Miele G 1 Series Technical Information page 144

Technical Information
Cause:
Flow meter B3/4 is providing too few pulses.
Remedy:
1. Check WPS valve Y2 (filter, restrictor disc).
2. Remove the left side panel (Section 010-4.1).
3. Check that the plate with the reed switch on flow meter B3/4 is seated
correctly.
4. Check that the reed switch connection plug is seated correctly.
5. Replace the reed switch, if necessary.
6. Check the flow meter for pulses.
a. While the appliance is in operation and no pulses are delivered, take a
magnet and pass it over the reed switch. If a pulse is then delivered,
replace the water diverter. If no pulse, replace the reed switch.
b. While the appliance is in operation and pulses are delivered,
reconnect the electrical connector to the electronic board, clear the
fault and operate the appliance. If an F12 is then displayed, replace
the electronic board (Section 100-4.5 or 100-4.6).
7. Check the control lead from the electronic to flow meter B3/4.
8. Replace the water diverter, if necessary. See Section 050-4.10.
Cause:
Filter in WPS clogged.
Remedy:
1. Disconnect the appliance from the power supply.
2. Close the on-site water supply.
3. Unscrew the WPS from the on-site water supply.
4. Remove the washer from the threaded union.
5. Remove the filter with needlenose pliers.
6. Clean or replace the filter as necessary (see Section 050-4.1).
Cause:
On-site shutoff valve (water supply) closed.
Remedy:
Open the shutoff valve.
Cause:
Water inlet valve defective.
Remedy:
Check the water inlet valve for proper operation by performing the following
steps:
1. Ensure that the water supply is open and that there is access to the valve
housing.
2. Select and start a wash program.
3. After the drain step (30 seconds), the water inlet step will begin. Wrap
your hand around the valve housing. If you feel a mild vibration, then the
valve is receiving power. Replace the WPS valve (Section 050-4.2). If not,
then go to the next step.
4. Remove the drip pan and check the electrical connector to the inlet valves
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G 1xxx/G 2xxx