Fault Code F87: Sensor Softener Fault; Fault Code F88: Turbidity Sensor Fault - Miele G 1 Series Technical Information

G 1xxx/G 2xxx
Cause:
Magnet missing.
Remedy:
Replace the salt container lid.
Cause:
Reed switch magnet defective.
Remedy:
Replace the reed switch magnet.
3.42

Fault Code F87: Sensor Softener Fault

Symptom:
If this fault is registered, the program is not interrupted. The fault will only be
indicated when the fault code memory is checked in the service mode.
Background information: If this fault is registered, an emergency program
operates in which the reactivation start time and the switching points for the
EGS (electronically controlled water softener) valve are given.
Cause:
Voltage supply (approximately 9VAC) to the sensor softener 10N1
electronic or the data connection open-circuited.
Remedy:
Check the voltage supply.
Cause:
Sensor softener electronic conductivity measurement defective.
Remedy:
If no connection faults exist, replace the water diverter. See Section 050-4.10.
3.43

Fault Code F88: Turbidity Sensor Fault

If this fault is registered, the program is not interrupted. The fault will only be
indicated when the fault memory is checked in the service mode.
See Table 080-3 for other model-specific fault indications.
If this fault is registered, the program continues with default settings.
In models with software version ID -769, fault code F87 is also registered;
see Section 080-3.42.
Cause:
False or no values from turbidity sensor.
Remedy:
1. Check the turbidity sensor for correct function.
2. Replace the spray arm feed pipe with turbidity sensor, if necessary. See
Section 050-4.7.
Cause:
Foreign objects in the measurement path.
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Technical Information