Fault Code F15: Water Intake Fault - Hot Water; Fault Code F18: Flow Meter Stationary State Monitor B3/4 - Miele G 1 Series Technical Information

G 1xxx/G 2xxx
5. Using a multimeter, place the probes onto the heater pressure switch sensing
leads off of connector ST5 on the electronic board. During circulation pump
operation you should read no voltage at these points. If 120VAC is measured,
replace the heater pressure switch (Section 050-4.20).
Cause:
Circulation pump capacitor defective.
Remedy:
Check the pump capacitor and replace it if necessary. See Section 050-4.19.
3.17

Fault Code F15: Water Intake Fault - Hot Water

Symptom:
The display reads Intake temperature too low and the status LED flashes
(model-dependent). The program is not interrupted.
Cause:
Intake temperature of the hot-water connection is too cold (below 100°F).
Remedy:
Have the water connection checked by a specialist.
3.18

Fault Code F18: Flow Meter Stationary State Monitor B3/4

Symptom:
The program is interrupted and the drain pump is operated.
See Table 080-3 for model-specific fault indications.
Background information: The water inlet valve is open when it should not
be (a signal to open it has not been given by the electronic). Water then flows
into the appliance and unexpected pulses from the flow meter are detected.
Unexpected pulses from the flow meter are also detected when the water
inlet valve is not activated.
Cause:
Water inlet valve defective.
Remedy:
Check the water inlet valve for proper operation (may be stuck in open position).
a. Access the water inlet valve.
b. Start a wash program.
c. Wrap your hand around the inlet valve during the water inlet step. You
should feel a vibration indicating that the valve is energized.
d. At the end of the water inlet step, the valve should be de-energized. If water
is still entering the machine, replace the water inlet valve (Section 050-4.2)
e. Check for interference pulses. Electrical components within the water
diverter could be interfering with the pulses produced by the flow meter.
Troubleshoot accordingly and replace the water diverter if necessary
(Section 050-4.10).
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Technical Information