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Old 10-17-2020, 02:52 PM   #1
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THOR #13703
Water pump not supply has water

I have a 2018 Thor Miramar and the water will not run when the pump is running, I can hear the pump and the inside water gauge shows zero but the water is not running and there is plenty of water in the tank

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Old 10-17-2020, 03:38 PM   #2
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Did you check your water valve in the wet bay to make sure it is flipped to position to allow the flow of water from your tank to the pump? It should have a position to fill the tank, a position to draw water from the tank , a city water connection to allow city water to flow directly without filling the tank and a winterization position.

Paul
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Old 10-17-2020, 04:32 PM   #3
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typically you have to turn a lever to get the water thru the water pump from the water tank
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Old 10-17-2020, 09:44 PM   #4
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Yes I put it to normal
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Old 10-17-2020, 09:45 PM   #5
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Did that the control panel shows no water
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Old 10-17-2020, 09:48 PM   #6
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Quote:
Originally Posted by druganjk@gmail.com View Post
I have a 2018 Thor Miramar and the water will not run when the pump is running, I can hear the pump and the inside water gauge shows zero but the water is not running and there is plenty of water in the tank
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Originally Posted by druganjk@gmail.com View Post
Did that the control panel shows no water
Maybe fill the fresh water tank with some water??
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Old 10-17-2020, 10:03 PM   #7
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My RV has a valve at the freshwater tank to cut off the supply of water. Perhaps you have one also?
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Old 10-18-2020, 01:57 AM   #8
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Originally Posted by Bob Denman View Post
My RV has a valve at the freshwater tank to cut off the supply of water. Perhaps you have one also?
Ours does too, it cuts off the supply from the FW tank to the FW pump.
On city connection, I noticed my FW tank overflowing out the fill cap, from then on I close that valve when on city connection, and open it when not. Problem I had was solved.
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Old 10-18-2020, 10:50 AM   #9
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Your level indicator lights show no level in the tank but you have verified that the tank is full?
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Originally Posted by druganjk@gmail.com View Post
Did that the control panel shows no water
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Old 10-18-2020, 11:01 AM   #10
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It’s about 25% full
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Old 10-18-2020, 11:09 AM   #11
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I have 4 valves total

Winterizing and water source on the panel

Two more behind the panel

Check all the valves especially the ones near the pump

Be sure the valve position allows flow from the tank to the pump suction and the pump discharge is open to the coach
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Old 10-18-2020, 11:10 AM   #12
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I have it on normal which used to work
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Old 10-18-2020, 12:20 PM   #13
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I have it on normal which used to work
If nothing else changed check the pump strainer
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Old 10-18-2020, 12:34 PM   #14
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is the antifreeze valve closed? Check all connections at the pump. might be sucking air.
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Old 10-18-2020, 01:00 PM   #15
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Where is it
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Old 10-18-2020, 02:15 PM   #16
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Where is it
Most of the RV pumps have a strainer at the suction for debris left in the tank primarily

It can also be a source of a small air leak keeping a pump from priming
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Old 10-21-2020, 04:47 PM   #17
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Water supply to pump

I had a problem with water supply to pump on our 2018 Vegas. Ended up being a piece of plastic that was cut in the water tank during assembly was blocking the supply line. RV shop had to remove tank in order to remove debris from inside tank (done under warranty). Good luck.
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Old 10-21-2020, 05:06 PM   #18
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Also check the plastic strainer cup when you clean it they are pron to cracking,and hard to see the cracks .
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Old 10-21-2020, 06:15 PM   #19
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The value at the pump is off.

I had the same problem after taking my 2016 Miramar in for service and winterization. There's a quarter turn value inside the unit actually at the pump. Access was from removing a panel in one of the closets.
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Old 10-21-2020, 06:42 PM   #20
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I constantly battle with the water strainer at the pump inlet. If you tighten too tight they tend to crack and you can tell because they get wet and drip. The other issue is the seal between the clear stainer cup and the black body is junk. As a result the pump wonít prime cuz it sucks air. I find a few turns of Teflon tape on the black threads gives a good enough seal to have the pump work for a while. I took my strainer into Tractor Supply and got an o-ring that seals where the black/clear mate is. I also carry an extra strainer with me.
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