The Dolphin M400 has a total of 8 reported issues across 3 categories. The most common categories are Technical Malfunctions (4 issues) and Performance (3 issues). Frequently reported problems include the unit powering on but stopping after about 10 minutes, along with connectivity issues indicated by a red power light. Users also note the robot’s slow movement and short cleaning cycles of approximately 45 minutes, raising concerns about battery life and mechanical efficiency. Significant trends suggest recurring movement failures and operational inconsistencies, pointing to potential internal component issues or design flaws in the device.
Dolphin M400 Troubleshooting
Most Common Dolphin M400 Reported Problems
Technical Malfunction Issues
Multiple users report issues with the Dolphin M400, primarily related to movement failures, connectivity problems, and operational inconsistencies, often despite attempts to troubleshoot and clean the device.
- Movement Failures: Several users indicate that the M400 powers on and begins to vacuum but stops after a short period (around 10 minutes). This issue is frequently reported and persists even after cleaning the propeller and filters.
- Power and Electrical Issues: Users have noted that the blue power light turns red after a brief period, suggesting potential electrical faults. Additionally, some users report that the device does not connect to the app, with blinking green and blue lights on the power supply, indicating connectivity problems.
- Flashing Lights and Malfunctions: Instances where the unit powers on with flashing lights but fails to move have been reported, indicating potential internal component failures or motor issues.
- General Failure to Operate: A common theme is the inability of the unit to function correctly, with users stating that it turns on but remains stationary, regardless of cleaning attempts or checking for blockages.
Power and Charging Issues
Performance Issues
Multiple users report issues with the Dolphin M400, primarily related to its operational efficiency, movement speed, and debris management, often despite attempts to troubleshoot and maintain the device.
- Short Cleaning Cycles: Users indicate that the Dolphin M400 only operates for approximately 45 minutes per cleaning cycle, even with clean impellers, filters, and a new cable installed, suggesting potential issues with battery life or internal components.
- Slow Movement: There are consistent reports of the robot moving extremely slowly compared to previous years, which may indicate wear and tear on the motors or other mechanical components affecting its mobility.
- Debris Management Issues: Some users experience problems with debris falling back into the pool during operation, raising concerns about the effectiveness of the flap or the need for adjustments to prevent this from occurring.
- User Troubleshooting Attempts: Users have attempted to clean the unit and check for blockages, but these efforts have not resolved the issues, pointing to potential deeper mechanical or design flaws.
Setup and Usage Issues
Customer Support Issues
Other Issues
Troubleshooting Your Dolphin M400: Manufacturer's Recommendations
Power and Battery Issues
Dolphin M400 – No Response After Power On
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Movement and Operation Issues
Dolphin M400 – Red Light on Power Supply
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Dolphin M400 – Moving in Circles
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Dolphin M400 – Not Turning or Moving in One Direction
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Dolphin M400 – Not Climbing Walls
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Dolphin M400 – Not Sinking
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Performance Issues
Dolphin M400 – Moving but Not Cleaning
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Dolphin M400 – Only Cleaning Part of the Pool
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Remote Control Issues
Dolphin M400 – Remote Control Not Working
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Operational Issues
Dolphin M400 – Starts and Then Stops
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Dolphin M400 Pool Cleaner Not Working?
If you're experiencing issues with your Dolphin M400 pool equipment, you're not alone. Many users have faced similar challenges and have shared their experiences to help others troubleshoot and resolve these problems.
M400 was working.(no App connect) Pulled out to clean filters put back in now not working,,
Issue Category:
Technical Malfunctions
Ownership Length:
More than 2 years
only runs for approx 45 minutes from start of cleaning cycle ( impellor and filters clean and new cable fitted by agent)
Issue Category:
Performance
Ownership Length:
N/A
Submit Your Own Issuepower supply will only come on if you unplug cable going to cleaner
Issue Category:
Power and Charging
Ownership Length:
N/A
blue on light turns to red after a minute, M 400, what is the issue>
Issue Category:
Technical Malfunctions
Ownership Length:
N/A
Dolphin supreme M5 also known as the dolphin m400 when I clean the pool pull it up to stuff fall in back to the pool what could be the issue could it be the flap is open or should I block something so that the stuff doesn’t fall let me know
Issue Category:
Performance
Ownership Length:
N/A
My Dolphin M400 works and picks up things in the pool / however it moves extremely slow. In past years – it moved fairly quickly across the pool. Not sure what I need to do
Issue Category:
Performance
Ownership Length:
N/A
M400 powers on and vacuums pool for 10min then stops. Blue power light is on but no movement. Cleaned propeller still stops.
Issue Category:
Technical Malfunctions
Ownership Length:
N/A
Wont connect to app. Green snd blue light blinks on power supply
Issue Category:
Technical Malfunctions
Ownership Length:
N/A