That's good info to know... I've been using my Rheem Condensing unit since early April, when you helped me with my install... thanks again for that. For the 7 months in service, I have been very happy with my Rheem machine. I know that I will never pay back what it cost, over a tanked unit... but the happiness of running the washing machine, washing dishes and still being able to take a 30 minute shower at the same time is great!!! Plus our old gas bill used to be $15.00 -$20.00 per month... since the install, I've averaged about $7.50 - $10.00 for my gas bill. We'll see how much my gas grows once my swimming pool and spa are finished.
I do have a couple questions about your code. I plan on descaling my system this week, since I will be installing a whole house water softener system (Fleck 5600SXT). Does that descaling code come on automatically as a regular maintenance, or did it sense that it needed descaling? Also, how did you figure out that reset procedure? Did you call Rheem for the info? So far I've only called them once and they were very helpful.