All Miele Dishwasher Error Codes. How To Activate Service Mode?

Having trouble with Miele Dishwasher error codes? Are your Intake/Drain lights flashing and the dishwasher keeps beeping?

Don’t worry, we are here to help.

This article will guide you on how to identify the cause of the problem and how to fix it.

First of all, you need to know the model number of your dishwasher, because different models have different procedures on how to ENTER SERVICE MODE. Further in the article, you will find a LIST OF ERROR CODES for your Miele dishwasher.

How To Enter Service Mode on Miele Dishwasher?

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• How To Enter Service Mode on Miele Dishwasher?
  • For Miele Dishwasher Error Codes with Inspira and Advanta – G 118x/G 2170/G 218x
  • For Miele Dishwasher Optima – G 1202
  • For Miele Dishwasher Optima – G 1262
  • For Miele Dishwasher Optima – G 1470/G 2470
  • For Miele Dishwasher Optima – G 1472/G 2472
  • For Miele Dishwasher Advanta – G 2020
  • For Miele Dishwasher Inspira and Diamante – G 2120/G 214x/G 2150
  • For Miele Dishwasher Optima – G 2420/G 243x
  • For Miele Dishwasher Excella – G 2630/G 2670
  • For Miele Dishwasher Excella – G 2732
  • For Miele Dishwasher LaPerla – G 283x/G 2872
• Miele Dishwasher Error Codes
  • • Error Code F01 or F02: Water/Heating NTC or Leads Short-Circuited
    • Error Code F11: Drainage Fault
    • Error Code F12: Water Intake Fault at Start of Step
    • Error Code F13: Water Intake Fault at End of Step
    • Error Code F14: Water Intake Fault: Heater Pressure Switch
    • Error Code F15: Water Intake Fault – Hot Water
    • Error Code F18: Flow Meter Stationary State Monitor B3/4
    • Error Code F19: Flow Meter B3/4 Stiff and Not Turning Freely
    • Error Code F24: Heater Relay Contact
    • Error Code F25: Target Temperature Fault
    • Error Code F26: Boiling Protection
    • Error Code F32: Door Lock Does Not Close
    • Error Code F33: Door Lock Does Not Open
    • Error Code F36: Door Lock Switch Defective
    • Error Code F40: Electronic Fault
    • Error Code F42: Line Frequency Registration Fault
    • Error Code F47: Faulty Interface Between Selection-Display Electronic (BAE) & Control-Power Electronic (SLT)
    • Error Code F51: Heater Pressure Switch
    • Error Code F52: Heater Pressure Switch Has Reset During Heating
    • Error Code F53: Speed Sensor Fault
    • Error Code F63: Slide Shutter Fault
    • Error Code F67: Circulation Pump Speed Too Low
    • Error Code F68: Circulation Pump Operating After Shutoff
    • Error Code F69: Circulation Pump Blocked
    • Error Code F70: Float Switch Fault
    • Error Code F78: Circulation Pump Fault
    • Error Code F79: Circulation Pump Interaction Fault
    • Error Code F84: Slide Shutter Positioning Fault
    • Error Code F85: Slide Shutter Signal Change Fault
    • Error Code F86: Salt Container Lid Contact Fault
    • Error Code F87: Sensor Softener Fault
    • Error Code F88: Turbidity Sensor Fault
    • Error Code F91: Load Size Registration Inactive

For Miele Dishwasher Error Codes with Inspira and Advanta – G 118x/G 2170/G 218x

Initial requirements:

1. Open the door.
2. Switch off the appliance.
3. Press and hold the Program button.
4. Switch on the appliance.
5. Release the Program button.
6. Immediately press the Program button 3 times; on the 3rd time, hold until the “Rinse & Hold” LED flashes.
7. Release the Program button.
8. If the “Rinse & Hold” LED does not light up, repeat the procedure.The “Rinse & Hold” LED should flashes slowly (1 flash per second) indicating successful enter

Press the Program button 1x. If the “SaniWash” LED displays a fault, check if further faults were registered. Press and hold the Program button until the “Intake/Drain” LED lights up. Then briefly press the Program button. To delete the fault code memory, press and hold the Program button until the “Intake/Drain” LED lights up. Then press and hold the Program button until the “SaniWash” LED goes out.

