Are you having trouble with your Hunter sprinkler head not rotating? It can be frustrating to see your lawn dry out because of a malfunctioning sprinkler system. Fortunately, there are a few things you can do to troubleshoot the issue and get your sprinkler head rotating again.
Hunter rotary sprinklers operate on a gear drive system. When in operation, water turns a small turbine in the base of the sprinkler, which drives a series of gears that cause the head to rotate. However, age, excessive pressure, or poor water quality may eventually allow particles of contamination to enter the gear drive, causing the rotor to stop rotating. In this article, we will explore some of the common causes of a Hunter sprinkler head not rotating and provide some tips on how to fix the problem.
Understanding Hunter Sprinkler Heads

Explanation of Hunter Sprinkler Heads
Hunter sprinkler heads are a popular choice for residential and commercial irrigation systems. These sprinkler heads are known for their durability, efficiency, and versatility. Hunter Industries offers a wide range of sprinkler heads that are suitable for different watering needs.
Types of Hunter Sprinkler Heads

Hunter Industries offers two main types of sprinkler heads: rotary and spray heads. Rotary sprinkler heads are ideal for large lawns and gardens, while spray heads are better suited for smaller areas.
Rotary sprinkler heads operate on a gear drive system, where water turns a small turbine in the base of the sprinkler, which drives a series of gears that cause the head to rotate. Spray heads, on the other hand, are designed to spray water in a fixed pattern.
How They Work
Hunter sprinkler heads work by distributing water evenly over a designated area. The sprinkler head is connected to an underground water supply line and is controlled by a timer or controller. When the sprinkler system is activated, water is forced through the sprinkler head and sprayed out in a specific pattern.
Hunter sprinkler heads are designed to be efficient and effective. They are engineered to minimize water waste and ensure that water is distributed evenly over the designated area. This helps to prevent overwatering and underwatering, which can lead to plant damage and wasted water.
In summary, Hunter sprinkler heads are a popular choice for residential and commercial irrigation systems due to their durability, efficiency, and versatility. They offer two main types of sprinkler heads: rotary and spray heads, which are suitable for different watering needs. These sprinkler heads work by distributing water evenly over a designated area, making them an effective and efficient choice for irrigation systems.
Reasons Why Hunter Sprinkler Head is Not Rotating

If you have a Hunter sprinkler head that is not rotating, there could be several reasons why this is happening. Here are some of the most common causes:
Broken gears or bearings
If the gears or bearings inside the sprinkler head are broken or damaged, the head will not rotate. This can happen due to age, excessive pressure, or poor water quality. If this is the case, you may need to replace the entire sprinkler head.
Clogged nozzle
A clogged nozzle can also cause your Hunter sprinkler head to stop rotating. If there is debris or dirt in the nozzle, it can block the flow of water, preventing the head from rotating. You can try cleaning the nozzle with a small brush or toothpick to remove any buildup.
Dirt or debris in the sprinkler head
Dirt or debris in the sprinkler head can also cause it to stop rotating. This can happen if the sprinkler head is not properly sealed or if there is damage to the casing. You can try cleaning the sprinkler head with a small brush or toothpick to remove any debris.
Water pressure issues
If the water pressure is too low, the sprinkler head may not rotate properly. If the pressure is too high, it can damage the gears or bearings inside the sprinkler head. You may need to adjust the water pressure to ensure that it is within the recommended range.
Electrical problems
If your Hunter sprinkler head is an electric model, there may be an issue with the wiring or the control box. You can try resetting the control box or checking the wiring to see if there are any issues.
In conclusion, there are several reasons why your Hunter sprinkler head may not be rotating. By identifying the cause of the problem, you can take the necessary steps to fix it and ensure that your sprinkler system is working properly.
How to Troubleshoot a Hunter Sprinkler Head Not Rotating

