Revision B SEER Light Ambulatory Recorder/Controller 3-7 
2019818-008
SEER Light/SEER Light Extend Controller: Troubleshooting
ECG Cannot be Previewed with the Controller (I.R.)
Preview ECG with the cable. 
Cannot preview ECG by I.R. 
operation over 3 minutes after 
recording started.
ECG cannot be previewed 
with the controller (I.R.) 
Communication Error
Is the distance from 
the recorder within 
4.9 ft. (1.5 m)?
Position the recorder 
within 4.9 ft. (1.5 m).
Is the I.R.
window facing the 
recorder properly?
Reposition the I.R. window 
properly to the recorder, 
or remove any obstacle 
between the recorder and 
the controller.
Has recording 
already started?
No
Yes
Yes
No
No
Yes
Call GE service.