Dolphin EON 120d Robotic Pool Cleaner with DebrisLock Backwash Filter and SmartMap Navigation for In-Ground Pools up to 50 ft LOW-SUCTION Error Fix: Reduced Suction Power

Error code LOW-SUCTION on the Dolphin EON 120d Robotic Pool Cleaner with DebrisLock Backwash Filter and SmartMap Navigation for In-Ground Pools up to 50 ft means: Reduced Suction Power. The robot has noticeably less suction than normal — caused by a full filter, clogged impeller, worn impeller blades, or a partially blocked intake port; clean the filter and impeller first, then inspect impeller blades for wear

The most successful fix is "Inspect and Replace Worn Impeller Blades" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Inspect and Replace Worn Impeller Blades") is rated medium difficulty and takes about 45 minutes. Tools needed: T20 Torx screwdriver, Needle-nose pliers.

DIY cost: $10-$20. Professional repair typically costs $120-$180. Many homeowners save money by trying the top-ranked community fix first.

The Dolphin EON 120d Robotic Pool Cleaner with DebrisLock Backwash Filter and SmartMap Navigation for In-Ground Pools up to 50 ft has 8 other known error codes, including: APP-CONNECT (App Connection Failure), BRUSH-STOP (Brushes Not Spinning), BRUSH-WORN (Worn Scrubbing Brushes), CABLE-CORROSION (Cable Connector Corrosion), CABLE-DAMAGE (Cable Deterioration), and 3 more.

Error code LOW-SUCTION also appears on 8 other Dolphin models: E10 Automatic Robotic Pool Vacuum Cleaner with Active Scrubber Brush and Top Load Filters for Above-Ground Pools up to 30 ft, Liberty Cordless Battery-Powered Robotic Pool Cleaner with Multi-Layer Filtration for In-Ground Pools up to 40 ft, Nautilus CC Plus Wi-Fi Robotic Pool Vacuum Cleaner with Wall Climbing and Scrubber Brush for In-Ground Pools up to 40 ft, Nautilus CC Robotic Pool Vacuum Cleaner with Scrubber Brush for In-Ground Pools up to 33 ft, Premier Robotic Pool Cleaner with Smart Navigation and Multi-Media Filtration for In-Ground Pools up to 50 ft, Proteus DX3 Robotic Pool Cleaner with Active Scrubber Brush and Wall Climbing for In-Ground Pools up to 33 ft, and 2 more. The fix may vary by model, so check each model's specific page for tailored repair steps.