Troubleshooting · Use & Maintenance
How do I clean a clogged impeller on my Liberty?
Short answer: Follow the cleaning steps for your Liberty's safety clip setup, and confirm all LEDs are off before inspecting the impeller.
Take your Dolphin Liberty out of the pool, turn it off, and check whether it came with an impeller Cleaning Safety Clip before choosing the steps below.
Based on Maytronics support, updated 2026-05-04, rewritten by Poolbots' pool experts. Parts that fix it are below.
The fix
Step by step.
Caution: This robot is battery-powered. Follow the instructions for your version exactly, in the order shown.
Without an impeller Cleaning Safety Clip
Start with your Dolphin Liberty out of the pool and switched off.
- Switch your Dolphin Liberty on.
- Let 3 seconds pass, then switch it off.
- Wait 30 seconds. Before continuing, confirm that all LEDs are off and none is blinking.
- Lift the Liberty's top cover and take out the filter basket.
- Check the impeller for visible debris and remove any you can see.

With an impeller Cleaning Safety Clip
Start with your Dolphin Liberty out of the pool and switched off.
- Attach the charger to the robot.
- Do not continue until the blue LED has stopped blinking.
- Wait 30 seconds. Before continuing, confirm that all LEDs are off and none is blinking.
- Lift the Liberty's top cover and take out the filter basket. Leave the charger connected throughout cleaning.
- Make sure the top cover is open and the filter basket is removed.
- Put the impeller Cleaning Safety Clip in place.
- If you cannot reach the debris, use a screwdriver to unscrew the screws on the top cover.
- Slide the impeller cover backward to free it.
- Remove debris caught around the impeller. Be careful: the impeller blades are sharp.
- Refit the impeller cover, then take out the impeller Cleaning Safety Clip.
- Put the filter back and shut the lid.
For other robots, use the appropriate guide below.
Source: Maytronics support. Same steps and facts, rewritten for clarity; the videos and illustrations are Maytronics' own.
Replacement parts
Parts that fix this.
This answer comes down to filters and motor units & impellers. The exact part depends on the model: choose your robot and we open its parts list, or browse the category for every model.
Browse by category:FiltersMotor Units & Impellers All genuine Dolphin parts →
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