Shurflo Aqua King II Troubleshooting Guide

To troubleshoot the shurflo aqua king ii, start by checking for proper power and water supply. Then, inspect the pump for any damage or clogs. The shurflo aqua king ii is a high-quality water pump system that is ideal for use in household and recreational vehicles. However, like any other gadget, it may develop problems over time. If you encounter issues with your shurflo aqua king ii, don’t panic. Troubleshooting it is relatively easy, and you do not need to be an expert to do it. Checking for power and water supply while inspecting the pump for any damage or clogs is the first step in remedying any issue with the shurflo aqua king ii.

This article will guide you through the common problems that you may encounter while using this water pump system and how to solve them.

Common Issues With Shurflo Aqua King II

The shurflo aqua king ii is a popular water pump for boats, rvs, and other marine applications. While it’s an excellent choice for delivering reliable, high-pressure water, some common issues may arise. In this section, we’ll explore how to troubleshoot the most common issues with the shurflo aqua king ii.

Low Water Pressure

Low water pressure is one of the most prevalent issues with the shurflo aqua king ii.

  • Check the filter screens: dirt, debris, and other contaminants can clog the filter screens leading to low water pressure. Ensure that the screens are clean and correctly installed.
  • Inspect the pump for leaks: examine the pump and fittings for any leaks that can affect the water pressure.
  • Check the water source: ensure that the water supply isn’t restricted or in low volume.

Pump Not Running

If the pump doesn’t run correctly, it means that it’s not receiving power or not working correctly.

  • Check the power supply: verify that the pump is receiving power by checking the power source, breaker, fuse, or switch.
  • Check the wiring: inspect the wiring for any damage or loose connections.
  • Check the pump motor: listen for any unusual noises coming from the motor, which may indicate a malfunction. Check the motor’s thermostat switch that could have triggered the shut-down due to high temperature.

Noisy Pump

The shurflo aqua king ii is designed to operate quietly. However, if you hear unusual noises coming from the pump, you may need to diagnose the problem.

  • Check the mounting: ensure that the pump mounting screws or bolts are appropriately tightened.
  • Check the pump’s inlet and outlet fittings: loose fittings may cause vibrations leading to noise.
  • Inspect the water system: there might be air in the water lines or blockage leading to the noise. Check for any leaks or restriction in the plumbing system.

Intermittent Water Flow

The pump may sometimes deliver water intermittently instead of a steady flow.

  • Check the fresh water tank and fill hose: ensure the tank isn’t empty and the fill hose isn’t kinked.
  • Check the pump valves and diaphragm: they could be too worn for the pump to function optimally. If this is the case, replace the worn-out parts or the whole pump as needed.
  • Check the plumbing system: examine the system for any restrictions or leaks that could cause intermittent water flow.

Steps For Troubleshooting Shurflo Aqua King II

Shurflo aqua king ii is an efficient water pump that ensures smooth water supply for a variety of on-board applications. However, like all machines, it is prone to breakdowns and malfunctions. Troubleshooting the shurflo aqua king ii is essential to prevent further damages and restore its functionality.

Here are some steps to follow when troubleshooting the shurflo aqua king ii.

Turn Off The Power Supply

The first step in troubleshooting your shurflo aqua king ii is to turn off the power supply to the pump. This is important to avoid any electric shock accidents that can be fatal.

Inspect The Pump And Water System For Leaks And Damages

The next step is to inspect the pump and water system for leaks, cracks, or damages. Look for any signs of corrosion or water stains around the pump. Check that all the components of the pump are in good condition and tightly attached.

Check The Water Supply And Valve Settings

The third step is to check the water supply and valve settings. Ensure that the water supply is sufficient and that the valve settings are appropriate for the flow of water that you need.

Test The Pump Motor And Switch

If your shurflo aqua king ii is still not functioning correctly, then you may need to test the pump motor and switch. You can use a multi-meter to test the voltage to the pump motor or take it to a professional for testing.

Replace Damaged Or Worn-Out Parts

If the pump motor or switch is not functioning correctly, then you may have to replace them. Make sure that you check the pump manual or consult with a professional before attempting any replacements.

Restart The Pump And Observe Operation

After replacing damaged or worn-out parts, it is time to restart the pump and observe its operation. Make sure that it is functioning correctly and there are no signs of leaks.

By following these troubleshooting steps, you should be able to restore your shurflo aqua king ii to its optimal functionality. Remember to always consult the manual or a professional if you are unsure about anything.

Troubleshooting Tips And Tricks For Specific Issues

The shurflo aqua king ii is a reliable and high-performing water pump commonly used in rvs and boats. But like any mechanical equipment, there may be instances where you encounter specific issues with the pump. In this section, we’ll cover some troubleshooting tips and tricks for common problems you might encounter with the aqua king ii.

Adjusting The Pressure Switch

If you’re experiencing low water pressure or the pump is cycling on and off frequently, the pressure switch may need to be adjusted.

  • Turn off the power to the pump.
  • Remove the cover from the pressure switch.
  • Turn the adjustment screw clockwise to increase the pressure or counterclockwise to decrease it.
  • Replace the cover and turn the power back on.

Flushing The Water System

If you notice a foul odor or taste in your water, it’s time to flush the water system.

