Maytronics Dolphin W 20 - Operation, Storage, and Troubleshooting; Remote Control Unit

Robotic Pool Cleaner W 20 | User Instructions
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Replace the screws.
6.4 Cleaning the impeller
If you notice debris trapped in the impeller open the impeller and remove the debris.
CAUTION
Unplug the power supply.
Using a screwdriver, remove the screws on the
impeller cover and remove it.
Clear any debris that may be in the impeller.
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No. 2
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