B
I
PAP S
YNCHRONY
S
ERVICE
& T
ECHNICAL
I
NFORMATION
T
ROUBLESHOOTING
& D
IAGNOSTICS
- P
AGE
21
1032443, R
EV
. 00
Error
Code
Description of Error
Probable Cause
Corrective Action
E23
Invalid Zero Flow Value in
Calibration Table
Improper Calibration
Occluded or Restricted
Flow Tube
Defective Flow Sensor
Recalibrate
Replace Flow Tube
Replace Main PCA
E24
Unrecognized Version of
Calibration Table
Improper Calibration
Defective FLASH chip
Recalibrate
Replace Main PCA
E25
Excessive Drift on Flow
Sensor
Improper Calibration
Occluded or Restricted
Flow Tube
Defective Flow Sensor
Recalibrate
Replace Flow Tube
Replace Main PCA
E26
Communications Failure with
LCD Driver Chip
Defective LCD Driver Chip
Replace Main PCA
E27
Excessive Drift on Outlet
Pressure Sensor
Occluded or Restricted
Pressure Tube
Defective Pressure Sensor
Replace Pressure
Tubing
Replace Main PCA
E28
Empty Calibration Table
Improper Calibration
Defective FLASH Chip
Recalibrate
Replace Main PCA
E29
Excessive Drift on Blower
Pressure Sensor
Occluded or Restricted
Pressure Tube
Defective Pressure Sensor
Replace Pressure
Tubing
Replace Main PCA
E30
Unrecognized Version of
Parameter Storage
Normal for First Time
Power Up
Defective EPROM
Remove and
Restore Power
Replace Main PCA
E31
Un-repairable Parameter
Storage
Defective EPROM
Replace Main PCA
E32
Corrupt Parameter Storage
Normal for First Time
Power Up
Defective EPROM
Remove and
Restore Power
Replace Main PCA
E33
Excessive Parameter Storage
Size
Defective FLASH or RAM
chip
Replace Main PCA
E34
Unable to Queue Data to
Parameter Storage
Defective EPROM,
FLASH, or RAM chip
Replace Main PCA
E35
Unable to write to parameter
storage
Defective EPROM
Replace Main PCA
E36
Parameter Out of Range
Defective EPROM
Replace Main PCA
E37
Corrupt Real-Time Clock
Value
Defective Microprocessor
Replace Main PCA