doctorjerry Posted April 28, 2017 Posted April 28, 2017 I've been using my old 99i controller without a problem until I tried to add a new 2477D dimmer version 8.2. Version 7.8 units were recognized but the 8.2 v units give a "cannot determine insteon engine error. Is this simply a matter of old and new incompatibility? Just want to be sure before purchasing a newer 994i. Jerome
G W Posted April 28, 2017 Posted April 28, 2017 That is correct. Development on the 99i stopped a few years ago. Sent from my Nexus 6P using Tapatalk
jtara92101 Posted April 28, 2017 Posted April 28, 2017 Just want to be sure before purchasing a newer 994i. Don't purchase a 994i. UDI has a generous upgrade offer. Contact them. I upgraded my a few years ago.
Brian H Posted April 28, 2017 Posted April 28, 2017 The upgrade from an ISY99i to ISY994i is still being offered on their sales page. So I would also suggest contacting UDI for the upgrade offer and looking at the sales page for details. https://www.universal-devices.com/sales/
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