[Scuba Steve]

I've seen that forum too when searching for troubleshooting info. Not a big fan either. I can understand someone wanting to protect what they do, but really a lot of that stuff involves special tooling anyway when it comes to the heavy work. It's a terrible attitude for them to have if only because sharing the knowledge would make consumers smarter and less likely to be smoked by a contractor coming in saying they need an expensive repair when it's unnecessary. Even if you're not going to fix something yourself it's still good to know what the likely culprits are so you won't fall for a big lie or scam.