The “Intake/Drain” LED flashes 1x rapidly. If faults were registered, they are indicated by the “SaniWash” LED. (Example: Fault code F14: The “SaniWash” LED flashes 1x slowly and 4x rapidly at intervals). “SaniWash” LED is off: No faults stored.

For Miele Dishwasher Optima – G 1202

Initial requirements:

1. Close the door.
2. Switch off the appliance. Accessing:
3. Press and hold the Start/Stop button.
4. Switch on the appliance.
5. Release the Start/Stop button.
6. Immediately press the Start/Stop button 3 times; on the 3rd time, hold until the “Start/Stop” LED flashes.
7. Release the Start/Stop button.
8. If the “Start/Stop” LED does not light up, repeat the procedure. Acknowledgment indicator: The “Start/Stop” LED flashes slowly (1 flash per second).

Press the Delay Start button 1x. The “Delay Start” LED flashes 1x quickly intermittently. Press the Start/Stop button. Press it again to display saved faults. To delete the fault memory, press the Start/Stop button again and hold it for 4 s.

“Rinse” LED is off or flashes. The display shows F and a fault code number alternately. If the fault memory is empty, F and 0 are displayed alternately.

For Miele Dishwasher Optima – G 1262

Initial requirements:

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1. Open the door.
2. Switch off the appliance.
3. Press and hold the Program button.
4. Switch on the appliance.
5. Release the Program button.
6. Immediately press the Program button 3 times; on the 3rd time, hold until the “Rinse & Hold” LED flashes (1 flash per second).
7. Release the Program button.
8. If the “Rinse & Hold” LED does not light up, repeat the procedure.

Press the Tab button 1x. The “Tab” LED flashes 1x quickly intermittently. Press the Program button Press it again to display fault codes that may have been saved. To delete the fault memory, press the Program button again and hold it until F 0 is displayed.

The display shows F and a fault code number alternately. If the fault memory is empty, F and 0 are displayed alternately.

For Miele Dishwasher Optima – G 1470/G 2470

Initial requirements:

1. Open the door.
2. Switch off the appliance. Accessing:
3. Press and hold the Program button.
4. Switch on the appliance.
5. Release the Program button.
6. Immediately press the Program button 3 times; on the 3rd time, hold until the “Rinse & Hold” LED flashes.
7. Release the Program button.
8. If the “Rinse & Hold” LED does not light up, repeat the procedure. The “Rinse & Hold” LED flashes slowly (1 flash per second).

Press the GEL button once. The “GEL” LED flashes once quickly intermittently. Press the Program button. Press it again to display fault codes that may have been saved. To delete the fault memory, press the Program button again and hold it for 4 s.

The display shows F and a fault code number alternately (for a list of fault codes, see the service manual). If the fault memory is empty, F and 0 are displayed alternately.

For Miele Dishwasher Optima – G 1472/G 2472

Initial requirements:

1. Open the door.
2. Switch off the appliance.
3. Press and hold the Program button.
4. Switch on the appliance.
5. Release the Program button.
6. Immediately press the Program button 3 times; on the 3rd time, hold until the “Rinse & Hold” LED flashes.
7. Release the Program button.
8. If the “Rinse & Hold” LED does not light up, repeat the procedure. The “Rinse & Hold” LED flashes slowly (1 flash per second).

Press the options button once. The “Tab” LED flashes once quickly intermittently. Press the Program button. Press it again to display fault codes that may have been saved. To delete the fault memory, press the Program button again and hold it for 4 s.

The display shows F and a fault code number alternately (for a list of fault codes, see the service manual). If the fault memory is empty, F and 0 are displayed alternately.

For Miele Dishwasher Advanta – G 2020

Initial requirements:

1. Close the door.
2. Switch off the appliance.
3. Turn the selector switch to the 12 o’clock position.
4. Press and hold the Start/Stop button.
5. Switch on the appliance.
6. Release the Start/Stop button.
7. Immediately press the Start/Stop button 3 times; on the 3rd time, hold until the “Start/Stop” LED flashes.
8. Release the Start/Stop button.
9. If the “Start/Stop” LED does not light up, repeat the procedure. Acknowledgment indicator: The “Start/Stop” LED flashes slowly (1 flash per second).

