Shurflo Sprayer Pump Troubleshooting

To troubleshoot a shurflo sprayer pump, check for power supply and clogged nozzle, and inspect the wiring system. Shurflo sprayer pumps are some of the best choices for manual and automatic spraying operations, thanks to their high-quality construction and reliability.

However, even with their top-notch features, they may encounter some challenges that require immediate troubleshooting. This article outlines some common shurflo sprayer pump troubleshooting and offers insights on how to identify them and fix them. Whether you are experiencing reduced flow rate, abnormal noise, or poor spray coverage, we have got you covered. With the following tips and tricks, you can restore your pump’s performance and prolong its life expectancy without spending a fortune on professional assistance.

Understanding Shurflo Sprayer Pump Components

Shurflo sprayer pumps are known for their outstanding performance and longevity, but like any other equipment, occasional issues may arise. Understanding the different components of the shurflo sprayer pump is critical in identifying and resolving problems. In this article, we’ll explore the various parts of the shurflo sprayer pump and how they function.

Pump Housing And Motor

The pump housing and motor are the heart of the shurflo sprayer pump, and they work together to create the pressure necessary for spraying. The housing is made of durable materials and is specially designed to accommodate the internal components of the pump.

The motor, on the other hand, powers the pump and creates the pressure required for spraying.

Pressure Switch

The pressure switch is a critical component of the shurflo sprayer pump and is responsible for controlling the on/off switch of the pump. This switch ensures that the pump operates at the appropriate pressure levels, preventing damage to the machinery and controlling the flow rate of liquid in the system.

Water Inlet And Outlet

The water inlet and outlet on the shurflo sprayer pump govern the inflow and outflow of liquid in the system. The pump’s inlet provides an entry point for water, while the outlet discharges the liquid out through the pump’s nozzle. These two components play a vital role in ensuring adequate flow rates throughout the system.


A strainer is a filter component that prevents debris and other unwanted particles from entering the pump. Without a strainer, the pump’s internal components may be clogged, resulting in malfunctioning or damage to the machinery. Periodic cleaning of the strainer is required for the smooth functioning of the sprayer pump.

Control Valves

Control valves are adjustable devices that regulate the flow rate and pressure of the liquid in the shurflo sprayer pump system. The pump’s control valves enable the user to modify how much liquid flows through the pump at any given time, as well as the direction of the flow.

Understanding the components and functions of the shurflo sprayer pump is necessary for troubleshooting and maintaining the equipment. Routine checkups and cleanings of the pump’s components help prevent problems from occurring and extend the pump’s lifespan. By following these tips, shurflo sprayer pumps can provide you with years of reliable use.

Common Shurflo Sprayer Pump Issues

Shurflo sprayer pumps are an essential tool for many people, making it easy to spray pesticides, herbicides, or even water over large areas. However, like any mechanical device, it is not uncommon for problems to arise. Knowing how to troubleshoot these issues can save you from purchasing a new pump or paying for a repair.

In this article, we will cover the most common shurflo sprayer pump issues and how to fix them.

Check And Clean The Strainer To Ensure It Is Not Blocked

One of the most common problems with shurflo sprayer pumps is a clogged strainer. The strainer acts as the first line of defense against debris and contaminants that would otherwise clog up the pump and cause damage.

  • Turn off the pump
  • Locate the strainer
  • Remove the strainer and clean it with water
  • Reinstall the strainer

Inspect The Hoses And Fittings For Damages

Another common issue with shurflo sprayer pumps is compromised hoses and fittings. Cracks, leaks, or damaged parts can cause a loss of pressure and negatively impact the pump’s efficiency. To avoid this issue, you should regularly inspect the hoses and fittings for damages and replace them as needed.

Check The Voltage Levels Of The Pump Motor

Low voltage levels can cause issues with the pump’s motor, resulting in low water flow. It is essential to make sure that the voltage levels are consistent and in the appropriate range. A multimeter can measure voltage levels, and if it is low, you may need to seek professional assistance.

A Seized Pump Motor

A seized pump motor can cause significant problems, and it is an issue that requires immediate attention. If you experience this issue, you should discontinue using the pump immediately and seek a replacement or professional repair.

Faulty Inlet/Outlet Seals

Inlet and outlet seals are responsible for preventing water from leaking out of the pump. If they become faulty, they can cause pressure loss and reduce the pump’s efficiency. To address this issue, you should inspect the seals regularly and replace them as needed.

