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Old 06-14-2015, 10:36 AM   #1
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Water pump running

Every few minutes I hear my water pump come of for one second or so. I have looked high and low for a leak, drip etc. Is there any reason other than a small leak that this would happen?
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Old 06-14-2015, 10:43 AM   #2
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Keep looking for that leak - in the meantime, it could be the valve body in the pump leaking back. You can find parts for that pump online.

Tim
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Old 06-14-2015, 10:43 AM   #3
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Quote:
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Every few minutes I hear my water pump come of for one second or so. I have looked high and low for a leak, drip etc. Is there any reason other than a small leak that this would happen?
Maybe the pump is leaking down or loosing pressure in it? May need a new pump?
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Old 06-14-2015, 12:33 PM   #4
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Every time this has happened to me it has been the small 1/4" tubing to the icemaker. This has probably happened 5-6 times. The way the hose has to come to the solenoid water valve seems to have stressed the tubing. I have since added a short wire braided piece of hose and put a loop in it & zip tied it in place so the plastic tubing is straight.
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Old 06-15-2015, 10:08 AM   #5
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The best sure fire way is to take to somebody that knows and have them pressure test your system. I have the tool to do it, and I'm in Tucson. You need the tool, and an air source. I've done it quite a few times, I was a RV tech for almost 10 years.
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Old 06-15-2015, 10:45 PM   #6
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As suggested...look at the icemaker.
If no icemaker, do you have a reverse osmosis on board.
This system needs to maintain pressure.

Lastly......you did not say why you have the pump on.
Are you hooked up to city water or boondocking?
If on city water, why are you running the pump?
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Old 06-16-2015, 12:38 PM   #7
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Disconnect the output hose from the pump and cap the hose end. Turn the pump on and if it still does it, it's the internal diaphragm leaking back. If it doesn't do it, you have a small leak in the lines somewhere.
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Old 06-16-2015, 01:49 PM   #8
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Every few minutes I hear my water pump come of for one second or so. I have looked high and low for a leak, drip etc. Is there any reason other than a small leak that this would happen?

In my rig, if the fresh water tank is really low or empty the water pump will do the same thing or just run continually.
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Old 06-17-2015, 08:23 AM   #9
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Great advice from all. Will report in when I get to it.
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Old 06-18-2015, 10:13 AM   #10
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Another common source of the leak is the city water inlet, which has a check valve. The check valve may have a slight drip, which may go unnoticed but is enough to cause pressure loss. One simple test is to screw a hose plug into the inlet and see if that stops the pump cycling. If it does, replace the city inlet - it's easy enough and they aren't expensive.
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Old 06-18-2015, 10:29 AM   #11
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Keep looking for that leak - in the meantime, it could be the valve body in the pump leaking back. You can find parts for that pump online.
Tim

An internal leak in the valve body of the pump itself will not leak/drip water to the outside where it can be seen, (but it will cause the pump to run intermittently).
Pump valve repair kits are available for most RV water pumps.
Mel
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