Rotors are sprinkler heads that rotate to water larger areas.
Rotor replacement means installing a compatible rotor, setting height and alignment and adjusting arc and radius.
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Signs You May Need This Repair
- Rotor stuck in one direction
- Rotor turns erratically
- Damaged rotor
- Dry spots between rotors
Common Causes
- Worn or stripped gears
- Debris
- Mower or traffic damage
- Age
How a Technician Handles It
- Inspect rotors while the zone runs
- Check pressure
- Replace failed rotors with compatible models
- Set arc and radius
- Check coverage
Repair or Replace?
Rotors with worn gears are usually replaced. If several rotors stall, pressure should be checked first.
DIY or Call a Pro?
Swapping a rotor is manageable for some homeowners, but matching models and adjusting coverage takes experience.
Typical Cost
See our Sprinkler Head Replacement Cost Guide for typical ranges. Prices vary by location, parts, access and how much diagnosis is needed.
Related Problems
- Why Isn’t My Sprinkler Rotor Rotating?
- Why Does My Lawn Have Dry Spots Even With Sprinklers?
- What Should I Do About a Broken Sprinkler Head?
Related Repairs
Frequently Asked Questions
Why do rotors stop turning?
Worn gears, debris or low pressure.
Should a stuck rotor be replaced?
Usually, if the gears are worn.
Do new rotors need adjustment?
Yes. Arc and radius need to be set for coverage.
Bottom Line
Rotor replacement restores coverage when rotors stop turning. Checking pressure first makes sure the new rotors work properly.
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