Had a call from a customer that their controller was malfunctioning. So we look at the clock and see that it's doing some weird stuff. In the "off" or "run" position it sporadically flashes "err." Did some testing and found that everything was testing out just fine. Then our tech said that it runs fine when the remote is plugged in and the ERR stops flashing, then goes crazy when the remote receiver is unhooked from the smart port. So I figured it had something to do strictly with the remote port, which I was right about, when the blue wire for the "rem" terminal is unplugged from the terminal everything works fine, but when it's plugged in it goes haywire. We tried completely unhooking the remote port but it didn't change anything. Anyone have experience with the same or similar situation with the ICC, or tell me what might be going on? I know sometimes there's no explanation for why clocks are doing what they're doing, but figured I would ask. Thought about replacing the master module but we are out of those and i think they have been discontinued (ICC as well as parts for the ICC).