I have a rainbird ESP Modular controller. It hasn't run in several months but it was working fine last time it ran. It has 2 modules. The main one with 4 zones works fine. When I set the switch to 5, 6 or 7 to set the time on those zones, the display says NOMOD 1 like there isn't a module there. I have removed the module and reseated it. I have rebooted and reset the controller. Still showing the same thing. The only thing I know to try at this point is to buy a new module hope its just a bad module.