Turn the selector switch to the 1 o’clock position. While the “Rinse” LED flashes, make a note of the fault code, then press the Start/Stop button. If the same fault is shown again, it means only this one fault is saved. If a further fault is shown, press Start/Stop again. Repeat this procedure until all faults are read.

If the “Rinse” LED is off, no faults are registered. The flashing rhythm of the “Rinse” LED indicates which faults are registered in the fault memory. (Example: Fault code F14: The “Rinse” LED flashes 1x slowly and 4x rapidly at intervals)

For Miele Dishwasher Inspira and Diamante – G 2120/G 214x/G 2150

Initial requirements:

1. Close the door.
2. Switch off the appliance.
3. Press and hold the Start/Stop button.
4. Switch on the appliance.
5. Release the Start/Stop button.
6. Immediately press the Start/Stop button 3 times; on the 3rd time, hold until the “Start/Stop” LED flashes.
7. Release the Start/Stop button.
8. If the “Start/Stop” LED does not light up, repeat the procedure. Acknowledgment indicator: The “Start/Stop” LED flashes slowly (1 flash per second).

Delay Start for G 2143) button 1x. If the “Rinse” LED displays a fault, check if further faults were registered by briefly pressing the Start/Stop button. To delete the fault memory, press and hold Start/Stop until the “Rinse” LED goes out.

The “Rinse & Hold” LED flashes 1x rapidly. If faults were registered, they are indicated by the “Rinse” LED. (Example: Fault code F14: The “Rinse” LED flashes 1x slowly and 4x rapidly at intervals).

For Miele Dishwasher Optima – G 2420/G 243x

Initial requirements:

1. Close the door.
2. Switch off the appliance.
3. Press and hold the Start/Stop button.
4. Switch on the appliance.
5. Release the Start/Stop button.
6. Immediately press the Start/Stop button 3 times; on the 3rd time, hold until the “Start/Stop” LED flashes.
7. Release the Start/Stop button.
8. If the “Start/Stop” LED does not light up, repeat the procedure. Acknowledgement indicator: The “Start/Stop” LED flashes slowly (1 flash per second).

Press the Delay Start button once. The “Delay Start” LED flashes once quickly intermittently. Press the Start/Stop button. Press it again to display faults that may have been saved. To delete the fault memory, press the Start/Stop button again and hold for 4 s.

The “Rinse” LED is off or flashes. The display shows F and a fault code number alternately . If the fault memory is empty, F and 0 are displayed alternately.

For Miele Dishwasher Excella – G 2630/G 2670

Initial requirements:

1. Close the door (open for G 2670).
2. Switch off the appliance. Accessing:
3. Press and hold the C (clear) button.
4. Switch on the appliance.
5. Release the C (clear) button when the display lights up.
6. Immediately press the C (clear) button 3 times; on the 3rd time, hold for at least 4 seconds. Acknowledgement indicator: Successful accessing of the programming mode is indicated by the LEDs, which are all off, and Service program, in the top line of the display. The display always indicates three parameters at a time. Use the cursor buttons to scroll through the display.

Select Fault memory. To return to the main menu, press OK.

Select Fault memory. Select Delete fault memory? with the cursor buttons; confirm with OK.

For Miele Dishwasher Excella – G 2732

Initial requirements:

1. Close the door.
2. Switch off the appliance.
3. Press and hold the Start button.
4. Switch on the appliance.
5. Release the Start button when the display lights up.
6. Immediately press the Start button 3 times; on the 3rd time, hold it pressed in until the display shows the first 3 positions (items). Acknowledgement indicator: The LEDs are all off and setting options are shown in the display.

Select Fault memory. Press OK.

The display shows the saved fault codes. If multiple fault codes have been registered, they are all shown. Alternatively, the message No fault is displayed.

For Miele Dishwasher LaPerla – G 283x/G 2872

Initial requirements:

1. Close the door (open for G 2872).
2. Switch off the appliance.
3. Press and hold the C (clear) button.
4. Switch on the appliance.
5. Release the C (clear) button when the display lights up.
6. Immediately press the C (clear) button 3 times; on the 3rd time, hold for at least 4 seconds. Acknowledgment indicator: The top line of the display shows Service program. The display always indicates two or three parameters at a time, depending on model.

Now that you know how to enter Service Mode on your Miele dishwasher, we will now explain what each code means and what to do about it.

