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10-14-2009, 03:19 PM
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#1
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Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
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Slide outs stopping
I did a search, but couldn't come up with the past posts about the slides stopping when bringing them in. Our 4th slide will occasionally trip the circuit breaker as it is coming in and I would like to know the solution.
Thanks in advance.
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10-14-2009, 05:23 PM
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#2
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Montana Master
Join Date: Apr 2009
Location: Ardrossan
Posts: 729
M.O.C. #9261
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Of the many times we have used our slides with no problems, it happened to us on a cold morning, 28 degrees and a low battery. All three came in successfully and the big slide only came in part way and stopped. Waited a few seconds and last slide came into its final position. Our batteries indicated about 1/2 to 2/3 power on the panel so evidently as the voltage drops the amps will go up! With four slides that that little motor for the hydraulic system likely developed enough heat to drop out on overload. With fully charged batteries or shore power there would have been no problem!!
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10-14-2009, 05:33 PM
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#3
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Montana Master
Join Date: Sep 2006
Location: Kelowna
Posts: 1,475
M.O.C. #6237
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When our slide started acting up the dealer added a second breaker in parallel. We haven't had a problem since.
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10-15-2009, 03:16 AM
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#4
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Montana Master
Join Date: Nov 2005
Location: Paola
Posts: 5,739
M.O.C. #4961
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I know the official fix was to parallel a second breaker. However i think I would just replace the breaker. Adding a second Breaker makes that a 100 amp circuit and the wiring is not heavy enough for that. Those type breakers are known to get weak. We use those is our shop to protect the emergency equipment installed in the police cars and we have to change those on a regular basics because they get weak.
__________________
Dennis & Linda Ward
Paola, Kansas
Montana 3735MK Legacy Edition
1200 watts of Solar
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10-15-2009, 06:20 AM
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#5
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Montana Fan
Join Date: Jun 2007
Location: Gardners
Posts: 183
M.O.C. #7316
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Go back to Oct 4th in this section. I posted the question and got good info. You need a 50 Amp Hi-Amp Circuit Breaker. If you don't want to parallel, this is what the dealers are using to correct the problem.
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10-15-2009, 01:55 PM
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#6
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Montana Master
Join Date: Sep 2007
Location: Texas City
Posts: 5,736
M.O.C. #7673
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In a parallel circuit, the voltage across each of the components is the same, and the total current is the sum of the currents through each component.
They may be presently fixing the problem with a newer Hi-amp circuit breaker, but the total current going through the wires is going to be high if the voltage drops.
Check your grounding wire from the pump and make sure it is grounded properly. Some have reported an improperly grounded pump motor, and that would cause the voltage to drop and the current to go up. Lippert informed my dealer when we had the 3400 in 2008 to add a parallel breaker that Lipper provided. It solved the problem.
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10-16-2009, 02:27 PM
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#7
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Seasoned Camper
Join Date: Jul 2009
Location: hopewell
Posts: 98
M.O.C. #9444
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our 07 5ver md. 3295 started stopping and starting and would eventually go all the way in or out. dealer in va. recommended replacing the breaker and cleaning the ground wire connection. i replaced the breaker and removed the ground from the camper and cleaned the area of all paint. so far so good.
happy camping
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paddler
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10-16-2009, 05:00 PM
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#8
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Montana Master
Join Date: Oct 2004
Location: Gardnerville
Posts: 749
M.O.C. #2165
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Wayne, if you're talking about breakers in parallel, then (we hope) the resistance of the breakers is zero, and the voltage drop (or loss of voltage to the circuit) is zero. Then, the load on the battery is the motor and the current in the circuit is determined by the power the motor is using. Same current whether you have one or a dozen breakers in parallel.
I think it's better to replace the breaker than to put them in parallel because you could draw a lot of current before the breaker would trip.
Bob
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10-17-2009, 04:38 AM
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#9
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Montana Master
Join Date: Jan 2006
Location: South
Posts: 2,499
M.O.C. #5140
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Thanks for the info, everyone.
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10-17-2009, 06:00 AM
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#10
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Montana Master
Join Date: Aug 2007
Location: Waterford
Posts: 3,693
M.O.C. #7500
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I replaced the 50 amp on ours with two forty amp breakers in parallel and the slide outs have never worked so well!
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10-17-2009, 08:16 AM
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#11
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Montana Master
Join Date: Dec 2006
Location:
Posts: 2,376
M.O.C. #6575
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I'm with Tom on this one. The pump is rated at 100 amps. The wire is #6 copper, rated at 101 amps for chassis wiring. My pump is less than two feet from the battery, and the wiring is not enclosed in a bundle or loom. At 100 amps draw, there will be less than .2 volts drop in the circuit.
The loose ground may cause the pump to not operate, but it would be from low amps, not excessive amp draw. Ever get in the old truck, turn the key, and only the solenoid would click? Get out, find a loose or corroded connection, fix it, try it again and the starter worked just fine. You just fixed a high resistance problem which caused low current flow.
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