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Alarms and error messages 79
ERROR MESSAGES, FIXED ALARMS
HARDWARE ERRORS
Hardware errors are also shown in the status screen.
Error message Priority Cause Remedy
Pressure Sensor MEDIUM Offset values of the
sensor are outside valid
range
Device must be serviced
Sensor defective or not
connected
Temperature
Sensor
MEDIUM Value of the sensor is
outside valid range
Device must be serviced
Flow Sensor
MEDIUM Sensor defective or not
connected
Device must be serviced
Operating
Voltage
MEDIUM Values outside valid
ranges (± 5 %, except
backup battery)
Device must be serviced
O
2
Sensor LOW
Offset values of the
sensor are outside valid
range
Replace oxygen sensor
Calibration data LOW Incorrect calibration
data Device must be serviced
RTC ---
Value range
infringement in time
Device must be serviced
Flash --- Error in Flash memory Device must be serviced
RAM --- Error in RAM memory Device must be serviced
Parameter --- Value range infringe-
ment or test number
infringement in param-
eters
Check parameters, as
after this message, the
default parameters are
used; if message occurs
frequently, device must be
serviced
Table 11: Fixed alarms - software errors