I had a problem just like that 2 years ago - turned out that one of the small socketed chips on the main board that handles the thermostat communication was fried. I swapped it for a good one and everything started working again.<br>
<br>I don't remember the details as to which chip it was, but hopefully one of the folks from HAI can chime in with that info.<br><br><div class="gmail_quote">2009/11/13 Joseph Vossen <span dir="ltr"><<a href="mailto:jkv@vossen.org" target="_blank">jkv@vossen.org</a>></span><br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I have an OmniPro in my home which was installed around 1998; it is running f/w 1.9. I also have nine (9) thermostats (RC-80) and one (1) outdoor temperature sensor connected.<br>
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Last night I was looking at one of the thermostats and noticed that the outdoor temperature was not being displayed; this was true for all nine (9) thermostats.<br></blockquote></div>