Dolphin M400 Troubleshooting

If you are having problems with your Dolphin M400 Pool Cleaner, you are not alone. Many Dolphin M400 owners experience issues with their pool cleaner from time to time, and it can be frustrating to deal with these problems.

I have problems with my Dolphin M400 View Dolphin M400 Manual

Dolphin M400 Pool Cleaner Problems

What should I do if the power supply or switch of my Dolphin M400 is not functioning?

If you find that the power supply or switch of your Dolphin M400 is unresponsive, consider these troubleshooting steps:

  • Check the Power Source: Ensure that the power socket is functioning and that there is voltage. You can test the socket with another device to confirm.
  • Verify Connections: Make sure that the power supply is securely plugged in and that the power cable is properly connected to the inlet. A loose connection can prevent the unit from powering on.
  • Reset the Power Supply: Turn off the power supply, wait for about 30 seconds, and then turn it back on. This can sometimes reset the system and restore functionality.

What actions should I take if my Dolphin M400 Pool Cleaner does not move and the power supply shows a red light?

If your Dolphin M400 is stationary and the power supply indicates a red light, follow these steps:

  • Inspect the Cable Connection: Ensure that the blue floating cable is securely connected to the power supply. A loose connection can prevent the cleaner from operating.
  • Check for Blockages: Look for any debris that may be obstructing the impeller, tracks, or wheels. Clear any found obstructions to allow for movement.
  • Ensure Sufficient Water: Make sure the cleaner is fully submerged in water. If it is out of water, it will not operate.

Why is my Dolphin M400 Pool Cleaner moving in circles?

If your Dolphin M400 is moving in circles, consider the following troubleshooting tips:

  • Clogged Filter: A clogged filter can affect the cleaner’s navigation. Clean the filter to ensure proper water flow.
  • Debris in the Impeller: Check for any debris stuck in the impeller house or impeller cover. Remove any obstructions to restore normal movement.
  • Power Supply Position: Ensure that the power supply is positioned correctly so that the cleaner can reach all areas of the pool. An incorrect position can lead to erratic movement.

What should I do if my Dolphin M400 does not turn or only moves in one direction?

If your Dolphin M400 is not turning or is only moving in one direction, try these solutions:

  • Check for Debris: Inspect the impeller house and cover for any debris that may be causing the issue. Clear any blockages to allow for proper movement.
  • Inspect the Tracks: Ensure that the tracks are not obstructed. Any debris stuck in the tracks can prevent the cleaner from turning effectively.
  • Power Supply Check: Make sure the power supply is functioning correctly and is positioned to allow the cleaner to navigate the entire pool area.

What can I do if my Dolphin M400 moves but does not clean the pool?

If your Dolphin M400 is moving but not effectively cleaning the pool, consider the following:

  • Clogged Filter: A clogged filter can hinder cleaning performance. Clean the filter to ensure optimal operation.
  • Debris in the Impeller: Check for any debris stuck in the impeller house or impeller cover. Remove any obstructions to improve cleaning efficiency.
  • Check Water Conditions: Ensure that the pool water is within the appropriate chemical levels. Improper water conditions can affect cleaning performance.

Why does my Dolphin M400 only clean part of the pool?

If your Dolphin M400 is only cleaning part of the pool, here are some steps to troubleshoot:

  • Power Supply Positioning: Ensure that the power supply is positioned correctly to allow the cleaner to reach all areas of the pool. An improper position can limit its range.
  • Floating Cable Length: Check that there is enough slack in the blue floating cable for the cleaner to reach all corners of the pool. Adjust the cable as necessary.
  • Clean the Filter: A clogged filter can restrict the cleaner’s ability to navigate effectively. Clean the filter to enhance its performance.

What should I do if the blue floating cable of my Dolphin M400 has kinks?

If you notice kinks in the blue floating cable of your Dolphin M400, follow these steps:

  • Stretch the Cable: To remove kinks, stretch the floating cable out completely and let it sit in the sun for at least a day. This can help to relax the cable and eliminate kinks.
  • Inspect for Damage: Check the cable for any signs of damage. If the cable is frayed or damaged, it may need to be replaced.
  • Ensure Proper Storage: When not in use, store the cable properly to prevent kinks from forming in the future.

Why is my Dolphin M400 not climbing the walls?

If your Dolphin M400 is struggling to climb the walls, consider these troubleshooting tips:

  • Check the Filter: A clogged filter can affect the cleaner’s ability to climb. Clean the filter to ensure optimal performance.
  • Inspect Water Chemistry: Ensure that the pool water’s pH level is appropriate. Improper chemical levels can lead to algae growth, making walls slippery and difficult to climb.
  • Debris in the Impeller: Look for any debris stuck in the impeller house or impeller cover. Clear any obstructions to improve wall-climbing ability.

What should I do if my Dolphin M400 Pool Cleaner is not sinking?

If your Dolphin M400 is not sinking properly, consider the following solutions:

  • Check the Brushes: If your cleaner is equipped with brushes that contain sponges, ensure that the brushes are soaked in water. If they are dry, dip them in water and squeeze to allow them to absorb water before use.
  • Inspect for Air Trapped: Sometimes, air can get trapped in the cleaner, preventing it from sinking. Ensure that the cleaner is fully submerged and that there are no air pockets.
  • Weight Adjustment: If the cleaner is still not sinking, check if it requires additional weights. Some models may have options for adding weights to help with sinking.

What should I do if the remote control for my Dolphin M400 is not working?

If the remote control for your Dolphin M400 is unresponsive, try these troubleshooting steps:

  • Check the Batteries: Ensure that the batteries in the remote control are not depleted. Replace them if necessary.
  • Power Supply Connection: Make sure the power supply is plugged in and turned on. If the power supply is not functioning, the remote control will not work.
  • Pairing Issues: If the remote control is not paired with the robot, turn off the remote and attach it to the power supply. Press both the right and left direction control arrows simultaneously until you hear two beeps, indicating successful pairing.

What should I do if my Dolphin M400 starts and then stops?

If your Dolphin M400 starts cleaning but then stops unexpectedly, consider the following troubleshooting steps:

  • Check for Blockages: Inspect the impeller, tracks, and wheels for any debris that may be obstructing movement. Clear any found obstructions to allow for continuous operation.
  • Power Supply Issues: Ensure that the power supply is functioning correctly. Check that it is plugged in, turned on, and that the blue floating cable is securely connected.
  • Overheating Protection: The cleaner may have an overheating protection feature that causes it to stop if it gets too hot. Allow it to cool down for a while before attempting to restart.
  • Inspect the Filter: A clogged filter can cause the cleaner to stop working. Clean the filter to ensure proper water flow and operation.

Dolphin M400 Replacement Parts

Troubleshooting a Dolphin M400 Pool Cleaner

Share your Dolphin M400 Pool Cleaner Problems, issues , tips, ideas, and frustrations with other owners.

  1. Wont connect to app. Green snd blue light blinks on power supply

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  2. M400 powers on and vacuums pool for 10min then stops. Blue power light is on but no movement. Cleaned propeller still stops.

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    Reply
  3. 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

    Reply
  4. 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

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  5. blue on light turns to red after a minute, M 400, what is the issue>

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  6. power supply will only come on if you unplug cable going to cleaner

    Reply
  7. only runs for approx 45 minutes from start of cleaning cycle ( impellor and filters clean and new cable fitted by agent)

    Reply

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