I had one replaced by warranty, one outside of warranty. Both times service was good, but after the damage was done. Nothing like having your chiller on when the AC controller read 85 degrees and the tank's true temp is at 72 degrees, that's the sort of thing i came home to...After that, i used the AC temp for internet update only, used ranco to control heaters and chiller. Then got tired of bad reads making me nervous, dropped the AC altogether. Ranco has been flawless 9 years now, and i have 3 of them.
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