Cause(s) Action(s)
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, diî ºerence
within 0.4 volts.
• If mains voltage 230 = 7-10 volts, diî ºerence within
0.8.
• If not, replace the relay board.
Defective control board. If the voltages are OK replace the control board.
4.4.27 System Failure 33
System failure 33 indicates: Defective RH Solid State Relay.
Cause(s) Action(s)
Defective RH Solid State Relay. Replace relay board
4.4.28 System Failure 34
System failure 34 indicates: Software revision level does not match.
Cause(s) Action(s)
The software revision of the control board and the
display board are not compatible
This error may occur after replacing the control/display board.
Be sure to install the software provided in the control/display
board. Replace the System Software.
4.4.29 System Failure 35
System failure 35 indicates: Wrong dipswitch set up.
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.
4.4.30 System Failure 36
System failure 36 indicates: LV1 diî ºers from LV2 by >10% of LV2.
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.
52 6600-0343-000 104 © 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 4: Troubleshooting
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