Thanks for being blunt.

Now let me be blunt. The problem I described - with as much detail as I could - has very little to do with the code, and much more to do with a heater - could be ANY brand of heater emmitting ANY error code - that is breaking down well before it is supposed to...displaying rust, breakdown of the firebrick, and an orange flame. Turns out the manifold is cracked, as is the header, and has been spewing water inside the unit - probably has been since it was installed. Working Raypak to work on some sort of settlement so I'm not out $3k.

I've seen the same sort of question and response dozens of times on your forum - posted by people with much less information than I tried to provide, answered by people - you included - with their best guess of what the problem is...and in none of those case did it seem like the people who responded knew the exact unit and product in order to help. That's why I posted.

If you need certain things from your forum community - particularly new members in need of some help - then you should say so. Didn't see anythig in your tips for new users about keeping posts to xx words or less, or leaving codes out of it, etc - in fact it says several times to provide as much detail and background as possible. That's what I did.. Raypak isn't exactly a fly-by-night brand, and there seem to be lots of 406a's out there - that's why I thought somebody could help.

Sorry to have bothered you.