ATF: Cyclone - Water Pump Pulsing Sound

We have a 2017 Cyclone Model 4250 and we wanted to make sure that our water pump was working properly. We filled the tank and switched on the water pump. We ended up turning all of our faucets on as to purge the lines, but the water pump has made three different sounds. One, when the water is running. Two, when there is not water running, the best way to describe sound is a pulsing sound. Three, is a totally different sound that almost sounds like a growling sound.
We are not sure what the problem may be. We have water and pressure, but the noise will not stop. Any suggestions would be greatly appreciated.
 

danemayer

Well-known member
Hi tmechler7492,

Welcome to the Heartland Owners Forum.

Water pump problems like this need to be investigated promptly as it could indicate a water leak. And of course a water leak that's allowed to continue can cause damage to your rig.

The water pump has a pressure switch built in. When you open a faucet, the pressure on the switch drops, signaling the pump to start. When you then close the faucet, the pressure increases, signaling the pump to stop.

The water pumps can be noisy when running normally. A brief duration growling noise can occur when it starts up or stops.

The pulsing represents a problem with maintaining pressure on the switch in the pump. This could be caused by a problem with the switch or how it's adjusted (adjustable on some pumps). But it's more likely that there's a loose fitting somewhere allowing water to leak.

I'd suggest you locate the pump - often located behind the rear wall of the pass through basement storage and check the fittings connecting to the pump. While in there, inspect every other water connection you can see.

If you can't find the cause and stop the pulsing, you'll need to get help.

And if you're currently traveling, you should turn the pump off except when you intend to use it. I understand this can be inconvenient, but if you have a leak, it's important to minimize the possibility of damage.

If you're not the first owner and your rig has had an in-line check valve installed on the output side of the pump by a previous owner, that can contribute to pulsing and the check valve should be moved to the suction side of the pump.
 

Bob&Patty

Founders of SoCal Chapter
To add to what Dan said. You might have a loose hose or fitting on the "suction" side before the pump.
 
Well after hours of trying to figure out the issue, and reading responses from ya'll, we think we may have found the issue. After pulling the strainer off we discovered a rubber seal that must of blown loose. Now we need to locate where the rubber seal come from. Thank you everyone for your help.
 
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