System Error/Limited Function

SpO2 Not Working 

Verify the Responder 2000 has a SpO2 Main Board installed.  Check the About screen. “SpO2 - - - -” indicates a non-SpO2 Main Board is installed in the unit.  1. Connect the Responder 2000 to a SpO2 simulator with the appropriate sensor.  If the Responder 2000 SpO2 display does not agree with the simulator setting, substitute a known good SpO2  sensor.  2. Check SPO2 cable.  3. Check cable from Front Panel to SPO2 Board.  4. Replace SPO2 Board.  5. Replace Main Board   Here is a link to the service manual

If the shock is unsuccessful:    1. Replace the Paddles/Pads/Spoons.  2. Check the cables between the Rear Panel and the Therapy Board.  3. Check the cable between the Therapy Board and the Main Board.  4. Replace the Therapy Board.  5. Replace the Main Board.

****Main board probably suspect. Check all connections.

http://www.frankshospitalworkshop.com/equipment/documents/defibrillators/service_manuals/GE_Responder_2000_-_Service_manual.pdf

hope this helps