Fresh Water Pump

[Montana_1794]

Our water pump works fine when using the water faucets and flushing of the toilet. But at random it kicks on for a second or so. This morning the times were 7:50 am, 8:02 am, 8:17 am, 8:28 am,8:37 am. and 8:45 am, etc.

Has anyone experienced this and if so what causes this?? When we leave during the day I turn it off completely.

Also, thanks to all who responded to the hide-a-bed mattress issue.

[kdeiss]

Sounds like you may have small leak like maybe a faucet. It is trying to maintain pressure

[Gene Chaltry]

I would say that if the pump kicks in you have a leak somewhere. That has been my experience with RV's anyway. Hopes this helps.

[MuddyPaws]

It doesn't have to be a leak in a faucet. It could be a leak in the pump itself allowing pressurized water to bleed back through the pump.

It's been my experience that they all do this eventually.

[Montana_1794]

What is the process to check the pump for a leak? Are they repairable or does it have to be replaced?

Thanks for responding - these problems can be very frustrating.

quote:Originally posted by MuddyPaws

It doesn't have to be a leak in a faucet. It could be a leak in the pump itself allowing pressurized water to bleed back through the pump.

It's been my experience that they all do this eventually.

[thundercat]

If the pump is bleeding pressure back to the fresh water tank an easy fix is to add a check valve in the line just before the pump.

[Chester]

Mine has done the same thing over the past few months. I looked all over for a leak and couldn't find one. Eventually I noticed that the water flow from the pump was starting to lessen. At one point the pump couldn't build enough pressure anymore to shut itself off. For a weekend we had to manually turn the pump on and off when we needed water. The fix was simple....replaced the pump. All is well again.

[sreigle]

I believe these pumps have a diaphragm that can crack or somehow get a pinhole leak that will leak pressure and cause the periodic short runs of the pump to restore the pressure. RV dealers should have a kit to fix this. It's been a long time since I did it but it was not a hard fix other than getting the pump out of it's home can be a bear sometimes.

The other possibility is a water leak somewhere, like others said. This might be just about anywhere there's a water line, including in the belly.

[BillyRay]

anytime you have a drop in pressure it will kick on. in our older units the would do the same.