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Old 07-06-2014, 07:51 PM   #1
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HELP!!!

2007 Holiday Rambler motor coach with no 12 volt power! I've checked everything I know to check. Fuses, breakers, solenoid switch please help getting ready to leave for vacation.
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Old 07-06-2014, 07:53 PM   #2
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Welcome to IRV2.


I don't know about the Holiday Rambler but our Tiffin Allegro Open Road has a 12V cut off switch by the entrance door.

Jon
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Old 07-06-2014, 07:56 PM   #3
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HELP!!!

Does it start? Coach batteries okay as far as voltage? Have a tester/voltmeter? If batteries are ok, work out to problem. As above, check the battery shut off switch. Ours has two.


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Old 07-06-2014, 09:28 PM   #4
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As jfran304 stated there should be a salesman switch at the entrance that could be thrown or could have failed check that first.
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Old 07-07-2014, 07:02 AM   #5
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The salesman switch is not usually the problem. The real problem is usually the power relay that the switch controls. They are notorious for failing. A real good fix is to find the power relay and just transfer the hot (battery lead) to the load side and forget about the switch. It sure cures a lot of problems.
Good luck and safe travels!
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Old 07-07-2014, 10:51 AM   #6
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You have two 12v power systems. Chassis and house.

Both not working?
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Old 07-07-2014, 11:05 AM   #7
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We just went through something similar. Just our outlets were not working. Everything else was; washing machine, microwave, air con. , etc... all worked fine. In our case it turned out to be a transfer switch in the inverter.

We looked for the problem for several months because it was intermittent and getting worse. If you look at my old posts you will see it in depth with lots of suggestions for me. One of those might work for you if is not the inverter.

Good luck, I know how frustrating it is.
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Old 07-07-2014, 12:07 PM   #8
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You might want to check the GFI electrical outlets in the Bathroom sink and Kitchen areas. If they tripped you will not have power to outlets and the converter box. At least that is what happened in my MH, Hope that helps

Richard
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Old 07-07-2014, 02:32 PM   #9
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Quote:
Originally Posted by richs050 View Post
You might want to check the GFI electrical outlets in the Bathroom sink and Kitchen areas. If they tripped you will not have power to outlets and the converter box. At least that is what happened in my MH, Hope that helps

Richard
That is such a strange way to wire a coach. Are you sure that your power to the converter box was lost when the GFI tripped. In my coach the inverter box output goes directly to the bathroom GFI if it trips almost all of the receptacles in the coach are dead but the inverter is still active. The way mine is wired it would be easy to think the converter is dead but it is before the GFI not after it.
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Old 07-07-2014, 03:47 PM   #10
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The OP is talking about losing 12 volt power not 120 volt power. GFI's don't have anything to do with the 12 volt system.

Chuck
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Old 07-07-2014, 03:50 PM   #11
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http://www.metrotrekkers.org/utility/electrical.htm

Is this RV new to you? Do you have the operators manual? They are about 240 pages long.

Twelve volts starts at the large battery bank that is charged by a large inverter/charger. There are two large cutoff switches in the battery compartment. The power flows through the cutoff switches, one to the engine section and the other for the 12 volt electrical items.

The power goes forward into a panel below the driver on the outside. Inside the large panel on the bottom left is a large cutoff solenoid often referred to as the "salesman solenoid/switch". This solenoid is controlled by a switch near the door. It may say Bat Cut off. If pressed it should light and you should hear the solenoid go clunk. If you do hear it clunk and you still don't have lights then there is a good chance the solenoid is bad. A very common issue. Give the thing a hard wrap from the back of a screwdriver to see if it comes alive. If it does there is a simple bypass procedure. You can use a voltmeter or test light of course if you have one. I would buy a test light in any case. With a test light it should light up on both sides of the large solenoid. The large bolts/wires that is.
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Old 07-07-2014, 03:51 PM   #12
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Hi There,
Yes While at an RV Park our 110 Receptacles on the passenger side of the coach quit working and our 12v lights were getting dimmer. I checked the Converter located in the basement compartment next to the entry door for a reset button and checked all of the breakers and found all to be ok. After scratching my head a bit I called Ron's Mobile RV Service in Chico, CA and he told me to check the GFI by the bathroom sink and sure enough It had been tripped off which turned all of the 110 Receptacles off on that side, one of which was the one our converter was plugged into. All was fine after that and I was very happy I did not have to have a mobile service call

Richard
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