Now what?! - Fiberglass RV


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Old 08-27-2012, 12:36 AM   #1
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Now what?!

So I was checking out my water pump and all was well; then I lost power. Since I'm hooked up at my house, I know I have electricity. What do I do to ensure power to my pump?
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Old 08-27-2012, 01:10 AM   #2
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If you mean that you ran the pump and it was working and then it stopped working then I'd suspect a blown fuse.

As has been said by others many times, for this sort of situation an inexpensive digital multi-meter is invaluable for trouble shooting. Check the circuit, terminal by terminal, and find out where you have power and where you don't. I have lab quality meters but for most use my $8 meter that I carry in the trailer works just fine.

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Old 08-27-2012, 01:22 AM   #3
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Is your pump 12 volt? If so having house power only matters if you also have a converter that runs your 12 volt off of house power when plugged in.

Sudden loss of power makes me think fuse also, but I would also make sure you have interior 12 volt power sufficient to run the pump. As in the battery is not dead. Sometimes it's the little things that trip me up so I thought I would mention it.
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Old 08-27-2012, 04:27 AM   #4
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I agree with Ron and Roger. First check the fuse. Then a few measurements with a meter should locate problem. My pump has terminals for easy removal. A voltage measurement there will tell if it is the pump or the supply. Raz
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Old 08-27-2012, 07:27 AM   #5
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A good tool to own is a 12 volt test light. It has a pointy end that can temporarily stab into a wire and an alligator clip that goes to ground.

In this case, you could have stuck the pump wire with the pump turned on and verified power to the pump.

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Old 08-27-2012, 07:44 AM   #6
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How to use a multimetre
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Old 08-27-2012, 08:15 AM   #7
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Originally Posted by Cam A View Post

Good resource. I guess I need a sharp end for my multimeter.
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Old 08-27-2012, 09:05 AM   #8
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Originally Posted by dykim18 View Post
So I was checking out my water pump and all was well; then I lost power. Since I'm hooked up at my house, I know I have electricity. What do I do to ensure power to my pump?
I feel compelled to ask, so I apologize ahead of time but...
Are you aware that the pump stops automaticly when it reaches full pressure? Did it quit with the tap open?
Also... Not sure if the Casita has a switch on the side of the cabinet but could you have accidently shut it off?
Manipulate the switch a couple of times to be sure, but maybe it needs a new switch?
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Old 08-27-2012, 11:16 AM   #9
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Floyd,
I turned on the pump switch in front of the sink and let the water come out. Then the pump went silent. I turned on the switch again but no response. The faucets were check both in open and closed mode. There is water in the reserve tank. I am going to check if the pump is getting electricity with a meter. Really weird...
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Old 08-27-2012, 11:16 AM   #10
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Oh, and the fuse is fine.
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Old 08-27-2012, 02:55 PM   #11
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Sounds like you have multi-meter scavenger hunt in your future. They tend to be annoying as all get out but solvable by process of elimination.

Two things never seem to fail, if I start testing at one end the problem is at the other end, and it's always the last place I check..... of course I stop looking there since I found it.

Good luck. Let us all know what you find.
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Old 08-28-2012, 01:08 PM   #12
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I agree, in the end it'll probably be the multi-meter that points to the problem.

I have one other trouble shooting weapon in my tool box. It's considered low brow by some but on occasion has worked for me. I use a rubber hammer or my fist or anything else handy to give items like water pumps with internal switches a whack. Sometimes switches can have contacts that aren't making good contact and a little whack will make them seat and start the device. Doesn't fix the problem but points out what the problem is. And if the small hammer doesn't work I use a bigger hammer

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Old 08-28-2012, 08:35 PM   #13
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All that or nothing.... It turns out that the pump was fine after all. I didn't know that once the water pressure is at its max, the pump automatically turns off until I start using the water. Well, this rookie has just learned yet another lesson in RV maintenance. Thanks everyone for your suggestions!
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Old 08-28-2012, 10:43 PM   #14
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All that or nothing.... It turns out that the pump was fine after all. I didn't know that once the water pressure is at its max, the pump automatically turns off until I start using the water. Well, this rookie has just learned yet another lesson in RV maintenance. Thanks everyone for your suggestions!
I see Floyd was right again!!! Dont worry we have all been there done that and more often than not its Floyd who is the master of guessing the cause!
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