20 Most Recent Sta Rite StaRite Aboveground Pool Sand FilterPump System 21" Filter w 15 HP Pump Questions & Answers

Shut off power, Move Filter Valve Handle to the backwash position Turn on Filter Let filter run until the water is clear. Turn back off and move the handle back to the filter position. TIP: Replace your sand every two years! For more info, go to: http://www.oskopoolnspa.com

You are on the right track. As far as the leak, I would replace item #10 on the schematic (o-ring) and put some pool spa lube on it. As far as the debris getting back into the pool, I would suspect the multi-port gasket which looks like item #7 (multi-port plug and gasket). Be sure to not get any lubricant on this assembly part. When this gasket is broken or warped, some pool water gets thrown past the filter media. Also make sure the spring (item #5) is ok too...Good luck

Hi, I don't have any experience with these, but I'll tell you what I think. It sounds like the valve may be positioned wrong in correlation to the handle. Also, the o-rings are crucial, as are the gaskets. I would disassemble it completely, and check every part, and it's assembly, and make sure an o-ring's not pinched, or incorrectly seated. It's not a super complicated assembly, but it does have a lot of parts that have to be in the right place, and also good parts. Wish I could wave a magic wand, but this is all I can tell you. Good luck, hope you fix it!

https://www.youtube.com/watch?v=V45_D0l2s5A https://www.youtube.com/watch?v=e8RMfw4nZos https://www.troublefreepool.com/threads/max-e-therm-400-service-system-light-on.52433/

Check the control wire that might be connected to the control fuse. If that wire is open the unit will only cycle thru the board information and the sit dormant until the control is called for.

Try changing the Thermal Regulator. You could just remove the T/R as a test and replace as necessary.

replace the mechanical shaft seal. check impeller and diffuser for damage . prime pump after any repair

Sears runs a resource called Parts;sDirect, you can get parts for appliances, tools, lawn equipment,etc.
Need the model and serial #, it'll have exploded views of the different subsections. All.parts on the exploded views are numbered & correspond to a catalog page alongside the picture, with the cost
posted. I've used it repeatedly, very accurate, prices are competitive.

That unit has specific instructions for water temp operation at 60 or lower. The display also can show diagnostic info and there are indicator lights for diagnostics. Do you have any of those showing any errors? If the temp is jumping from 91 to 104 instantly and then back down to 91 instantly, this is a wiring issue or a bad thermistor. Check the wiring and use an OHM meter to check the thermistor, it should have a chart that shows a resistance at a certain temp. There is a limit switch right next to the thermistor, Make sure it is not shorting out with that.