1. The Chime Doesn’t Sound
   The Chime should sound on each unit approximately 5 seconds after the first button of a message has been pressed. If this does not happen, check the chime volume.
   
2. All Units Are Not Communicating
   Ensure all units are on the same channel. Also ensure no units are plugged into a power strip with surge protection and that the AC/HW switch is selected for the proper setting. If you are on a 2- or 3-phase electrical system, call Customer Service to inquire about an optional RF bridge to correct this problem.
   
3. Interference
   Ultrasonic instrument cleaners and/or computers  may cause communication signals to be blocked on some or all Comlite units. If this is happening with your system, Comlite can provide you with a filter designed to eliminate this interference. To determine if you have this interference problem, follow these steps. First, make sure each unit is working properly when the ultrasonic cleaner/computer is turned off. If so then:
   
        a.  Turn the ultrasonic cleaner on. 
        b.  Send a signal from each Comlite unit. 
        c.  An interference problem can cause these results:
              -  messages are not transmitted 
              -  the wrong lights illuminate 
              -  all stations do not clear properly

NOTE: Any stations returned for repair must be accompanied with a return authorization number and brief note explaining the problem. Return authorization numbers can be obtained by calling our Customer Service Department.