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SmartPool NITRO NC51 - User Manual

SmartPool NITRO NC51
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NITRO NC51 ROBOTIC POOL CLEANER OPERATION MANUAL
Congratulations on your purchase of the most technologically advanced automatic pool vacuum available today. The Nitro is easy to use and will make maintaining your
pool affordable and effortless. Following these simple directions will insure that the Nitro will quickly and efficiently clean your pool today and for many years to come.
INSTALLATION
Place the power supply in an area that will allow the cleaner to cover all areas of the pool.
Be sure to only plug the power supply into a GFI (ground fault interrupter) or ELI (earth leak interrupter) protected electrical outlet.
Look at the power supply and check that the power supply switch is in the off position.
Plug the power supply into the protected outlet.
Plug in the connector from the cleaner into the power supply. The connector is keyed so that it will only plug into the power supply one way. Make sure that the plug is pushed all the
way onto the power supply. Slide the connector lock (strain relief) onto the connector and turn the connector lock clockwise until it is snug.
DO NOT RUN THE CLEANER OUT OF THE WATER.
OPERATING THE CLEANER OUT OF THE WATER WILL DAMAGE THE MOTORS AND VOID THE WARRANTY
Place the cleaner into the pool and if needed rock the cleaner side to side to release any trapped air. The cleaner will sink to the bottom of the pool.
Put enough of the blue cord into the water to assure that the cleaner can easily reach all areas of the pool. (Do not place ALL of the blue cord into the pool).
Push the power switch down away from the handle to start the 3 Hour auto cleaning program. A red Led should be lit.
The cleaner will begin its cleaning program.
The cleaner will automatically shut itself down after three hours.
To turn unit off press small off switch in the middle of the switch. The led will turn off
If a second cleaning is required or the unit is accidentally shut off, you should wait
one minute before switching the unit on again.
IMPORTANT NOTE: During normal operation, the cleaner will appear to shut off for a few seconds, raise the front wheels off the
pool bottom and move either left or right or turn for an undetermined amount of time. This is normal and has been preprogrammed
into the unit to assure the quickest and most efficient cleaning of your pool.
For “Rapid Clean” place robot into the pool. Push the power switch up towards the transformer
handle and a green led will light. The cleaner will quick clean the pool and turn off in 1 hour.
This unit has been designed to clean all areas of your pool. It will climb the walls, and occasionally break the surface. In the process
of climbing the wall it may stay on the surface and continue to operate from several seconds to a few minutes. This is normal
operation procedure and the cleaner will eventually make its way to the bottom to continue its cleaning. Since most of the dirt is
concentrated on the floor of the pool, the cleaner will spend the majority of its time on the floor.
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Questions and Answers

