Thoratec HeartMate III, Instructions For Use Manual, Page: 343 / 458

Alarms and Troubleshooting 7
HeartMate III Left Ventricular Assist System Instructions for Use 7-15
System Controller Hardware Fault
IMPORTANT! A backup System Controller is identical to the running System Controller. It should
remain with the patient at all times for easy access in an emergency. Refer to Backup System
Controller Overview on page 2-41 for details about the backup System Controller, including
replacement instructions. Refer to page 2-46.
Table 7.7 System Controller Hardware Fault
This is a Hazard alarm
The screen looks like this:
Behavior and appearance:
• All symbols are off, including the “pump running” symbol
( ) and wrench( ).
• Call Hospital Contact Controller Fault displays on the screen.
• The Driveline is connected and power is connected.
• Alarm tone: Constant tone.
• All Controller buttons are non-functional.
• No System Monitor communication, alarm will not appear on
the System Monitor.
Alarm means:
The microcontroller inside the System Controller is not
functioning. Power is passing directly from the source, through
the System Controller to the Pump. The Pump will continue to
operate as long as power is applied to the System Controller and
no other malfunction occurs. All other monitoring and alarms are
not functional (including an indication of pump operation).
To resolve alarm:
Patients must call their hospital contact immediately for diagnosis
and instructions. Switch to the backup System Controller if
instructed to.
Clinicians should:
1. Switch to the backup System Controller
2. Provide patient with a new System Controller
Alarm silence period: None. The audio tone cannot be silenced.