Respironics Error fix

OK. Here’s what I’ve discovered. After opening the machine and looking at the circuit board, I saw numerous areas where some white corrosion had bridged the gaps between solder joints. I disconnected and removed the circuit board, then took a toothbrush and removed all of the corrosion; using a magnifying glass to verify it was all gone, top & bottom. This included using a dental flossing brush to get underneath the display. Then I coated the entire board, top & bottom side, with a circuit board paint. This might be be purchased at an electronic supply store like Frye’s. Otherwise, I would recommend using a clear nail polish to do the same (under no circumstance use anything colored or with a metallic ingredient or any water-based paint). Do two coats if necessary. Bottom line, my machine has worked for over a year without another failure.

Cool.

It's good you tried it and it worked but other DIY'ers take care and be sure not to void the warranty. BTW, I think one could just stop at cleaning off the white residue of corrosion and call it good at that point. Just a hunch guest, but do you live in the tropics (maybe Florida or the Deep South?)