Underhill ICC Decoder Module Troubleshooting Guide
9
Observed Field Condition
4) “I have an 8-‐station Hunter ICC in which 7 stations are used. This installation also
has an Underhill 2Wire module in the second station module space and I cannot
operate station 08 from the 2Wire Decoder”.
Possible Reasons
The Underhill Decoder module begins with station 09, 17 or 26 depending on how
many existing Hunter station modules are present.
How to Troubleshoot
Remove the station decoder that will not operate and reprogram to another un-‐used
station number above 08. Then re-‐install in the field and confirm operation from
MANUAL mode.
Observed Field Condition
5) “The Hunter ICC is using 11 stations with two station modules and this installation
also has an Underhill 2Wire module in the third space. I cannot operate stations 12-‐
16”.
Possible Cause
The Underhill Decoder module once installed begins with station 17 or 26 depending
on where the Hunter station modules are installed.
How to Troubleshoot
Remove the station decoders that have been programed from 12-‐16 and re-‐program to
stations higher than the last station using station decoders. Confirm their operation
by operating in MANUAL mode once re-‐installed.
Observed Field Condition
6) “When operating a manual “test” sequence on the Hunter ICC, stations will turn
“On” for about 15-‐25 seconds, but then turn off and move to the next station and
repeat the same condition. The red LED “Error” light illuminates.”
Possible Causes
Something has happened to the ICC Decoder, or a decoder is not programmed properly
and/or there is a break in the 2Wire path downstream of the controller
How to Troubleshoot
Troubleshooting the observed field condition should start first with isolating if the
issue is with the Hunter ICC controller or the ICC Decoder. There are two very quick
troubleshooting methods to quickly make this determination:
a)
If there is a Hunter 8-‐station module available or in use, wire a solenoid to any
station on the module and to the “C” or common terminal. Operate the
corresponding station from the ICC controller. If the solenoid “buzzes”, then
ICC is most likely working.
b)
Disconnect any 2Wire communication cable connected to L1/L2 on the ICC
decoder. Connect a pre-‐programmed decoder module’s red and black wires
