Your solution was magic! I haven't soldered in 30 years but this was as easy as it gets. I borrowed a soldering iron from a friend and repaired the problem in about 5 minutes. With cell plugged in, I get "cell sensor short" message. With cell not plugged in, I get "cell sensor open." Seems that the board is ok. No visible shorts or burnt/browned areas. I already did 1 solder job on the board as the generator wouldn't start after the delay timed out (set at 45 sec.) about a year ago. System almost 4 yrs old. Cell was pretty full of debris and calcium deposits when I removed it to clean. It cleaned up pretty well with just water and a little popsicle stick help. Probably need a new cell. But before buying one is there some check I can do on the cell itself? Comments vs questions... I believe that DarenTx intended this section to be for people to post only comments, such as their successes, failures, stories, and gratitude. The forums are where all questions, discussions, and pleas for help should be posted. FYI... That's the page I make sure I check several times a day. I don't answer questions in the comments sections, even under my own posted "letter".