Not Returning to Dock
Dolphin Robotic Pool Cleaner
Severity:What Does This Error Mean?
The Dolphin robotic cleaner finishing in the middle of the pool rather than at the wall for easy retrieval is usually caused by the cleaning cycle time not matching the pool size, or a firmware setting. Some Dolphin app-connected models have a Lift mode that brings the cleaner to the wall at cycle end — enable it in the Dolphin app if available for your model.
Affected Models
- Dolphin Nautilus CC Plus
- Dolphin Active 60i
- Dolphin Quantum
- Dolphin S300i
- Dolphin Supreme M600
Common Causes
- Cleaning cycle duration is too short for the pool size, ending mid-pool
- Lift mode (dock return feature) is available but not enabled in the app
- Pool size setting in the app does not match actual pool dimensions
- Navigation sensors have drift affecting the return path
How to Fix It
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Open the Dolphin app and check the pool size setting. Set the correct pool length and width so the cleaner can calculate an appropriate cleaning pattern and cycle duration.
An undersized pool setting results in a short cycle that ends before the cleaner has navigated back to a convenient retrieval point.
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Enable Lift mode if your model supports it. In the Dolphin app, go to Cleaning Settings and look for Lift or End Position. Enable it to instruct the cleaner to return to the wall at the end of a cycle.
Lift mode is available on Wi-Fi enabled Dolphin models (Active 60i, S300i, Quantum, and others). It is not available on models without app connectivity.
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If the cleaner consistently finishes on one side of the pool, check for cable tension pulling it in that direction. Adjust the cable float and ensure equal cable slack on all sides.
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For older models without app connectivity, the cycle duration is fixed. If the cleaner always ends in an inconvenient spot, try starting it from a different position in the pool.
Frequently Asked Questions
Can I pick up the Dolphin cleaner while it is still running?
Yes, but it is best practice to turn it off at the power supply first. Lifting an active Dolphin can damage the impeller if air is introduced suddenly. Press the stop button on the power supply, wait for the impeller to stop spinning (a few seconds), then lift the cleaner by its handle.