LTV 1100 Operator Manual - CareFusion

HW FAULT
When the ventilator detects one of the following hardware faults, the HW FAULT alarm is generated:
The cooling fan is not operating, or the fan filter may be blocking the fan (see page 13-2 for
cleaning and installation instructions).
A problem is detected with the analog to digital converters.
A problem is detected with the flow valve.
A problem is detected with the processor.
A problem is detected with the EEPROM memory.
A problem is detected writing data to the EEPROM during system shutdown.
A problem is detected with the audible alarm circuitry.
A problem is detected with the alarm sounder.
The HW FAULT alarm may occur as a result of ESD 33 or other transient causes. If the problem is
temporary, the alarm will automatically silence when the condition clears. If the problem persists, or
you experience repeated HW FAULT alarms, immediately contact a certified CareFusion service
technician or CareFusion.
To determine the type of hardware fault detected by the ventilator, see Appendix E - Event
Trace.
When a HW FAULT alarm occurs:
The HW FAULT message is flashed in the display window.
The audible alarm is sounded.
To reset the HW FAULT alarm:
1) Push the Silence Reset button twice.
2) If the alarm occurs again, immediately contact a certified CareFusion service technician or
CareFusion.
NOTE
Repeated or continuous HW FAULT alarms may indicate a hardware failure that could prevent the
ventilator from performing within its specifications. Remove the ventilator from service and
immediately contact a certified CareFusion service technician or CareFusion.
REMARQUE
Des erreurs HW FAULT répétitives ou continuelles peuvent indiquer une panne matérielle qui
pourrait empêcher le ventilateur de fonctionner à l'intérieur des limites spécifiées. Retirer le
ventilateur du service, et contactez immédiatement un technicien de service certifié de CareFusion ou
CareFusion.
33 Electrostatic Discharge.
21106-001 Rev. E Operator’s Manual - LTV ® 1100 Ventilator 9-15