Underhill ICC Decoder Module Troubleshooting Guide
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12) “I cannot remember how to program a decoder.” ....................................................... 14
13) “The Hunter ICC controller runs every station for about 3 seconds, then moves
onto the next station until all stations have operated. This occurs in both manual
operation of a single station or during a scheduled start time”. .................................... 15
14) “I’m new to this site and there are no “As-‐built” drawings denoting the valve
locations. I can’t locate or irrigate some stations. Will a cable detector I use to
locate wire for a multi-‐wire controller work to locate the 2Wire path? ...................... 15
15) “I have a master valve that has its own separate wire path from the Hunter ICC
controller. I need to add a new station, which I connected to the wire path for the
master valve with a decoder but the station does not operate. I can hear the
solenoids buzzing, but neither valve will open.” .................................................................. 16
16) “Stations will come on randomly, out of numerical sequence and may not be
associated with a scheduled start time. Others times a station will start on a
scheduled start time and another station will operate at the same in a random
order.” ................................................................................................................................................. 16
17) “I replaced the ICC module recently and came back to the controller only to
determine the ICC module is no longer operating. Why do I keep “blowing-‐up” ICC
modules?” .......................................................................................................................................... 17
18) “Is there a method to troubleshoot a break in the 2Wire path? ............................. 19
19) “Stations 1-‐6 operate ok, but when station 07 is operated manually, other
stations higher than 07 will operate at the same time.” .................................................... 20