My S200 also just failed recently, after approximately 4.5 yr. Couldn't problem solve it, buying new one from Marina. Getting an Active 20, as that is the comparable model they have in stock. The S200, Active 20, Pentair Warrior SE, Explorer E30, and Triton PS are all the same.; just labeled differently and with slightly different prices. I recommend you begin an email thread with Margaret at Marina Pool and Spa. Very helpful. They are quite busy now, but they will respond.
She could not discount the E30 or the Triton PS, but had some wiggle room on the Active 20. The Pentair Warrior SE, and S200 are not in stock. I am getting an awesome deal on an Active 20. Margaret verified that parts from my S200 could be used on the Active 20. I decided to reuse my filter basket, spring filters, and ultra fine filters. Side note, I have never used my fine filters; spring filters do a great job and are very quick to hose off since flat mesh material. My basket and spring filters are in good enough shape. Also, I am reusing my power supply unit and power cord. It works now to give power to Ghostlight, my S200, as evidenced by it's light turning on, but Ghostlight won't move. So, if my power supply unit works with my Active 20, great; I'll use it till it fails. then get a replacement at that time.
Long story short, if some of your parts are in good shape, use them and have Margaret remove some items from the box to lower your costs. The only thing is you are going from an Active 30 to an Active 20, so call or email her to verify your parts would be interchangeable with the Active 20.