Chiller has multiple loss of
communication diagnostics.
Using TechView go into binding
view. Are there devices that are
not verified?
YES
Check for 24 VAC at J2-1 and
J2-2 on the power supply.
Check for 24 VDC at J1, J3, J4,
and J11 between pins 1 and 2.
Is the voltage within 22.8 to 25.2
VDC?
YES
Try to bind the
device(s). Did they
bind?
NO
Can you turn all the
LEDs on with a
south pole magnet?
YES
Does the light stay
on when the magnet
is removed?
YES
12
IPC Overview and Troubleshooting
NO
NO
YES
NO
NO
Reset diagnostics
Refer to Section 3-
Power supply
checkout .
Reset diagnostics
There is no Power
at the LLID.
Replace LLID
Problem could be with the LLID
bus, a connector or the LLID. If
only one LLID is not functioning
suspect the LLID or the
connector. If problem is with
multiple LLID suspect a problem
with the LLID bus or a connector
RLC-SVB05A-EN