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Old 07-03-2007, 08:58 AM   #1
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WOW, trying to find a ground for the water pump is challenging. Woke up the other night and the pump light was on, tried to turn it off with no succes. Checked pumpconection and no ground, trace wires up into the abiss of the coachs under belly no luck. Have a call into NRV looking for the ground connection for the water pump. Grrrrrrrrrrr, why can't anything be simple on these things
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Old 07-03-2007, 08:58 AM   #2
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WOW, trying to find a ground for the water pump is challenging. Woke up the other night and the pump light was on, tried to turn it off with no succes. Checked pumpconection and no ground, trace wires up into the abiss of the coachs under belly no luck. Have a call into NRV looking for the ground connection for the water pump. Grrrrrrrrrrr, why can't anything be simple on these things
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Old 07-03-2007, 10:28 AM   #3
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Steve, Does the pump work?
How many other switches control the pump power?
Is the ground you are looking for just for the switch light?
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Old 07-04-2007, 04:11 PM   #4
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there are 3 switchs, all are lite.
The pump does not work.
there is no ground to the pump.
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Old 07-06-2007, 08:32 AM   #5
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Steve:

Is there any noise when the pump is suppose to run? (Listening at the pump.) Our pump is immediately behind the water distribution pannel. Being a new Pacifica, I'd let it be fixed under warraty.

If needed in emergency, it is easy to hot wire. Disconnect the pump then connect to a DC source. You can use the power from a basement light to power the pump until you can get to the dealer. If you are dry camping, you will need to be a little more creative, so you don't run your battery down.

If your pump makes a slight noise, and does not pump, be sure all the valves on the water distribution pannel are set right. If one of them is just 5 degrees rotated, it will NOT pump water.
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Old 07-08-2007, 07:58 AM   #6
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I dont know if Our Tropical is the same but I found a control box in the water closet that all the pump switches lead into and then to the waterpump. I found it by accident when fixing leaks and adding 90s to kink supply lines...
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Old 07-08-2007, 06:04 PM   #7
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thanks guys, all are very good suggestions. When I was dumping Saturday to leave Maine, I heard the pump activate, we used it to load the toilet seveal times to charge the black tank. When we went down the road a few miles no more pump, I know its a loose ground somewhere. But where? I will be taking the coach to the dealer, the service writer told me they are really backed up, I told him I was supposed to leave for Branson on Thursday "I NEED MY PUMP"
I hope I don't have to put on my gorilla suit with these guys. Grrrrrrrrrrr
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Old 07-08-2007, 06:11 PM   #8
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Steve, if you're sure it's a grounding problem, you can add your own from the water pump mounting bolt, etc. to a chassis ground point on the coach. Ground is ground. PM for more info.
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Old 07-08-2007, 06:14 PM   #9
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I have thought of that Bill, but was warned about adding another ground to that circuit, something about possably blowing out any printed circuit boards tied to that ground plan.
I hate electric stuff///////////////
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Old 07-11-2007, 06:19 PM   #10
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The water pump is fixed, my dealer replaced a module that controls all the switch functions to the water pump, and now she works, wierd stuff I would say, even had the dealer techs scratching their heads for a while. The module was never fastened to a wall or the bottom of the floor as it was designed. So it got wetted down a few times, and the contacts corroded, and then, pop goes the module, again, stupid build practices!!!! Another unneccesary failure. Grrrrrrr
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Old 07-11-2007, 09:46 PM   #11
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Hey, I noticed that too! I had the plumbing service panel off just to look around and I saw the pump control module just floating around in there (actually just sitting on the plywood deck). I addded a screw and all is well.

Probably all National owners should check this.
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Old 07-12-2007, 05:40 AM   #12
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Anybody want to follow up with the factory on this?
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Old 07-13-2007, 04:14 AM   #13
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Bill,
This is what I E mailed this AM to NRV.

Hello Matthew,

A few of our members at Irv2.com National RV Owners Forum have had problems with there water pump switch control module located behind the water service panel.



First the common problem appears that the module is just lying inside the compartment and not attached to any structure.



Second in this environment that is susceptible to moisture the connection can corrode and have cause a shorts and required replacement of the module.



Any input from you NATIONAL RV would be greatly appreciated.



Thank You

Richard Snapp
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Old 07-13-2007, 05:21 AM   #14
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Answer from NRV

Mr. Snapp,

I can not say, I have heard of this issue. At this point I can only pass on the input to production for their evaluation.


Matthew Margolis
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