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Old 10-27-12, 10:14 PM   #25
Xringer
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Quote:
Originally Posted by AC_Hacker View Post
I wouldn't worry too much about that. I think Xringer would agree that his unit had a pinhole leak from birth.

I'll take the photos & send them on...

-AC
Nope, I don't agree. The system was working fine for about a month.
After it failed, I pumped in some nitrogen and easily found the leak,
because it was hissing pretty loud.

I was able to let the Sanyo service manager hear the sound via telephone.
Within seconds, he agreed that I had found the leak and said he would ship a replacement for the outdoor unit.


Bad control firmware causes the Sanyo 24KHS72 to run at overly high RPMs,
until one of the safety limits kick in. (Over-load or Over-pressure).

R410A runs a lot more pressure than standard refrigerants.



After a while, it was most likely one of the many high pressure runs that blew a pin hole
(weak spot?) in the copper tube right above the compressor.

The bad firmware problem is still there, but I now limit the current to 10A.
So my Sanyos* don't even get to try for that 3.6 kW surge anymore..

* Both made in 09/2009
http://i46.photobucket.com/albums/f1...r/NCL/F106.jpg


That's my story, and I'm sticking to it..
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