Underhill ICC Decoder Module Troubleshooting Guide
14
Observed Field Condition
12) “I cannot remember how to program a decoder.”
Solution
Insert the new decoder’s red and black wires into the red and black terminals labeled
“Decoder Programmer”. These terminals look like a speaker wire terminal.
Turn the main menu dial on the Hunter ICC controller to “Manual – Single Station”.
Press the right arrow button to select the station number. Locate and press the “+”
button to add some time to the corresponding station.
Press and hold the “Reset” button on the Underhill ICC decoder until you see the green
LED flash, see figure below. Then turn the main menu knob on the Hunter ICC to the
“RUN” position and observe the green LED flashing again.
Press and hold the “Reset” Button on the ICC Decoder Module
The decoder is now programmed.
To confirm the decoder is programmed properly, remove it from the red and black
speaker wire connections and connect to the L1/L2 terminals below. Make sure to
temporarily disconnect the existing 2Wire path out to the valves in the field. With a
working solenoid, connect to the two yellow wires on the decoder.
Operate the corresponding station manually and the solenoid should “buzz”. If it
doesn’t buzz, then select station 01 and operate manually. If the decoder “buzzes”,
then it wasn’t programmed initially. Repeat the steps above.