Respironics BiPAP Service Manual page 62

Chapter 5
Diagnostic Mode and Troubleshooting
Event ID
343 BATTERY FAULTY OR
MISSING
The screen should also display
BATTERY FAULTY OR
MISSING
344 BATTERY CHARGER FAULT
The screen should also display
BATTERY CHARGER FAULT
345 POST BATTERY THERMISTOR
FAILURE
The screen should also display
BATTERY THERMISTOR
FAILURE
4XX: Continuous built-in test (CBIT) codes
401 CBIT MON. RAM FAIL
402 Unused
403 CBIT MON. CRC FAIL
404-408 Unused
409 INDICATOR FAIL
410-416 Unused
417 CBIT HIGH TEMP. ALARM
418 Unused
5-30
Table 5-3: Significant Event Codes (Continued)
Comment / Corrective Action
User interface processor detected that the battery charger ready signal test failed
during POST.
1. Check battery connection.
2. See section 4.4.4 for instructions on recharging a depleted battery.
3. Enter Diagnostics mode and use the Sensor Readings screen to check battery
charger status.
4. Replace the battery.
5. Replace the user interface PCB.
User interface processor detected that the battery fault ready signal test failed
during POST.
1. Enter Diagnostics mode and use the Sensor Readings screen to check battery
charger status.
2. Replace the battery.
3. Replace the user interface PCB.
User interface processor detected that the battery thermistor test failed during
POST.
1. Ensure that the ventilator is at room temperature or within operating
specifications.
2. Verify that the battery is present.
3. Check the battery wiring for shorts or opens.
4. Enter Diagnostics mode and use the Sensor Readings screen to check voltage
and ADC readings.
5. Replace the battery.
6. Replace the user interface PCB.
User interface processor detected that the RAM memory test failed during CBIT.
1. Replace the user interface PCB.
User interface processor detected that the UI program memory checksum test
failed during CBIT.
1. Replace the user interface PCB.
User interface processor detected that the led test failed during CBIT.
1. Replace the user interface PCB.
User interface processor detected high enclosure temperature (> 58
1. Ensure that the system is at room temperature or within operating
specifications.
2. Enter Diagnostics mode and use the Sensor Readings screen to check the
temperature and ADC readings.
3. Replace the user interface PCB.
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
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C)
REF 1029568 Rev B