GE Giraffe OmniBed Carestation CS1, Service Manual

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Chapter 6: Alarms and System Failure Codes
System Failure Codes
Service Manual 6-23
6.2.29 System Failure 35
System failure 35 indicates: Wrong dipswitch set up.
6.2.30 System Failure 36
System failure 36 indicates: LV1 differs from LV2 by >10% of LV2.
6.2.31 System Failure 37
System failure 37 indicates: Defective Switches (software 1.60 or higher).
Cause(s) Action(s)
Switches set wrong Check the 8 position dipswitch on the control board. Verify that Switch 1
and Switch 2 are on.
Defective control board Replace control board.
Cause(s) Action(s)
Mains Voltage Comp
Circuit is not calibrated
correctly. Calibrate the line voltage.
Defective 50-pin ribbon
cable between the relay
and control board. Check for continuity on pin 48 and 49 (LineComp1,2) If defective replace
cable.
Defective relay board. Measure the voltages at the relay board:
•
J37 pin 48-45 and J37 pin 49-45.
• If mains voltage 100/115 = 3-5 volts, difference within 0.4 volts.
• If mains voltage 230 = 7-10 volts, difference within 0.8.
• If not, replace the relay board.
Defective control board. If the voltages are OK, replace the control board.
Cause(s) Action(s)
Both canopy up and
canopy down position
switches are closed. Use the service screen to determine which switches are on. Use an
ohmeter to test the switches and cabling.