If your Hunter sprinkler head is not rotating, it can be frustrating and cause your lawn or garden to dry out. However, before you call a professional, there are a few troubleshooting steps you can take to get your sprinkler head working again. Here’s a step-by-step guide to troubleshooting:
Step-by-step guide to troubleshooting
- Turn off the water supply to the sprinkler system.
- Remove the sprinkler head that is not rotating from the riser.
- Inspect the sprinkler head for any visible signs of damage or debris.
- Check the nozzle for any clogs or blockages.
- Check the gear drive mechanism for any broken gears or bearings.
- Check the water pressure to ensure it is within the recommended range.
- Check the electrical connections if the sprinkler head is motorized.
Tools needed for troubleshooting
To troubleshoot your Hunter sprinkler head, you will need a few tools:
- A pair of pliers
- A screwdriver
- A nozzle cleaning tool
- A pressure gauge
- A voltage tester (if the sprinkler head is motorized)
Fixing broken gears or bearings
If you find that the gear drive mechanism has broken gears or bearings, you will need to replace them. You can purchase replacement gears and bearings from your local hardware store or online. Follow the manufacturer’s instructions for replacing the parts.
Clearing clogged nozzle
If you find that the nozzle is clogged, you can use a nozzle cleaning tool to clear the blockage. Insert the tool into the nozzle and twist it to remove any debris.
Cleaning dirt or debris in the sprinkler head
If you find dirt or debris in the sprinkler head, you can clean it out with a screwdriver or pliers. Gently remove any debris and rinse the sprinkler head with water.
Adjusting water pressure
If the water pressure is too high or too low, it can cause the sprinkler head to stop rotating. Use a pressure gauge to check the water pressure and adjust it to the recommended range.
Checking for electrical problems
If the sprinkler head is motorized, you should check the electrical connections. Use a voltage tester to check the connections and make sure they are secure.
By following these troubleshooting steps, you can get your Hunter sprinkler head rotating again and keep your lawn or garden healthy and hydrated.
Frequently Asked Questions
How do I know if my Hunter sprinkler head is not rotating?
If you notice that your Hunter sprinkler head is not rotating, it is easy to tell. Simply look at the head while it is in operation. If it is not rotating, then you have a problem. You may also notice that your lawn or garden is not getting the water it needs, which can be a sign that your sprinkler head is not rotating properly.
Can I fix the problem myself?
Yes, you can fix the problem yourself in most cases. However, it is important to note that some issues may require professional help. If you are not comfortable working on your sprinkler system, then it is best to call in a professional.
What tools do I need to fix the problem?
To fix a Hunter sprinkler head that is not rotating, you will need a few tools. These tools include a Hunter wrench, pliers, a flathead screwdriver, and a clean cloth. You may also need a replacement nozzle or rotor if the problem is severe.
How much does it cost to fix a Hunter sprinkler head that is not rotating?
The cost to fix a Hunter sprinkler head that is not rotating can vary depending on the severity of the problem. In most cases, it will cost between $50 and $200 to fix the problem. However, if you need to replace the entire sprinkler head, then the cost can be higher.
How often should I maintain my Hunter sprinkler heads?
It is recommended that you maintain your Hunter sprinkler heads at least once a year. This will help ensure that they are working properly and that your lawn or garden is getting the water it needs. Regular maintenance can also help prevent problems from occurring in the first place.
Conclusion
Recap of the reasons why a Hunter sprinkler head may not rotate
In this article, we have discussed the various reasons why a Hunter sprinkler head may not rotate. The most common reasons include age, excessive pressure, or poor water quality that can allow particles of contamination to enter the gear drive. Additionally, debris buildup and incorrect adjustment of the nozzle turret can also cause the sprinkler head to stop rotating.
Importance of regular maintenance
Regular maintenance is crucial to ensure that your Hunter sprinkler heads continue to function correctly. It is recommended to inspect and clean the sprinkler heads at least once a year to prevent debris buildup and contamination. Additionally, adjusting the nozzle turret correctly and ensuring proper water pressure can help prevent issues with rotation.
Final thoughts
If you notice that your Hunter sprinkler head is not rotating, it is essential to address the issue promptly. Ignoring the problem can lead to further damage and potentially costly repairs. By understanding the common causes of rotation issues and performing regular maintenance, you can ensure that your sprinkler system continues to operate efficiently.
Remember to always follow the manufacturer’s instructions when adjusting and maintaining your Hunter sprinkler heads. With proper care and attention, you can enjoy a lush and healthy lawn without any issues with your sprinkler system.
Sprinkler Expert