Elan C2 Communications Controller, Installation Manual, Page: 58 / 73

E L A N H O M E S Y S T E M S
INSTALLATION MANUAL
Page 56 © ELAN Home Systems 2009 • All rights reserved.
C2
Table 4-5 C2 Volume Control Troubleshooting Procedures
Symptom Possible
Cause/s What an authorized installer can do
Volume controls
do not
work when
page or Door
Chime is
sent. VCO- and
VCO+ may be
reverse wired,
or power + and
- may be
reversed. 1. Confirm symptom and homeowner’s findings regarding.
2. Verify that VCO+ and VCO-polarity is wired properly.
3. Verify power supply polarity is wired properly.
4. Enter a page or press a Door Station doorbell to verify
problem corrected.
If problem still exists, call ELAN Technical Support at 1-800-
622-ELAN.
5. Meter for 12V on VC override on C2.
Cannot hear
Page or Door
Chime when
volume controls
are
turned down. 1. Page &
Doorbell Override
feature is
not working.
2. VCO- and
VCO+ may be
reverse wired,
or a power
and -
may be
reversed. 1. Confirm symptom.
2. Verify that VCO+ and VCO- connections for the overrides
are connected properly and polarity is maintained to the VCO
removable connectors on the back of the C2.
3a. Rotary Volume Controls - Ensure that the Override Volume
Jumpers are properly set for rotary volume controls.
3b. Electronic Volume Controls - Verify that the Override Volume
settings are properly set.
4. Verify that the power supply (internal or external) is connected
properly and is providing the voltage and current necessary
to power the volume controls. Contact ELAN Technical
Support from the job site at 1-800-622-ELAN, if voltage is
present.
5. Meter for 12V on VC+ and VC- at the volume control.
Table 4-6 C2 Hum Troubleshooting Procedure
Symptom Possible
Cause/s What an authorized installer can do
Noise or hum
in phone earpiece. Ground Loop 1. Remove any fax machines, answering machines, DSS/
Cable Boxes or any other equipment connected to the phone
system.
2. Bypass the C2 RJ-11 connection with an RJ-ll jumper or
power off the C2.
If the problem clears during the above checks, a ground loop
exists between the power circuit for the C2 and the phone
system or connected equipment. Have a licensed electrician
check and repair grounding for the homes electrical system.
Technical Support
If, after carefully following the steps in the Troubleshooting section, you are
unable to resolve issues with the installation or operation of the C2, please call
ELAN Technical Support at 1-800-622-ELAN (3526).