Maytronics Dolphin Power Supply, 120W, 115V 99956034US-ASSY

Maytronics SKU: MAY99956034USASY
Maytronics Dolphin Power Supply, 120W, 115V 99956034US - ASSY - Cleaner Parts - img - 1

Maytronics Dolphin Power Supply, 120W, 115V 99956034US-ASSY

Maytronics SKU: MAY99956034USASY
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Maytronics 99956034US-ASSY — Basic Power Supply 120W / 115V

Product Overview

The Maytronics 99956034US-ASSY is a genuine OEM replacement power supply unit designed for robotic pool cleaners. It provides 120 W output at 29 V DC for compatible models with simple on/off operation (no WiFi). This unit is intended for use with robots from the Dolphin/Mayontronics family that require a basic power supply.

Key Features

  • Output: 120 W power supply for 115-V input (100-240 V, 50/60 Hz) service environments.
  • On/off operation only—no WiFi or advanced timer functions.
  • Compatible with a range of Maytronics Dolphin robotic pool cleaners (models such as S50, Active 10, Echo, E10, T15, Encore, Escape, and others with basic power supply requirement).
  • Genuine certified Maytronics part to maintain approved performance and warranty integrity.

Technical Specifications

  • Part Number: 99956034US-ASSY
  • Input Voltage: 100-240 VAC (50/60 Hz), ~2 A typical
  • Output Voltage: ~29 V DC
  • Output Power: 120 W nominal
  • Included: Power supply box only — does **not** include the external power cord (you may reuse the cord from your previous supply if compatible).
  • Package dimensions: Approx. 9.2 x 3.7 x 8.2 inches; weight ~2.3 lb (1.05 kg).

Compatibility / Use Cases

This unit is well suited for robotic pool cleaning systems that originally used or require a “basic” power supply with on/off functionality (rather than advanced weekly timer or WiFi capabilities). Typical compatible robots include:

  • Dolphin S50
  • Dolphin Active 10
  • Dolphin Echo
  • Dolphin E10
  • Dolphin T15
  • Dolphin Encore / Escape models with basic power supply requirement

Before ordering, verify your existing power supply specs, connector, and the model number of your robot to ensure compatibility.

Installation Notes

  • Disconnect the robot from the electrical supply and unplug the old power supply before beginning installation.
  • Remove the previous power supply unit and note the cord/connector configuration to reuse if compatible.
  • Mount or place the new unit in a dry, ventilated area protected from water and direct pool chemicals.
  • Connect the DC output cable to the robot as per manufacturer instructions and plug in the AC input cord (or reuse prior cord if approved).
  • Turn the power supply ON and run the unit briefly to verify correct operation—check that the robot begins its cleaning cycle and monitors for any fault codes.

Troubleshooting

  • No power to robot: Check AC line is live, verify power supply ON/OFF switch, ensure DC output connector is properly seated.
  • Robot shuts off prematurely: Verify output voltage stays within specification under load, inspect for overheating of supply unit.
  • Power supply gets very hot: Confirm ventilation around unit, ensure it’s not enclosed in a sealed box, and that it is rated for ambient temperature conditions.

Maintenance Tip

Periodically inspect the power supply unit for dust buildup, corrosion at the output connector, and secure mounting. Replace if the unit shows signs of overheating (discoloration, smell) or if the DC output becomes unstable. Keeping the power supply clean and properly ventilated helps maintain the longevity of your pool cleaning robot.

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.