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Old 10-28-2017, 09:58 PM   #15
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I think you should have water present at the pump even if the pump is inoperative
The water is gravity fed to the pump .
You have a check valve at the pump but I don't know where yours is actually
located , it's job is to not let water flow backwards into the tank when on city
water .
The check valve can stick closed and there is not a lot of pressure trying to
push thru it especially with just a half full tank .

My Windsor has several switches around the coach to turn on the pump ,
I assume you have tried them all .
Those switches actuate a latching relay and mine located on the bay wall
just above the pump .

BTW have you been in any freezing weather ?
might not take much to stop the pump and water flow .

Ray
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Old 10-28-2017, 09:59 PM   #16
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Quote:
Originally Posted by TonyDi View Post
I had this same problem this summer. Turn out there is a screen filter on the front end of my pump (never knew it was there). I just replaced the filter and Tada!! It's working.


Glad you posted this. Iíve had these screens plug up many times over the years in various locations. Everyone should check all your water connections to know if you have any. If so, check them regularly.
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Old 10-28-2017, 10:05 PM   #17
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Mine isn't gravity fed. The outlet on the water tank is as low as the pump, and three bays away.
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Old 10-28-2017, 10:42 PM   #18
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We have a 2003 Monico Windsor.
Have not been successful in changing our signature.
Pump does not run as there is no water. From my understanding pump comes on as water is flowing. There is no water at the pump, holding tank is 1/2 full at the moment.
The pump will still run with no water in tank....

The pump comes on when 12v power is supplied by one of your several pump switches in the coach and in the water bay.
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Old 10-28-2017, 10:54 PM   #19
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Mine isn't gravity fed. The outlet on the water tank is as low as the pump, and three bays away.


Does your inlet supply (pex etc) run directly from your tank (bottom of the tank) to your pump? Does the line ever run higher than the level of water in the tank? If it does not, there should be water in that line. I would bet your pump is gravity fed or should be.
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Old 10-28-2017, 11:23 PM   #20
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Yes, line goes up to bay ceiling height, then down to pump on bay floor, 3 bays away.
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Old 10-29-2017, 01:41 PM   #21
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Quote:
Originally Posted by 96 Wideglide View Post
Mine isn't gravity fed. The outlet on the water tank is as low as the pump, and three bays away.

I decided to go out and check my pump again
With my input fitting disconnected I let the water run and it ran
for approx 10 min with out slowing down but the DW was saying
come on we need to go so I thought it best to go .
The flow may have been siphoning rather than gravity flowing
but I remembered that flow from back when installing a new pump
and believed it was gravity flowing .
Didn't have time to follow the plumbing so mine may go up and over
also .
I'll try to look at that later .
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Old 10-29-2017, 01:50 PM   #22
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Quote:
Originally Posted by 96 Wideglide View Post
Yes, line goes up to bay ceiling height, then down to pump on bay floor, 3 bays away.
You're describing a siphon, which is gravity powered. Your pump should be able to pull with enough suction to start the siphon, which would continue with the pump action. Just be sure to have a faucet open to let air escape until the water gets into the pump.
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Old 10-29-2017, 01:53 PM   #23
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There should be a relay and inline fuse close to water pump, I would start there, disconnect pump wires & check for power, could be a loose connection or bad relay.
Good luck
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Old 10-29-2017, 04:25 PM   #24
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We also have an 03 Windsor , pump will run until pressurized -look in your 2nd bay on right side - inside bay on the left midship are 2 smoke color sliding glass doors, have a flashlight and inside the enclosed compartment are your water filters, all on and off water switches--start by changing both filters than track from your tank line lines to the pump -- you"ll find your problems
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