Cracked Pump Housing

A cracked pump housing is a severe issue that can cause significant problems with the pump’s operation. This issue could cause leaks or damage to the pump’s various components. If you detect a cracked pump housing, it is best to replace it completely.

Damaged Hoses And Fittings

Any damage to the hoses and fittings can impact the pump’s efficiency and performance. Therefore, regular inspection and replacing of damaged parts are essential.

It is important to address issues with your shurflo sprayer pump as soon as they arise. With proper maintenance and regular inspections, you can minimize the risk of failure and extend the pump’s lifespan.

Troubleshooting Shurflo Sprayer Pump Issues

Common Shurflo Sprayer Pump Issues

Shurflo sprayer pumps are known for their durability, reliability, and outstanding performance. However, even the best pumps may encounter issues that need troubleshooting to maintain their effectiveness.

  • Pump leaks or fails to prime
  • Pump runs dry or loses pressure
  • Pump motor doesn’t run or is noisy
  • Low flow rate or poor spray pattern
  • Accumulation of residue or debris in the pump
  • Worn out or broken parts
  • Electrical issues

To avoid downtime and maintain the efficiency of your shurflo sprayer pump, here are some tips for troubleshooting common pump issues:

1. Check The Pump Intake

  • Ensure that the intake valve is free from debris, dirt, or any objects that may be blocking it.
  • Check the inlet hose for kinks, cracks, or leaks that can reduce water flow to the pump.
  • Verify that the inlet screen is not clogged with debris by cleaning it or replacing it if necessary.

2. Check The Pump Housing

  • Inspect the pump housing for cracks, loose fittings, or leaks that can cause loss of pressure or lead to pump failure.
  • Tighten all fittings, clamps, and seals to prevent suction or pressure leaks.
  • Check that the housing is free from debris and residue that may clog or damage the pump.

3. Check The Motor

  • Verify that the motor is connected to a reliable power source and that the electrical connections are tight.
  • Check the wiring for any signs of damage or wear.
  • Ensure that the motor is not overloaded or overheated by checking its amperage and temperature readings.

4. Check The Spray Nozzle And Boom

  • Verify that the spray nozzle is not clogged with debris or residue by cleaning it or replacing it if necessary.
  • Inspect the boom for cracks, leaks, or damage that can reduce the flow rate or affect the spray pattern.
  • Adjust the spray pattern and flow rate as needed by changing the nozzle size, pressure, or angle.

5. Check The Pump Parts

  • Inspect the pump parts, such as the diaphragm, check valves, impeller, and o-rings, for wear, tear, or damage.
  • Replace any damaged or worn-out parts to ensure smooth operation and prevent downtime.

By following these troubleshooting tips, you can resolve common shurflo sprayer pump issues and maintain the performance and longevity of your pump. Remember to always refer to the pump manual for specific maintenance instructions and safety precautions.

FAQ For Shurflo Sprayer Pump Troubleshooting

What Causes The Shurflo Sprayer Pump Not To Turn On Or Run Continuously?

The most common cause is a clogged inlet strainer or a damaged pump motor. Check and clean the strainer or replace the motor.

Why Is The Shurflo Sprayer Pump Unable To Prime Or Losing Prime?

There could be multiple reasons, including low voltage, a clogged nozzle or spray tip, high suction lift, or worn-out pump parts.

What Is The Best Way To Prevent Shurflo Sprayer Pump From Overheating?

Make sure to frequently clean and maintain the pump, avoid running it dry, and never operate it for extended periods without input fluid flow.

How Often Should I Replace The Shurflo Sprayer Pump’S Diaphragm?

It depends on the usage and condition of the pump, but a good guideline is to replace the diaphragm every 6 months to a year.

How Do I Determine The Correct Shurflo Sprayer Pump Size For My Application?

Consider the desired flow rate and pressure needed for your specific application, and match it with the pump’s performance curve.


The shurflo sprayer pump is a critical component in the agricultural industry. Any issue with the pump can cause significant damage to the crops and businesses. Therefore, troubleshooting the pump is a vital activity to keep it running smoothly. In this blog, we have discussed the common problems that the shurflo sprayer pump encounters and the ways to troubleshoot them.

From clogged nozzles to motor issues, we have covered it all. Understanding the problem and fixing it yourself is not only cost-effective but also empowers you to maintain your equipment better. Therefore, by regularly checking and maintaining the sprayer pump, you can prevent potential issues and ensure consistent performance.

Always remember to follow safety protocols while troubleshooting. By following the steps outlined in this blog, you can reduce downtime and maintain a healthy pump.

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