Why Your RV Water Pump Keeps Running

RV water pumps are essential for enjoying the comforts of home on the road. But what happens when your RV water pump keeps running, even when no faucets are open? This constant cycling can be annoying, drain your battery, and potentially damage your pump. Here’s a breakdown of the common culprits and how to troubleshoot them.

Common Reasons for a Continuously Running RV Water Pump

• Low Water Pressure: Insufficient water in your tank is a prime suspect. The pump struggles to build pressure, leading to continuous operation. Ensure your tank is adequately filled.
• Leaks: Even a small leak in your RV’s plumbing system can cause a pressure drop, forcing the pump to constantly work. Check faucets, connections, and pipes for any signs of moisture. Don’t forget to inspect the toilet valve and shower fixtures.
• Faulty Check Valve: The check valve prevents water from flowing back into the freshwater tank when the pump is off. A malfunctioning check valve allows water to flow backward, requiring the pump to continuously compensate.
• Air in the System: Air trapped within your plumbing can mimic a leak, causing the pump to cycle. Bleed the air from your lines by opening each faucet, starting with the one closest to the pump, until a steady stream of water flows.
• Worn Pump Components: Over time, parts within the water pump, such as the diaphragm or pressure switch, can wear down. This can lead to inaccurate pressure readings and continuous pumping.
• Loose Fittings: While rare, loose fittings or plumbing connections are often the cause of the leak.

Troubleshooting Steps

1. Check Water Level: The easiest first step. Is your tank full?
2. Inspect for Leaks: Visually examine all accessible plumbing connections, faucets, and fixtures for leaks.
3. Bleed the Lines: Open each faucet, one at a time, until the water runs smoothly without sputtering.
4. Listen for Leaks: If you can’t see any obvious leaks, listen carefully for hissing sounds near plumbing connections.
5. Test the Check Valve: While more complex, you can often test the check valve by removing it and inspecting it for debris or damage. A replacement may be necessary.

If you’ve exhausted these troubleshooting steps and your RV water pump still won’t stop running, it’s time to call in a professional. Don’t let a persistent plumbing issue dampen your travel plans. Contact us for reliable assistance!

For quick and reliable RV plumbing repair, trust the experts. Get a free quote today with Roadwise RV Plumbing Repair!