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

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.

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.

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.

I have the same issue. Did you ever figure the plug wiring out?

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.