This is most often due to interference or the battery.

Start by replacing the battery of your remote control unit or wireless switch.

If the problem has not been resolved, please reinstall your receiver by pressing the learn button on the receiver for 6-10 seconds until the LED starts to flash rapidly, release and press the same button again briefly.   This operation deletes the memory of the receiver and allows it to "reset".  Then reinstall your remote control unit and other emitters.  

If the problem persists, do not hesitate to contact us using the contact form at chacon.com/support