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I had this problem as soon as I upgraded to 2.1.6 some time ago (I have OS hardware 2.0, AC and one expansion board). I just upgraded to firmware 2.1.7 and the problem persists.
On the expansion board, stations 1, 4, 6 and 7 are permanently off. Valves will never open.
Expansion board stations 2, 3, 5 and 8 are permanently on. As soon as a valve is hooked up, it opens.
Stations 1 thru 8 on the OS module work fine.
I don’t know if my expansion board has failed or if there is some incompatibility with firmware 2.1.6 and 2.1.7. I didn’t report this until now because I only used one station on the expansion board and that zone was not used very much. But now I need it and more.
Thanks
I don’t think this is a software problem — I am not aware of any known issue of expander with either firmware 2.1.6 or 2.1.7. This could be due to defective shift register on the expander, or mis-connection of the expansion cable. In either case, you can submit a support ticket if you haven’t done so already.
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