Troubleshooting · Power & Connectivity

My Power Supply Unit does not work properly

Most asked From Maytronics support, updated 2026-04-26, rewritten for clarity. Parts that fix it are below.

The fix

Step by step.

If your Power Supply stops working, trips the GFCI outlet, or does not turn on at all, follow these troubleshooting steps to help diagnose and resolve the issue:

Step 1Check the Power Source

  • Let's ensure that the issue is not originating from your home outlet. Try plugging the power supply into a different verified, working outlet or by disconnecting any extension cord that may be in use.
  • If the power supply still does not turn on, we can move on to the next step.

Step 2Inspect the Blue and Black Cables

  • Examine the blue cable and the black power supply cord for any visible signs of damage, such as cuts, kinks, or frays.
  • If you find any cable damage, the cable should be replaced. Submit a warranty claim or visit your nearest dealer if you purchased from a local dealer.
  • If both cables appear to be in satisfactory condition and free from any damage, proceed to the next step.

Step 3Determine the Source of the Issue

Now let's identify whether the problem lies with the Dolphin's Motor, the Cable(s), or the Power Supply itself. To do this:

  1. Disconnect the blue cable from the Power Supply Unit.
  2. Plug the Power Supply Unit into a functioning electrical outlet.
  3. Now, turn on the Power Supply Unit without reconnecting the blue cable.

Step 4Does the Power Supply Unit turn on and stay on?

After following the previous steps, does the Power Supply Unit turn on and stay on?

If the Power Supply turns and stays on, the issue is not with the Power Supply. There may be an issue with the Dolphin's cable or motor unit.

An authorized Dolphin technician should analyze and repair the robot. Submit a repair request or contact your local dealer (if you purchased the robot from a local dealer).

If the power supply doesn't turn on, or turns off immediately, or has stopped working altogether

It seems there is an issue with the Power Supply. run the power supply checks to create a warranty claim for a replacement power supply with our easy-to-use self-service tool!

Contact your local dealer if you purchased the robot from a local dealer for a replacement Power Supply Unit.

Note - We cannot complete Power Supply repairs.


Is a specific feature on your power supply not working? Verify in the user manual which features are included with your robot model.

Power supply not connecting to Wi-Fi? I can no longer connect to the MyDolphin Plus app to read more.

Source: Maytronics support. Rewritten for clarity with the same steps; the videos and illustrations are Maytronics' own.

Replacement parts

Parts that fix this.

This answer comes down to power supplies & chargers. The exact part depends on the model: choose your robot and we open its parts list, or browse the category for every model.

Still need help?

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