Respironics BiPAP Service Manual page 63

Event ID
419 CBIT HIGH TEMP. VIO
420-425 Unused
426 CBIT LOW TEMP. ALARM
427-431 Unused
432 3.3V VOLTAGE RAIL FAILED
433 5.0V VOLTAGE RAIL FAILED
434 12V VOLTAGE RAIL FAILED
435 18VIN VOLTAGE RAIL FAILED
436 CBIT 18VBOOST MONITOR
FAIL
REF 1029568 Rev B
Table 5-3: Significant Event Codes (Continued)
Comment / Corrective Action
User interface processor detected that the enclosure high temperature test failed
during CBIT (> 60
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
temperature and ADC readings.
3. If the problem persists replace the user interface PCB.
UI processor detected low enclosure temperature (< 0
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
temperature and ADC readings.
3. Replace the user interface PCB.
User interface processor detected that the 3.3V test failed during CBIT.
1. If running on battery, ensure that the battery is fully charged.
2. Check if the problem occurs during AC and battery operation.
3. Enter Diagnostics mode and use the Sensor Readings screen to check the
voltage and ADC readings.
4. Replace the user interface PCB.
User interface processor detected that the 5.0V test failed during CBIT.
1. If running on battery, ensure that the battery is fully charged.
2. Check if the problem occurs during AC and battery operation.
3. Enter Diagnostics mode and use the Sensor Readings screen to check the
voltage and ADC readings.
4. Replace the user interface PCB.
User interface processor detected that the 12V test failed during CBIT.
1. If running on battery, ensure that the battery is fully charged.
2. Check if the problem occurs during AC and battery operation.
3. Enter Diagnostics mode and use the Sensor Readings screen to check the
voltage and ADC readings.
4. Replace the user interface PCB.
User interface processor detected that the 18VIN test failed during CBIT.
1. Check if the problem occurs during AC and battery operation.
2. Enter Diagnostics mode and use the Sensor Readings screen to check the
voltage and ADC readings.
3. Replace the user interface PCB.
User interface processor detected that the 18VBOOST test failed during CBIT.
1. If running on battery, ensure that the battery is fully charged.
2. Check if the problem occurs during AC and battery operation.
3. Enter Diagnostics mode and use the Sensor Readings screen to check the
voltage and ADC readings.
4. Replace the user interface PCB.
BiPAP Focus Ventilator Service Manual © Respironics, Inc.
Diagnostic Mode and Troubleshooting
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C).
Chapter 5
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C).
5-31