Fault Messages - Bosch ETT 8 70 Série Instructions D'emploi

6.

Fault messages

Any malfunctions detected are indicated by means of an error
message.
An error message is cleared from the display when you acknow-
ledge it. However, it will be displayed again if the cause of the
fault has not been eliminated.
If a number of faults are present at the same time, the next error
message will appear after you have acknowledged one message.
The exhaust-gas measuring instrument is only released again for
operation once all error messages have been displayed.
E r r 1 Poor throughflow
Remedy:
- Blow out sampling hose and probe with compressed air.
- Renew coarse filter GF1.
- Renew intake filter GF2.
- Start measurement again.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 2 Leakage test failed
Remedy:
- Seal leak and start leakage test again.
- Check sampling probe for leaks and fit new probe if necessary.
- Check sampling hose for leaks and fit new hose if necessary.
- Renew filters making sure that they are seated securely.
- Renew intake filter GF2 making sure that it is seated securely.
- Fit filters GF3 and GF4 tightly.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 3 HC residues in gas-sampling system or ambient air
carrying hydrocarbons (e.g. gasoline fumes).
Remedy;
- Start measurement again.
- Pull off sampling hose and blow it out with compressed air in
direction opposite to suction direction.
- Blow out sampling probe with compressed air.
- Renew coarse filter GF1.
- Renew intake filter GF2.
- Hold sampling probe in fresh air and start measurement again.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 4 Activated carbon filter is contamined with HC residues
Remedy:
- Start measurement again.
- Renew activated carbon filter (Figure 1, Item 2).
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 7 EEPROM fault
Remedy:
- Setting parameters (section 5)
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
26
E r r 9 Re-calibration using test gas is necessary
Remedy:
- Re-calibrate as described in section 5.1.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 11 Adjustment of HC signal not within tolerance band
Remedy:
- Start measurement again and initiate system check.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 12 Adjustment of CO signal not within tolerance band
Remedy:
- Start measurement again and initiate system check.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 13 Adjustment of CO
Remedy:
- Start measurement again and initiate system check.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 14 O sensor calibration faulty
2
Remedy:
- Check O sensor connector and calibrate (see Section 5.3).
2
- Renew O sensor.
2
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 15 ADU overflow
Remedy:
- Start measurement again.
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 16 Minimum O sensor voltage fallen below
2
Remedy:
- Check O sensor connector and calibrate (see Section 5.3).
2
- Renew O sensor.
2
If this does not remedy the fault, contact your Bosch After-Sales
Service Center quoting the code number.
E r r 17 Air-pressure measurement faulty
Remedy:
Contact your Bosch After-Sales Service Center quoting the
code number.
E r r 18 Flow-sensor faulty
Remedy:
Contact your Bosch After-Sales Service Center quoting the
code number.
signal not within tolerance band
2