Chapter 6
6-18
BiPAP Vision Service Manual © Respironics, Inc.
1062788
Troubleshooting
B0E
Graph size error: invalid X or Y length (<0).
Replace DC board.
B0F
Graph structure unavailable: attempt to
initialize a fourth graph.
Replace DC board.
B10
Spurious key pad interrupts: more than 10
interrupts in a row with no key press.
1. Replace touch pad.
2. Replace DC board.
11D1
Touch pad error: key press during startup tests
or held down for longer than 10 s.
1. Replace touch pad.
2. Replace DC board.
11D7
Invalid startup test: invalid test case data.
Replace DC board.
11D8
Invalid BIST test: invalid built-in self test
(BIST) case data.
Replace DC board.
Vent Inop errors specific to MC board:
206
Real time clock (RTC) error: invalid data on
RTC case
signal or serial peripheral interface
(SPI) timeout when attempting to get time.
Replace MC board.
207
Illegal operational test: test does not exist.
Replace MC board.
209
+12 V out of range: ADC voltage test.
Replace MC board.
20A
-12 V out of range: ADC voltage test.
Replace MC board.
20B
+24 V out of range: ADC voltage test.
Replace MC board.
20C
Reference voltage (Vref) out of range: ADC
voltage test.
Replace MC board.
20D
ADC could not 12 V value: ADC
voltage test.
Replace MC board.
20E
ADC could not return -12 V value: ADC voltage
test.
Replace MC board.
20F
ADC could not 24 V value: ADC voltage
test.
Replace MC board.
210
ADC could not return Vref value: ADC voltage
test.
Replace MC board.
211
Power failure without AC failure: loss of bulk
supply without loss of AC input caused by PSI
trip.
1. Replace MC board.
2. Replace PSS.
3. Replace PC board.
Table 6-4: Troubleshooting
Vent Inop
Error Codes
Error code
Description
Corrective action