Thanks for getting back to me on both posts. The chipset on my panel is "EWC Controls, Inc BMPlus2000, vers 1.2". The lights are from top to bottom, z2, z1, w2, y, w1b, g with a "status" light to the right of these. The status light blicks 3 times fast then on for a second continuously. When there are no calls to the system, the w1b light is on along with the z1 and z2. When the system gets a call, the g, w1b, y, and appropriate z1/z2/both are lite. When the outside unit kicks off, the y light goes out. When the fans quit running, the g light goes out, and just before this happens, the z2 light (if z1 was the original call) comes on so it too seems to get the circulated air for a moment.
So when it is cold, just after the system "shuts down" and goes back to w1b, z1, z2 lite, it immediately kicks back into g, w1b, y, z1. This is the cycle that concerns me as it only seems to "catch up" long enough to circulate air, then comes right back on again. There is never a few minutes delay for the temperature to change before it kicks back on. Is there something wrong or are the tolerances on temperature overshoot and call so close that when it is cold, it never really can rest. As the temperature outside warms up, these "rests" do start to occur and for longer intervals.
The "dials" of w2 timer, heating limit, cooling limit all have the arrows pointing straight up. EM Heat switch is "off", fan sel switch is g/hp, the upper right dip switches are top to bottom: left, right, right, left.
Does this help any? Thanks again!