Miele G 1 Series Technical Information page 142

Technical Information
second intervals for one hour. The drain pump will also be activated at
intervals to prevent the possibility of the appliance overflowing. All other
components remain inactive. If these attempts to achieve the minimum pulse
rate fail, the buzzer is activated for 2 minutes.
See Table 080-3 for model-specific fault indications.
Cause:
On-site shutoff valve (water supply) closed.
Remedy:
Open the shutoff valve.
Cause:
On-site water supply not in order (water pressure below 14.5 pounds per
square inch).
Remedy:
The on-site water supply should be checked by a specialist.
Cause:
Flow meter B3/4 is not providing any pulses.
Remedy:
1. Remove the left side panel (Section 010-4.1).
2. Check that the circuit board with reed switch on flow meter B3/4 is seated
correctly.
3. Check that the reed switch connection plug is seated correctly.
4. Replace the reed switch, if necessary.
5. 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 still displayed, replace the
electronic board (Section 100-4.5 or 100-4.6).
6. Check the control lead from the electronic to flow meter B3/4.
7. Replace the water diverter, if necessary. See Section 050-4.10.
Cause:
Flow meter electrical connection open-circuited.
Remedy:
1. Check the wires to the flow meter reed switch for continuity.
2. Check the plug connections.
Cause:
WaterProof System valve filter is clogged.
Remedy:
1. Disconnect the dishwasher from the power supply.
2. Close the water supply valve.
3. Unscrew the WaterProof System from the water supply valve.
4. Remove the washer from the threaded union.
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G 1xxx/G 2xxx