  • Turn off the water supply to the pump.
  • Drain all water from the system.
  • Mix a solution of one-quarter cup of bleach per 15 gallons of water.
  • Pour the solution into the fresh water tank.
  • Turn on the pump and run the solution through the system.
  • Let the solution sit for at least 4 hours.
  • Drain the solution and flush the system with clean water.

Cleaning The Impeller And Diaphragm

A clogged impeller or a damaged diaphragm can cause the pump to malfunction.

  • Turn off the power to the pump.
  • Remove the pump head from the motor.
  • Remove the impeller and diaphragm.
  • Clean the impeller and diaphragm with a soft brush and soapy water.
  • Rinse thoroughly with clean water.
  • Reassemble the pump head and motor.

Checking For Air In The Water Lines

Air in the water lines can cause the pump to lose prime or produce low water pressure.

  • Turn off the pump and close all faucets.
  • Open the drain valve on the water heater.
  • Open the cold water side of a faucet.
  • Turn on the pump and let the water run until there is a steady stream with no sputtering or air bubbles.
  • Close the drain valve and faucet.

By following these troubleshooting tips and tricks, you can keep your shurflo aqua king ii operating at its best. Remember to always follow proper safety procedures when working with any mechanical equipment.

Shurflo Aqua King Ii Maintenance Guide

The shurflo aqua king ii is a high-performance water pump that provides consistent pressure and reliable water flow. But, like all mechanical devices, it requires regular maintenance to keep it running efficiently and extend its lifespan. In this shurflo aqua king ii maintenance guide, we will cover the importance of regular maintenance, steps for cleaning and maintaining the pump, recommended frequency for maintenance, and common maintenance mistakes to avoid.

Importance Of Regular Maintenance For Longer Lifespan

Regular maintenance is crucial to keep your shurflo aqua king ii working effectively and prevent any mechanical issues. Neglecting routine maintenance can cause the pump to fail and significantly reduce its lifespan.

  • Prevents build-up of dirt and debris that can cause clogs in filters and impellers
  • Reduces chances of leaks and cracks
  • Extends the longevity of your pump
  • Maintains high performance and consistent water pressure

Steps For Cleaning And Maintaining The Pump

To keep your shurflo aqua king ii pump in excellent condition, follow these steps for cleaning and maintenance:

  • Turn off the electrical power supply to the pump.
  • Disconnect the inlet and outlet hoses.
  • Remove the filter and clean it thoroughly.
  • Check the impeller for any signs of wear and replace if necessary.
  • Check hoses for any leaks or damage.
  • Reassemble all the parts and reconnect the hoses.

Recommended Frequency For Maintenance

Frequency of maintenance depends on the usage of the pump and the water quality. However, it is recommended to perform maintenance on the shurflo aqua king ii pump every six months to keep it running smoothly.

Common Maintenance Mistakes To Avoid

Here are some common mistakes to avoid during pump maintenance:

  • Not turning off the electrical power before maintenance
  • Using harsh chemicals that can damage or corrode the pump
  • Over tightening hose clamps, which can cause leaks and damage
  • Neglecting to clean and replace the filter on a regular basis

Following the shurflo aqua king ii maintenance guide as described above can help maintain your pump’s optimal performance and extend its lifespan. Regular maintenance can also save you money in the long run by avoiding costly repairs or replacements.

FAQ For Shurflo Aqua King Ii Troubleshooting

What Could Be The Possible Reasons For Not Getting Water Flow From The Shurflo Aqua King II Pump?

Possible reasons for not getting water flow from the shurflo aqua king ii pump could include a clogged or damaged filter, low battery or voltage, a faulty pressure switch, or a damaged impeller. It is recommended to check these components and perform necessary replacements or repairs to restore water flow.

How Can I Fix The Problem Of The Aqua King Ii Pump Running But Not Shutting Off Automatically?

To fix the aqua king ii pump running but not shutting off automatically, check the pressure switch and ensure that it is set correctly. You may also need to replace the switch. Additionally, check if there are any blockages or leaks in the system.

Is It Normal For The Aqua King Ii Pump To Have Frequent Cycling On And Off? If Not, What Could Be The Cause?

Frequent cycling on and off is not normal for the aqua king ii pump. The cause could be a malfunctioning pressure switch or a clogged intake filter. Check the switch and clean the filter to resolve the issue.

How Do I Replace The Pressure Switch On My Shurflo Aqua King Ii Pump?

To replace the pressure switch on your shurflo aqua king ii pump, first turn off the power supply and the water supply. Then, remove the old switch by unscrewing it and disconnecting any wires. Attach the new switch and connect the wires before turning the power back on.

What Is The Recommended Maintenance Frequency For The Aqua King Ii Pump And What Should Be Included In The Maintenance Checklist?

The aqua king ii pump needs maintenance every three months. The checklist should include cleaning debris, checking electrical connections, and inspecting the impeller and diffuser for wear and tear. Proper maintenance can extend the life of the pump.


Troubleshooting your shurflo aqua king ii system isn’t as daunting as it may seem. By following the steps outlined in this post, you can quickly identify and solve common issues such as low flow, leaky connections, and weak pressure. Remember to start by checking the power source and ensuring proper connection, then move on to inspecting the diaphragm and other components.

Regular maintenance and upkeep of your system can also help prevent future issues. With the tips and tricks provided in this post, you can get your water pumping smoothly once again. Don’t let troubleshooting intimidate you – you’ve got this!

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