Running water is a cherished luxury in the RV and camper lifestyle, providing one of the most fundamental comforts of home amidst the great outdoors. This essential amenity doesn't just flow by the force of some miracle, though; it relies on well-functioning equipment to keep things running smoothly.
Water pressure in your RV is created with an electrical water pump—a pump that's prone to run into some issues from time to time. When it does, your entire camping experience just might get turned on its head.
The reality for many is that RV water pump failure can be the start of a mechanical nightmare. It's an especially intimidating problem because you’re most likely to face it in the middle of a trip with no clue where to start looking for solutions.
Thankfully, troubleshooting RV water pumps isn’t all that complicated once you know what signs to look for. In this guide, we'll delve into some of the most common water system issues, their potential causes, and how you can get yours back up and running.
Start By Checking the Basics
The first step in addressing any RV water issues is to check the basics. Before delving into complex repairs (and unnecessary expenses), ensure everything is functioning correctly.
Begin by verifying that the power source is connected and operational. Then, inspect the water tank and hookups to ensure they are filled and functioning correctly. If your RV has been in storage, check that all shut-off valves are open. Additionally, inspect the surroundings for any signs of leaks.
If the pump has been run dry, it may need priming—removing trapped air and filling it with water for proper operation. If priming doesn't resolve the issue, the pump may indeed be the source of the problem.
RV Water Pump Troubleshooting
Once you determine the pump is the culprit, the next step is to diagnose the specific issue you’re facing. Fortunately, there are only so many ways an RV water pump can fail, and the repairs are typically straightforward. What's more, you often won't need to replace the entire pump outright—many pumps are serviceable, and only specific parts may need replacing.
Let's get into some of the more common scenarios to help you identify what you're up against.
Keep in mind: The service process for each pump can vary based on its model, so always defer to the manufacturer's instructions for the specific pump you're dealing with before attempting any repairs. Don’t hesitate to seek professional help or advice if you are not comfortable with working on these systems yourself.
Pump Doesn’t Turn On
In the case that your RV water pump doesn't turn on at all, start by checking its power source. Ensure the fuse is intact and sending power to the line. Verify that all wires are properly connected and without any breaks. Additionally, make sure the battery has enough power, as some systems won’t work if it’s below 12 volts.
If power is going to the pump but it still won’t turn on, then it’s time to inspect the pressure switch. Are there any signs of damage? How do the electrical connections look? Ensure the switch itself is operational and receiving power. If all these checks reveal that power supply is not the issue, then it’s likely you need a new pump.
Pump Stays Running After Water is Turned Off
If your RV’s water pump continues to run even after the water has been turned off, or if it cycles on and off erratically, then it's a good sign your pressure switch is at fault. The pressure switch detects changes in water pressure within the system and controlls the pump's operation accordingly. Any defects or inaccuracies in detecting pressure changes can lead to improper pump behavior.
Before picking up a replacement switch kit however, there are a few things to check. First, verify that the pressure switch’s adjustment settings (if applicable) are correctly configured according to the manufacturer's specifications. Sometimes, it really is as simple as incorrect pressure settings causing improper pump operation.
Next, inspect the plumbing for leaks. You may have missed one earlier during your basic systems check, and this can create the same symptom as a faulty switch. One key sign to look for if you suspect a leak is a pulsating effect when the water is running.
It's also possible that the pump's settings require an adjustment. However, making changes to pressure, flow rate, or other operational aspects is dependent on the model, and may require some technical knowledge or expertise.
Pump Runs, But No Pressure
A pump that runs but doesn’t produce pressure is your cue to open up the pump and inspect its condition. If everything is rusted up, severely worn out, or parts are broken, then it’s a good sign that the head assembly needs to be replaced.
Rebuild kits are also available for many pumps and are an excellent solution if damaged seals or diaphragms are the source of your issue. So long as they are available to the pump you have, these are repairs you can do yourself with some basic tools. However, seeking professional help at this point is generally your best bet if you’re not mechanically inclined.
Low Water Pressure
Low water pressure can also indicate that the pump needs to be inspected. But before you open it up, take a look at the water filter. Your freshwater filter should be replaced every six months, to avoid it clogging up and causing problems. Even if it's recently been serviced, you should inspect it before the pump, as it's still a likely cause of low water pressure issues.
Pump is Making a Lot of Noise
A noisy water pump will drive many RV and camper owners nuts. Thankfully, the fix might be as simple as double-checking the fasteners that hold it in place.
Improper installation or fasteners that have come loose over time can lead to a noise problem. Poor insulation and worn or missing isolators can also be the problem. If these are all in check, however, a lot of noise can mean the pump is on its way out and needs to be serviced or replaced.
Shopping for a New RV Water Pump
If after troubleshooting your RV water pump issues, you realize it’s time for replacement, consider that it might also be time for an upgrade. Today's market offers a range of options, from whisper-quiet operation and reduced power consumption, to water pressure akin to your home's system.
While selecting a pump that matches your RV's specifications is crucial to avoid compatibility issues, you might be surprised by what your rig can accommodate. Consult your RV’s manual for guidance and explore Parts Via’s selection of quality pump replacements from trusted brands like Shurflo, Flojet, Remco Industries, and Aqua-Pro.
Additionally, when installing a new RV water pump, don't forget to replace any wires, hoses, and fixtures. Parts Via offers a variety of accessories from Teknor Apex/Zero-G, Camco, Elkhart Supply, and Valterra to ensure a seamless upgrade process.