1) My Dolphin power supply doesn t turn on when I push the power button: 2) My Dolphin power supply turns on, but the Dolphin does not move:

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1 by Dolphin Troubleshooting Your Dolphin is a wonderful tool that can help you spend less time, money, and energy keeping your pool clean and maintained and more time enjoying it with your family. This Troubleshooting Guide is designed for the home user as a way to address the most common issues that may arise during normal use of your Dolphin robotic pool cleaner. Most issues Dolphin owners experience can be solved without the need for professional service. However, some issues will require diagnosis and repair by an authorized Dolphin technician. Depending on your Dolphin s model, you may be able to take it to your local authorized Dolphin retailer for diagnosis and repair. Some models require the services of one of Maytronics Authorized Repair Centers, conveniently located around the country. If you purchased your Dolphin from an authorized internet retailer or a catalog, please visit our Customer Servicepage at further assistance in solving your issue. 1

2 1) My Dolphin power supply doesn t turn on when I push the power button: Check the outlet it s using by plugging in another device, such as a cell phone charger, hair dryer, radio, etc. If there s no power at the outlet, check your GFI switch, try a different outlet, etc. If power is good: If your power supply has a red rocker switch to turn it on, check the fuse. If the fuse is blown, purchase a replacement at your local hardware store. If the fuse blows right away after replacing it, you probably need to replace your power supply. Take your Dolphin to an authorized Dolphin dealer for testing. NOTE:if the light under the rocker switch comes on, it is generally NOT a bad fuse. If your power supply has a square On button surrounded by blue LED lights, you probably need a replacement power supply. Take your Dolphin to an authorized Dolphin dealer for testing. 2) My Dolphin power supply turns on, but the Dolphin does not move: If the Dolphin doesn t move AT ALL, there could be a problem with your cable. Take your Dolphin to an authorized Dolphin dealer for testing. If your Dolphin moves a little and then stops (anywhere from a few feet to a few minutes), there could be an obstruction somewhere in the drive train or around the impeller. Visually inspect the unit, especially around the impeller and around the tracks/brushes. If there is any visible debris, remove it. Try to rotate the brushes by hand. They should move freely in both directions with minimal resistance. If they do not, or you feel/hear clicking or popping, there s probably an obstruction you cannot see. Take your Dolphin to an authorized Dolphin dealer for testing. If no obstruction exists, you probably need a replacement motor unit. Take your Dolphin to an authorized Dolphin dealer for testing. 2

3 3) My Dolphin won t climb the walls, or it gets stuck in the deep end and can t get out: The most common reason for this is that the Dolphin s filter bag/cartridges are clogged and need to be cleaned. It is recommended that you clean out the Dolphin s filter bag/cartridges after each use, but deeper cleaning may occasionally be required and is highly encouraged. Remember, just because your bag/cartridges LOOK clean doesn t mean that there isn t fine particulate matter clogging them up! For units with filter bags, machine-wash the bag w/ a little bleach, let it air-dry, then try again. For units with filter cartridges, allow the cartridges to soak (overnight would be best) in cartridge cleaning solution, rinse, then try again. If the unit still won t climb, try removing the filter bag/cartridges altogether. If the unit will climb without them in place, replace the bag/cartridges. If the unit still won t climb without the filters in place, continue troubleshooting below. NOTE:do not operate the unit for more than 10 minuteswithout the filter bag in place as debris may be drawn into the impeller, which may damage the motor unit. Sometimes, buildup on the walls and/or slope of the pool from body oils, sunscreen, even liquid solar blankets can prevent your Dolphin from climbing properly. If your unit is attempting to climb but slipping and sliding on the wall as it does so, try brushing the walls and/or slope down manually once to loosen this buildup. The Dolphin should then be able to grip these surfaces and maintain them on its own going forward. Pool chemistry matters! Make sure that your pool water is balanced (especially ph), and that no algae exists on the surfaces in question. High PH can inhibit the ability for the brushes to grip the sides of the pool as unit attempts to climb, and algae makes surfaces slick so the Dolphin will slip as it tries to climb. Remember, most Dolphins are only programmed to climb about once every 4 minutes, so be patient! If the Dolphin isn t even attempting to climb, there could be a mechanical or electronic problem. Take your Dolphin to an authorized Dolphin dealer for testing. 3