  • E
    Edward ToddAug 16, 2025
    Why is the cord twisting on my SmartPool NITRO NC51 Swimming Pool Vacuum?
    • C
      Christina SimmonsAug 16, 2025
      If the cord of your SmartPool Swimming Pool Vacuum is twisting or coiling up, it could be due to several reasons. First, check for any obstructions in the pool and remove them. Second, ensure that you are not placing too much cord in the pool; only add enough cord for the cleaner to reach the bottom, allowing it to pull in extra cord as needed. Excessive coiling can also be a factor, so uncoil the cord. Finally, make sure to disconnect the cord from the power supply after each use to release any tension.
  • M
    Mitchell JacksonAug 19, 2025
    How to improve pool coverage with my SmartPool NITRO NC51 Swimming Pool Vacuum?
    • P
      Paula LoweryAug 19, 2025
      If your SmartPool Swimming Pool Vacuum isn't covering all areas of the pool, reposition the power supply so the cleaner can reach all walls. Also, turn off the pool filter pump. If the floor and walls are too slick, brush them down. Uncoil the cord if there is excessive coiling.
  • A
    Anthony ReeseAug 22, 2025
    Why won't my SmartPool NITRO NC51 Swimming Pool Vacuum climb the walls?
    • T
      Tamara MartinAug 22, 2025
      If your SmartPool Swimming Pool Vacuum isn't climbing walls, start by emptying and washing the filter bag. If the floor and walls are too slick, brush them down. Ensure the water temperature is at least 60°F. If the brushes are worn out, consider replacing them by contacting your dealer.
  • T
    Tina MitchellAug 25, 2025
    Why is my SmartPool NITRO NC51 going in circles?
    • K
      Kristin WilliamsAug 26, 2025
      If your SmartPool Swimming Pool Vacuum is moving in circles, it could be due to a clogged filter bag, so clean the filter bag. Another possibility is that the bottom lid is not placed properly. Remove the bottom lid, ensure the filter bag is correctly positioned, and then reattach the lid to the cleaner.
  • D
    davilastevenAug 28, 2025
    What to do if my SmartPool NITRO NC51 is not moving?
    • C
      Chelsea WebsterAug 28, 2025
      If your SmartPool Swimming Pool Vacuum is not moving, debris in the filter bag may be the reason. Test the cleaner without the filter bag; if it starts moving, clean the filter bag. Also, ensure the bottom lid is properly installed. Remove it, check the filter bag's position, and reattach the lid.
  • D
    Deanna TaylorAug 31, 2025
    Why is my SmartPool NITRO NC51 Swimming Pool Vacuum doing wheelies?
    • S
      Shelly BoydAug 31, 2025
      If your SmartPool Swimming Pool Vacuum is doing wheelies, it may be due to debris in the filter bag. Try testing the cleaner without the filter bag; if it stops doing wheelies, clean the filter bag. Also, check the impeller tube for any hair or debris and remove it. Lastly, ensure the bottom lid is properly installed.
  • A
    Ann PerezSep 3, 2025
    How to make my SmartPool NITRO NC51 Swimming Pool Vacuum sink?
    • G
      gibsonleahSep 3, 2025
      If your SmartPool Swimming Pool Vacuum won't sink, it's likely due to air caught in the filter bag. Remove the cleaner from the pool, wash the filter bag, and then place the cleaner back into the pool, rocking it back and forth to release the trapped air.
  • G
    garzamicheleSep 6, 2025
    Why is my SmartPool NITRO NC51 Swimming Pool Vacuum only moving a few feet?
    • B
      Brenda MillerSep 6, 2025
      If your SmartPool Swimming Pool Vacuum is only moving a few feet, it could be due to improper installation of the bottom lid and/or filter bag. Test the cleaner without the filter bag (but with the bottom lid on). If it travels more than a few feet, reinstall the bottom lid and filter bag correctly.
  • K
    Kathleen RojasSep 9, 2025
    Why is my SmartPool NITRO NC51 climbing out of the water?
    • G
      Gloria DunnSep 9, 2025
      If your SmartPool Swimming Pool Vacuum is climbing out of the water, it is likely due to air trapped in the filter bag. To resolve this, test the cleaner without the filter bag. If the cleaner no longer climbs out of the water, then clean the filter bag.
  • K
    Kimberly WeaverSep 12, 2025
    Why isn't the LED on my SmartPool NITRO NC51 power supply lighting up?
    • R
      Rebecca HicksSep 12, 2025
      If the LED on the power supply of your SmartPool Swimming Pool Vacuum is not lighting, test the power supply by using another GFI outlet. If that doesn't work, remove any extension cord and plug the power supply directly into a GFI outlet.

Summary

Nitro NC51 Operation Manual

Installation Guide

Step-by-step instructions for setting up the Nitro NC51 pool cleaner, including power supply connection.

Cleaner Operation Procedures

How to place the cleaner in the pool, manage the cord, and start cleaning cycles, including Rapid Clean mode.

Normal Operation Behavior

Explanation of the cleaner's programmed movements, pauses, and pattern changes during cleaning.

Pool Cleaner Maintenance

Removing Cleaner from Pool

Safe procedure for lifting the cleaner out of the pool by its handle, not the cord.

Cleaning the Filter Bag

Detailed instructions for cleaning the filter bag after each use, including washing methods.

Cleaner Maintenance and Storage

Filter Bag Reattachment

How to correctly reinstall the filter bag and secure the bottom lid after cleaning.

Cable Maintenance and Storage

Guidance on uncoiling the power cord and proper methods for storing it to prevent damage.

Winter Storage Instructions

Recommendations for storing the cleaner and power supply indoors during cold weather.

Caddy Assembly Instructions

Caddy Parts and Initial Assembly

Detailed steps for assembling the cleaner caddy, starting with the base, brackets, and poles.

Caddy Assembly Completion

Final Caddy Assembly Steps

Completing the caddy by attaching hooks, handle, transformer, and properly storing the cleaner.

Troubleshooting Guide

Common Cleaner Issues and Solutions

A comprehensive guide to diagnose and resolve common problems with the Nitro NC51 cleaner.

Nitro NC51 Warranty Information

2-Year Limited Warranty Details

Explains the terms, conditions, limitations, and coverage of the 2-year limited warranty.

Obtaining Warranty Service

Information on how to contact customer support and initiate warranty service for the cleaner.

Vinyl Liner Caution

Warning about potential damage to vinyl pool liners from contact with pool cleaner components.

SmartPool NITRO NC51 Specifications

General IconGeneral
BrandSmartPool
ModelNITRO NC51
CategorySwimming Pool Vacuum
LanguageEnglish

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