I had a 55 amp Parallax unit. In my case it was bad and needed replacement. The transformer and several resistor were bad. After searching and pricing I decided to replace it with the PD 9260. The price was less and the reviews better.
I have left my unit plugged in at home for extended period while checking voltage and water levels. At present it's been installed for about 9 months. I've added water twice in the period of time. I had to modify my installation because of a angled brace behind my power box. I ended up turning the entire box upside down so the PD unit was above the brace. The converter is now above the fuses.
I'm very satisfied with the swap.
