20 Most Recent Polaris 3900 Sport Pool Cleaner () Questions & Answers


My Polaris 3900 Sport is

With these automatic pool cleaners, if they are not staying firmly on the bottom of the pool, it is most likely that there is air in the appliance casing.Try submerging your cleaner. Keep the cleaner vertical while you are putting it in slowly to let the air out. Ensure the unit sinks to the bottom of the pool.
8/21/2022 7:28:32 AM • Polaris 3900... • Answered on Aug 21, 2022

Sport 3900 is doing wheelies will not stay level to clean

1. Check the wheel RPM. If not in the 30-36 RPM range, refer to the manual for adjusting the wheel RPM. 2. Adjust the thrust jet downward. 3. Verify the backup valve is cycling. Lift the valve out of the water and watch the jet. It should come on and go off. 4. Check for water inside the head float. 5. Empty the filter bag. You can download the 3900 Manual from the Polaris site http://www.polarispool.com/Pressure/Polaris-3900.aspx It will show you how to check the wheel rpm and how to adjust the thrust jet and check and adjust the float.
8/21/2022 7:27:08 AM • Polaris 3900... • Answered on Aug 21, 2022

Polaris 3900 is going in

If the cleaner is running in circles to the left the chain has come off the double side. To fix take bottom off and place chain where it is riding on the center sproket. To test turn one wheel and all wheels should turn. Also on the axel blocks the wheels are attached to can be adjusted to allow more tension on the chain.
11/10/2021 1:05:13 PM • Polaris 3900... • Answered on Nov 10, 2021

3900 goes round circles and stays in deep end

I had the issue of Polaris 3900 going in circles and staying on the deep end for a while before I figured out the problem. In some cases the lone wheel connected directly to the gearbox turns faster than the wheels connected to the chain causing it to veer right because of slippage. When this happens check to see if the chain is secure. It should be tight enough so that the tensioner does not touch the wheel sprocket. In my case I had to remove some 6 links from the chain and once I did this it started working well. When you disassemble the unit you will see a sticker with a diagram of the drive chain on the feedpipe. Check that the angle of the tensioner is consistent with the diagram so that it does not touch the sprocket. s-l640-undefined-undefined-5.png
8/25/2020 4:21:37 AM • Polaris 3900... • Answered on Aug 25, 2020

Hello. i have a

Im trying to fix the similar problem...the sprocket on the gearbox is worn Part# 393-204. Unfortunately. u have to buy the whole gearbox. BS in my opinion. U should just be able to buy the sprocket...Im trying to figure how to do this with Polaris.
5/18/2018 4:00:15 AM • Polaris 3900... • Answered on May 18, 2018
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3900 goes round circles stays in deep

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