaker box or something loose in the box.







Samuel wrote on Mon, 09 September 2019 12:36
Can the converter be bad to where it would work fine on shore power but not work from generator?


Circuit Breaker on generator? Location?


C. Boyd
76 Crestmont
East Tennessee
Re: House power [message #347579 is a reply to message #347549] Mon, 09 September 2019 13:26 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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Yes ,everything works on shore power. On generator, only AC and receptacles work. No power to lights or refrigerator.

I do not see another plug in the cord box.


Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach
Re: House power [message #347580 is a reply to message #347549] Mon, 09 September 2019 13:30 Go to previous messageGo to next message
Samuel Ferguson is currently offline  Samuel Ferguson   United States
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1976 Palm Beach

Samuel Ferguson Summer Hill, Illinois (West Central Illinois) 1976 GMC Palm Beach
Re: House power [message #347582 is a reply to message #347579] Mon, 09 September 2019 14:40 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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The lights and fridge work off 12 volts even the propane fridge needs 12volts for the controls and should work without being plugged in or generator working.
When the generator or plugged in the Outlets work so the converter is plugged in an outlet so you have 12 volts if the outlet the converter is plugged in to has 110 volts. Somewhere battery voltage is not getting to fuses. Is the fridge propane or all electric? What kind of converter do you have? A picture would certainly help. You can go to the top of the forum home page and post a picture using the first "sticky" post. It can be tricky as you have to follow directions exactly or maybe just tricky for me as it took me 10 years to get er done. Or you can go to photo site and register and create albums then you can go to address bar and copy and paste here. [url]http://www.gmcmhphotos.com/photos.html]
I'm still thinking you have a loose or dirty connection somewhere. Physically pull on the connections. I had a friend call and say " it won't start. I checked the connections and they are tight." I say "pull on them".



http://www.gmcmhphotos.com/photos/data/500/medium/imagejpeg_0_9.jpg


Samuel wrote on Mon, 09 September 2019 14:26
Yes ,everything works on shore power. On generator, only AC and receptacles work. No power to lights or refrigerator.

I do not see another plug in the cord box.


C. Boyd
76 Crestmont
East Tennessee

[Updated on: Mon, 09 September 2019 15:32]

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Re: House power [message #347584 is a reply to message #347582] Mon, 09 September 2019 14:58 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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Your issue should be with your house battery, not your engine cranking battery. For the heck of it hold down the battery boost switch on dash and see if stuff works. Since you have a GMC outfitted Palm Beach switch should be spring loaded and have to hold it to check stuff. Grandkids or wives are good for this.

C. Boyd
76 Crestmont
East Tennessee

[Updated on: Mon, 09 September 2019 15:00]

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Re: [GMCnet] House power [message #347592 is a reply to message #347555] Mon, 09 September 2019 18:25 Go to previous messageGo to previous message
Ken Burton is currently offline  Ken Burton   United States
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OK finally we figured out what coach and electrical system he has:
It is a 1976 Palm Beach with a 50 amp 240 volt shore power
connection.

Now you need to figure out if he is
1. moving the shore power cord correctky between the shore power and the Onan receptical.
2. If everything works correctly on shore power then everything from the shore power connector on into the coach is OK. This is because all of the same stuff is used by both shore and Onan power.
3. The problem has to be between the Onan 4 prong 50 amp receiptical, back to the Onan itself.

I would first be checking the Onan voltage at one of the house plugs for 120 VAC and around 60 cycle. If that is good I would be checking for 120VAC at the output of the circuit breaker for the converter. If that is missing, then the only other place to look is on the back of the 50 amp Onan connector for the jumper that connects the hot leads together or to one of the female connectors. You might just have a dirty or burned female connector terminal.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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