Common Issues and Fixes with Maytronics Dolphin Robotic Pool Cleaners

Contact us for Maytronics Dolphin cleaner warranty and after warranty repair in and around Gordon Sydney NSW, spare parts shipped Australia wide.

Introduction

Let’s face it—there’s nothing better than kicking back beside a sparkling clean pool. But when your Maytronics Dolphin robotic pool cleaner starts acting up, it’s like your summer fun hits a snag. If you've invested in one of these smart little machines, you expect it to take care of the dirty work. But what happens when it doesn’t?

No worries. Just like your car might need a tune-up or your coffee machine might need a descaling, your Dolphin cleaner needs a little TLC too. This guide is here to help you understand common problems with Maytronics Dolphin pool cleaners, what causes them, and most importantly—how to fix them quickly.

And if you’re in Gordon, NSW or anywhere across Sydney’s North Shore, our experienced technicians at Drive In Pool & Spa Warehouse are here to help. Whether it’s a quick service, diagnosis, or replacement part, we've got you covered.

Table of Contents

Sr#	Headings
1	Power Supply Not Turning On
2	Cleaner Not Moving
3	Doesn’t Climb Walls
4	Gets Stuck in Corners
5	Cable Tangling Issues
6	Filter Not Cleaning Properly
7	Brushes Not Spinning
8	Suction Problems
9	Water Not Circulating Properly
10	Remote or Bluetooth Not Connecting
11	Cycle Doesn’t Complete
12	Floats Instead of Sinks
13	Error Codes and What They Mean
14	Maintenance Tips to Avoid Issues
15	When to Call a Technician in Gordon NSW

 

1. Power Supply Not Turning On

Issue: You press the power button and—nothing.

Fix:

• First, check your power outlet. It might sound silly, but tripped breakers or loose plugs are often the culprit.

• Inspect the power supply for damage, especially if it’s been left in the sun or near water.

• Reset the GFCI on your outlet if you’re using one.

• If none of this helps, try another socket. Still nothing? The power supply may need replacing. You can browse our full range of Maytronics Dolphin power supplies and spare parts here, or contact us for expert assistance.

Tip: Always store the power unit indoors when not in use to avoid electrical damage.

2. Cleaner Not Moving

Issue: The cleaner powers on but doesn’t budge.

Fix:

• Debris could be blocking the drive system—check the tracks or wheels for leaves or twigs.

• Check the impeller (tiny internal fan). If it’s jammed, the robot won’t move.

• Try doing a hard reset by unplugging everything for 10 minutes before restarting.

• Hard reset the power supply unit by holding down the on/off button for 30 seconds.

Think of it like your robotic cleaner’s version of a nap—it just needs a break to reboot.

3. Doesn’t Climb Walls

Issue: Dolphin refuses to go vertical.

Fix:

• A dirty filter can reduce water flow, which is key for climbing.

• Check if the foam rings or climbing rings are worn out or missing.

• Make sure your pool surface isn’t too slippery from algae or chemical imbalance.

Solution: Clean or replace filters, and brush the pool walls to give your Dolphin some grip.

4. Water Ingress: When Water Reaches Areas It Shouldn’t

Issue: Your Maytronics robotic pool cleaner displays a persistent error and fails to move.

Fix:

• Check the LED Light (for applicable models):
  Inspect the LED light for signs of water intrusion. If moisture is visible inside the light housing, it likely needs replacement.
• Inspect the Swivel Connector:
  Look for signs of discolouration or corrosion on the swivel. These are indicators of water damage and may require a full cable replacement.
• Examine the Motor Unit:
  If water has entered the motor compartment, the motor will need to be replaced. Keep in mind that new motors must be properly synced with your robot. For expert assistance, contact our Maytronics repair team in Gordon or get in touch for spare parts support Australia-wide.

5. Cable Tangling Issues

Issue: The cord looks like a spaghetti mess.

Fix:

• Make sure your cable is floating freely at the surface—don’t coil or wrap it tightly.

• Use a swivel cable (many newer models include this).

• Regularly untwist the cable by laying it straight out in the sun for a few hours.

6. Filter Not Cleaning Properly

Issue: Your pool is still cloudy even after a cleaning cycle.

Fix:

• Rinse or replace the filter basket—especially if it’s clogged with fine debris use a filter cartridge degreaser and cleaner to achieve the best results.