4 4) My Dolphin gets stuck in one part of the pool, or consistently misses part of my pool: Make sure that the cable is not tangled or kinked and that unit has enough slack in the cable to reach the entire pool. Try starting the cycle at a different location. The Dolphin s scanning pattern will take it in a different path every time. As before, buildup on the surfaces of the missed areas might be preventing the Dolphin from being able to efficiently clean them. Try brushing them down manually, and the unit should then be able to maintain them on its own. 5) My Dolphin runs, but it won t run a full cycle: Every Dolphin has many sensors and fail-safes to prevent damage during operation. Early shutdown is usually caused by an overload error either from the drive system or the impeller. Check for obstructions per Step 2 of this Guide. If no obstructions exist, you likely need a replacement motor unit. Take your Dolphin to an authorized Dolphin dealer for testing. 6) My Dolphin gets stuck on my VGB main drain cover. Try turning your pool pump OFF while your Dolphin is in operation. The additional suction from the main drain may contribute to your Dolphin getting stuck. Depending on your model, there may be a solution to this problem available from Maytronics in the form of a replacement impeller cover. This alternate cover angles the water expelled from the impeller backwards rather than straight up, which can propel the Dolphin off of high VGB main drains. If no such VGB solution exists for your Dolphin model, there are a variety of after-market, 3 rd -party devices which can be installed on or over your VGB drain cover to prevent your Dolphin from getting stuck. 4

5 7) My Dolphin is not picking up dirt/debris, or it s escaping out the top of the unit: Make sure your Dolphin s filter bag/cartridge is not dirty or clogged per Step 3 of this Guide. Make sure that the filter bag/cartridges are properly installed: For filter bags, make sure the elastic of the bag is snug against the bottom lid and that it is over the plastic lip on the lid so that no gaps are visible. For filter cartridges, make sure that each of the 4 cartridges is snapped in place and that no gaps are visible. If your Dolphin is equipped with all-surface Combination Brushes (PVC bristles and white foam rings), you may notice it leaving two clear tracks on the pool s surface but not picking up the dirt/debris it travels over. Make sure you allow the foam rings to become fully saturated with water before starting your cycle. This usually takes between minutes. If these rings are not allowed to become hydrated, they can remain hard and stiff, and may not compress enough to allow your Dolphin to get good suction, or for its brushes to make contact with the pool s surface. 8) My Dolphin floats/won t sink all the way to the bottom of the pool: When inserting the Dolphin into the water, put it in UPSIDE-DOWN, and hold it just under the surface of the water with your hand or foot until all the air inside it escapes upward, out the non-return flaps on the bottom of the unit. It should then sink on its own and shouldn t exhibit any floating. If you have a salt-water pool, make sure that the level of salt in PPM is within the ideal range. High salinity can increase the buoyancy of the water, which can affect your Dolphin s own finely tuned buoyancy. 5

6 9) When I remove my Dolphin from the pool, dirty water/debris escapes out the bottom: When removing the Dolphin from the water, gentlyguide it toward you using the cable. Once you can reach it, don t lift it out of the water directly by the handle; in addition to being extremely heavy, this allows unfiltered water to drain directly out the bottom of the unit. Instead, tiltthe Dolphin out of the water and onto the deck. This allows all the water inside to drain out throughthe filter bag/cartridges and out the impeller cover, trapping all the dirt and debris inside. 10) My Dolphin s Full Bag/Cartridge Indicator light comes on when the bag/cartridge is not full: This light is controlled by a sensor attached to the Dolphin s motor unit and comes on when a full bag/cartridge makes it hard for the Dolphin to pull water through the bag/cartridge as it fills up. Make sure your filter bag/cartridge is clean per Step 3 of this Guide. To reset this light once you have deep-cleaned your bag/cartridges, simply hold the Reset button on your power supply while the Dolphin is in use. This will zero out the sensor and cause the light to not come on until the bag/cartridge is in fact starting to fill up. If your issue is not listed, or after attempting the troubleshooting steps in this guide your Dolphin is still experiencing issues, contact your local authorized Dolphin dealer for assistance, or call Maytronics Customer Service at (888)DOLPHIN. 6