Underhill ICC Decoder Module Troubleshooting Guide
3
Observed Field Condition
1) “I cannot water any stations from the Underhill ICC Decoder module”.
Possible Causes
a)
The Underhill Decoder Module is not seated in the controller properly,
b)
The Decoder Module is not grounded,
c)
The 2Wire path is not connected or is not making good contact,
d)
None of the station decoders are programmed or do not correspond with the
intended stations in the field.
How to Troubleshoot
1)
Confirm the Underhill ICC Decoder Module is seated properly and operating.
a.
Locate, press and hold the “Reset” button on the ICC Decoder Module as
shown for approximately 10 seconds. The Green “Accept” LED should blink
on and off for approximately 15-‐20 seconds before it extinguishes.
If the Green “Accept” LED does not blink on and off,
then remove AC power
and the 9-‐volt battery
from the ICC controller. Remove the ICC Decoder
Module and locate the brass metal tab as shown in photo below.
Using a pair of needle nose pliers, pry the tab slightly outwards. Then re-‐
install the Decoder Module and re-‐apply power to the controller. Press and
hold the “Reset” button for a 10-‐second count and confirm the Green
“Accept” LED blinks on and off for 10-‐15 seconds before it extinguishes.
Brass tab