• Use ultra-fine filters for pollen, dust, or sand.

• If you’ve recently shocked the pool, fine particles might need a few cleaning cycles to clear.

7. Brushes Not Spinning

Issue: Brushes are idle, even though the cleaner is moving.

Fix:

• Check for debris around the brush shaft or broken gears.

• Remove the brushes and inspect for hair or string that might be wrapped around them.

• Worn-out brushes should be replaced regularly—especially in older units. Find your replacement brushes here.

8. Suction Problems

Issue: Your Dolphin isn’t sucking up dirt properly.

Fix:

• Blockages in the intake or impeller area could be the cause.

• Remove and clean the intake port and impeller blade carefully.

• Ensure your filter basket is seated properly—if it’s loose, suction drops.

9. Water Not Circulating Properly

Issue: Water jets seem weak or irregular.

Fix:

• Clean or replace the filters and impeller. Filter cartridge degreaser and cleaner here.

• Make sure your pool water level is correct—the robot needs full submersion.

• Inspect jets or output vents for calcium or debris buildup.

10. Remote or Bluetooth Not Connecting

Issue: You can’t control your cleaner via app or remote.

Fix:

• Ensure your cleaner model supports Bluetooth or remote operation.

• Restart your phone and the cleaner.

• Reinstall the app or update firmware, if applicable.

11. Cycle Doesn’t Complete

Issue: Your Dolphin stops mid-cycle.

Fix:

• This could be a battery or overheating issue.

• Let it rest for a while before trying again.

• Clean the motor housing vents if you see blockages.

12. Floats Instead of Sinks

Issue: It’s acting like a boat, not a cleaner.

Fix:

• Check if air is trapped inside the cleaner. Tip it sideways in water to release bubbles.

• Ensure that the filters are wet before starting a cycle.

• Remove unnecessary buoyant accessories.

13. Error Codes and What They Mean

Issue: Flashing lights or beeping sounds.

Fix:

• Refer to the user manual for your specific Dolphin model.

• Common codes include:

  • 3 Flashes: Motor issue

  • 2 Flashes: Impeller or drive motor jammed

  • Solid light: Cleaning complete or no error

14. Maintenance Tips to Avoid Issues

Prevention is better than cure, especially when it comes to robotic pool cleaners. Here's how you can reduce problems before they begin:

• Rinse the filter basket after every use.

• Check and clean the brushes weekly.

• Store the unit indoors when not in use.

• Keep the cable untwisted and dry after use.

• Do a full inspection every month, including impeller, tracks, and cable connections.

15. When to Call a Technician in Gordon NSW

If you've tried everything and your Dolphin is still misbehaving, it’s time to bring in the experts.

Live in Gordon, NSW or Sydney’s North Shore? Reach out to the friendly team at Drive In Pool & Spa Warehouse. We’re authorised to diagnose, repair and service most Maytronics Dolphin robotic pool cleaner models.

Call us if you notice:

• Water inside the motor unit

• Burning smells

• Repeated electrical failures

• Complete loss of power or movement

Conclusion

Your Maytronics Dolphin robotic pool cleaner is like the loyal pool butler you never knew you needed—until it stops working. But most issues are surprisingly easy to diagnose and fix with a bit of patience and basic know-how.

Taking care of your Dolphin means less pool maintenance stress and more time enjoying your sparkling clean oasis. And if you need help, our expert technicians in Gordon, NSW are just a call or click away.

Need help? Contact us today for fast, friendly, and professional service.

Frequently Asked Questions (FAQs)

1. Why is my Dolphin cleaner floating instead of cleaning the pool?
Trapped air or dry filters can cause the cleaner to float. Submerge it properly, tilt to release air bubbles, and ensure filters are saturated.

2. How often should I clean the Dolphin's filters?
Ideally, after every use. Dirty filters reduce performance and put stress on the motor.

3. Can I leave my Dolphin cleaner in the pool all the time?
It's not recommended. Constant exposure to pool chemicals and sunlight can damage the robot. Always remove and store it after use.

4. Why is the power supply light flashing on my Maytronics Dolphin?
A flashing light often indicates a motor or impeller issue. Try cleaning out debris, or check for error codes in your user manual.

5. Do I need professional servicing for my Dolphin cleaner?
Only if DIY fixes don’t work or if there’s electrical damage. Most issues, like filter clogs or cable tangles, can be handled at home—or by us if you're near Gordon!