anyone ever heard of these kinds of problems with these stats??????
2 stats, 2 problems i havent seen or heard of before.
1st one was a honeywell t-7300. After the spring startup was done, there were two problems with units being locked out in the morning and not working. After troubleshooting a machine in one of my buildings.I suspected that the stat would randomly come on in the middle of the night and lock one of the units off on high pressure (towers and pumps are shut down). The occupied/unoccupied times and temperatures were correct for each day. Customer didnt want to buy a new stat so i installed one of those mechanical paragon time clocks to break the Y wire when the pumps and tower are off at night. It solved the problem.
second stat was a honeywell t-7350. same deal. came in and unit locked out every morning. ok terrific. Problem with this was that when the unit switched to unoccupied, it copied the occupied temp setting of 73 degrees (unoccupied was set to 99 degrees). At a glance all the programming for dates times and temps were correct to keep the unit on during the day and off at night when the towers are down. replaced the stat, programmed to same times, and waaaallllaaaaa, works great
also, im not crazy about needing a pda to set the heat pump settings for the o/b terminals on this either....