CD-W00-00-0 Wall Mount CO
2
Transmitter Installation Instructions
5
Troubleshooting
The transmitter is not field-repairable.
In the event the unit is not functioning properly, use the
following checklist to identify the symptoms and
determine a solution.
1. Verify that the unit is mounted properly and the
appropriate output jumper is selected.
2. Verify that all wiring is correct.
3. Verify that the power supply voltage level is
20 to 30 VAC or 18 to 30 VDC.
Note:
The diagnostic Light-Emitting Diode (LED), V7
located on the right side of the PCB, lights up
if the self-diagnostics procedure detects an
abnormality.
If the transmitter will not operate after completing
these steps, replace the unit.
