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Pool skimmer plays an important role in keeping your water clean and clear by absorbing surface debris, such as leaves, insects, and dirt, before it sinks to the bottom. But like any other part of your pool system, skimmers can have problems that affect your pool’s cleanliness and filtration performance. Whether it’s weak suction or unusual noises, understanding the problem is critical to keeping your pool running optimally.
In this guide, we’ll examine the most common pool skimmer problems and show you how to effectively fix them.
Common Problems with Traditional Pool Skimmers
Low or no skimmer suction
Possible causes:
Clogged swimming pool skimmer basket
Sediment in the skimmer line
Air leak in the suction line
Clogged pump basket or impeller
To fix this problem:
First, remove and clean the pool skimmer basket. Even small amounts of dirt can affect water flow.
Use a drain cleaning cable or skimmer line blower to clear debris stuck in the suction line.
Inspect the pump cover O-ring and suction hose connection for leaks. Apply silicone lubricant or replace cracked O-rings.
Clean the pump filter and check if the impeller is clogged, as this may affect suction performance.
The pool skimmer doesn’t suck water
Possible causes:
The water level is too low
Skimmer flapper is stuck closed
The valve not adjusted correctly
To fix this:
Make sure the water level in the pool is at least halfway up the skimmer opening. If it’s too low, the skimmer won’t suck water properly.
Make sure the skimmer flapper isn’t stuck or clogged. Loosen or replace if damaged.
If your pool has multiple suction ports, make sure the valves on the skimmer lines are open, not just the valve on the main drain.
The skimmer basket keeps floating
Possible causes:
Air pockets under the basket
Dust prevents the basket from sitting properly
The basket type not suitable for your skimmer model
Solution:
Make sure the basket is fully secured to the bracket.
Clean the basket thoroughly and remove branches and leaves from underneath.
If the problem persists, weigh the basket down with small rocks (placed in a mesh bag) or look for a basket with built-in weights.
Skimmer has cracks or leaks
Possible causes:
Freezing temperatures (in cold climates)
Structural loads or movement in the pool foundation
Long-term wear and tear
Solution:
For smaller cracks, use epoxy pool putty or a vinyl patch kit to seal the cracks.
If there is significant structural damage or persistent leaks, contact a specialist – the skimmer may need to be replaced
Troubleshooting Robotic & Automatic Pool Skimmer
Robotic Pool Skimmer Does Not Move or Charge
Solution:
Check Sunlight: If you use a solar pool skimmer, make sure it is exposed to direct sunlight for a few hours each day. These devices require solar modules to operate and charge the internal battery.
Clean Charging Contacts: Dirt, algae, or mineral deposits on the contact points can affect proper charging. Clean them carefully with a soft cloth or brush and mild soap.
Reset System: Many models have a reset button or require you to hold the power button for a few seconds to restart the system. This can fix internal software errors.
Check App Status (if supported): For app-controlled models, open the companion app to check for alerts such as “Low Battery,” “Motor Error,” or “Blockage Detected.”
Automatic Pool Skimmer Can’t Find Dirt or Navigate Properly
Solution:
Empty the Dirt Tray: A full drip tray reduces suction and navigation performance. Clean regularly to ensure optimal performance.
Check Propellers or Air Intake: Debris such as hair, string, or small branches can get tangled in the motor or propellers and affect the performance of the device. Disassemble and clean these parts as needed.
Update firmware (if applicable): Some skimmers get performance improvements or bug fixes by applying updates. Keep your device up to date.
Remap pool shape: If the AI-based smart model misses areas or repeats actions, it may need to relearn the pool shape. Reset route settings if available.
Robotic Skimmer gets stuck in corners or steps
Solution:
Adjust the angle of the return nozzles: Return nozzles can create a directional flow that keeps the surface skimmer away from corners. Position them where they will allow water to gently push against the surface.
Install bumpers or deflectors: Many models come with optional accessories to prevent the device from getting caught on ladders or pool steps. Make sure they are installed correctly.
Remove physical obstacles: Toys, floating thermometers, or uneven surfaces near the skimmer’s path can impede movement.
Bonus Tip: Pool Skimmer Nets Still Matter
Even with high-tech solutions, a good pool skimmer net is still a must-have for quick cleanups. Use it to remove large floating debris that could clog or block both traditional and robotic skimmers.
Conclusion
Whether you use a simple pool skimmer basket, a powerful robotic pool skimmer, or a simple pool skimmer net, proper maintenance and quick troubleshooting are essential to a clean pool surface and smooth operation of your filtration system. By identifying and resolving issues, you can prevent bigger problems later. Regular maintenance will not only extend the life of your skimmer, but will also ensure that your pool water remains clear and swimmable all season long.
One Reply to “Troubleshooting Common Pool Skimmer Problems”
I bought the RPS100A last year and it worked well last year. Unfortunately that is not the case this year. I charged it and turned it on, but nothing happens except the continuous flashing blue light. I tried the troubleshooting tips but nothing worked. It is frustrating that I can not find anything in the manual or on the site that addresses this problem.