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OWNER’S MANUAL
Response: The cause of failure must be identified and corrected prior to starting the
sterilization cycle.
6.5. PURGE PUMP FAILURE: Failure of the purge pump during the self test portion of
the cycle will show the PURGE PUMP FAILURE message on the screen.
Possible causes of PURGE PUMP FAILURE during self test and remedies:
• Tubing inside the bottom cabinet has become disconnected or the sterilization bag is
not properly secured to the purge tube bobbin with the Velcro strap. Reconnect tub-
ing, recheck the integrity of the sterilization liner bag and retighten the Velcro strap.
• The purge pump failed to generate the required vacuum. Replace the purge pump.
• The purge tubing became disconnected inside the top cabinet. Reconnect purge tub-
ing.
• Exhaust tubing from purge pump is blocked. Remove obstruction.
Response:
The cause of failure must be identified and corrected prior to starting the
sterilization cycle.
6.6. COOLING FAN FAILURE: Failure of the cooling fan located in the center rear of
the top cabinet during the self test portion of the cycle will show the COOLING FAN
FAILURE message on the screen.
Possible causes of COOLING FAN FAILURE during self test and remedies:
• If the fan is running, the cooling fan blade may be partially or completely obstructed.
This is indicated by a RPM value of less than 70% on the self test screen on the
previous page. Remove the obstruction, clean the filter and reinitiate the self test.
• If the fan is running but the indicated RPM value is 0%, the white feedback wire
from the fan may not be properly connected to the PC board. Check connection.
• If the fan is not running, check the connection of the red and black lead wires to the
PC board. If they are properly connected, check the voltage at the PC board
connector for the red and white wires. If you obtain a reading of 6 VDC, replace the
fan. If you obtain a reading of 0 VDC, the PC board may need to be replaced.
6.7. ABATOR FAILURE: Failure of the abator pump during the self test portion of
the cycle will show the ABATOR FAILURE message on the screen.
Possible causes of ABATOR FAILURE during self test and remedies:
• If the BNC Connector on the back of the AN 74 I is not attached to the sterilizer or to
the Abator, the Abator pump will not start. Check the connection. Listen to the
Abator to determine if the pump is starting when START is pressed.
• Check for an obstruction in the tubing between the sterilizer and abator. If there is a
complete obstruction it can cause an abator failure. Remove the obstruction and
repeat the self test.
•
The abator pump may have failed. It will need to be replaced to continue.
© Andersen Products Ltd