Miele Dishwasher Error Codes

F00 – No fault registeredF01 – Water/heating NTC or leads short-circuitedF02 – Water/heating NTC or leads open-circuitedF11 – Drainage faultF12 – Water intake fault at start of stepF13 – Water intake fault at end of stepF14 – Water intake fault: Heater pressure switchF15 – Water intake fault: Hot waterF18 – Flow meter stationary state monitorF19 – Flow meter stiff and not turning freelyF24 – Heater relay contactF25 – Target temperature faultF26 – Boiling protectionF32 – Door lock does not closeF33 -) Door lock does not openF36 – Door lock switch defectiveF40 – Electronic faultF42 – Line frequency registration faultF47 – Faulty electronic interface (between BAE & SLT)F51 – Heater pressure switchF52 – Heater pressure switch has reset during heatingF53 – Speed sensor faultF63 – Slide shutter faultF67 – Circulation pump speed too lowF68 – Circulation pump operating after switch-offF69 – Circulation pump blockedF70 – Float switch faultF78 – Circulation pump faultF79 – Circulation pump interaction faultF84 – Slide shutter positioning faultF85 – Slide shutter signal change faultF86 – Lid contact – saltF87 – Sensor softener faultF88 – Turbidity sensor faultF91 – Load size registration inactive

Error Code F01 or F02: Water/Heating NTC or Leads Short-Circuited

Symptom: After this fault is registered, the heating will not be activated and rinse aid will not be dispensed. Cause: NTC temperature sensor R30 or its connection leads short-circuited or open-circuited. Remedy:

1. Check the temperature sensor and its leads for continuity. At 68°F (20°C), the temperature sensor resistance should be approximately 14.9k (± 750); at 77°F (25°C), approximately 12k (± 600) (guide figures only).
2. Check the plug connections.
3. Replace the temperature sensor, if necessary.

Error Code F11: Drainage Fault

Symptom: Water present in an appliance and is not being drained off. Background information: After each drain pump step, the circulation pump operates for 2 seconds and heater pressure switch B1/13 checks the water level. If it is too high (large quantity of residual water remaining in the cabinet), the drainage time is extended. If, after a further check, the water level is still too high, then the program is interrupted, the fault code is saved and the drain pump is activated.

Fault code F11 is also registered if heater relay 1K1 is not activated after the fault code F51 register check.

• Drain hose kinked
• Drain blocked.
• Ball in non-return valve in the sump has not opened (e.g., jammed).
• Foreign objects in heater pressure switch.
• Heater relay defective.
• Heater relay (coil or contacts) becomes defective during the drainage step (after fault code F51 register check).

Error Code F12: Water Intake Fault at Start of Step

Symptom: During the first 5 seconds of any water intake step, at least 15 pulses from flow meter B3/4 should be registered. If this given number of pulses is not detected, the display reads Water inlet fault and/or the “Intake/Drain” LED flashes (depending on model). The water inlet valve will be activated at 10-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.

• On-site shutoff valve (water supply) closed
• On-site water supply not in order (water pressure below 14.5 pounds per square inch)
• Water inlet valve defective
• Flow meter B3/4 is not providing any pulses

1. Remove the left side panel.
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.
6. Check the control lead from the electronic to flow meter B3/4.
7. Replace the water diverter, if necessary.

• Flow meter electrical connection open-circuited

1. Check the wires to the flow meter reed switch for continuity.
2. Check the plug connections.

Error Code F13: Water Intake Fault at End of Step

Symptom: The program is interrupted and the drain pump is operated. After approximately 2 to 4 minutes, the buzzer is activated for 2 minutes.

Background information: This fault is registered when the desired number of pulses, which varies depending on the program, has not been detected within a certain given time (maximum 4 minutes). If the selected program starts with a water softener flushing cycle, the fault code register check is carried out earlier. In the event of a fault, the selected program is interrupted after approximately 30 seconds and the fault is indicated.

• On-site water supply not in order
• Water inlet valve defective
• Flow meter B3/4 is providing too few pulses

Error Code F14: Water Intake Fault: Heater Pressure Switch

Symptom: The program is interrupted and the drain pump is operated. See Table 080-3 for model-specific fault indications.

Background information: With the circulation pump operating after a water intake step, the heater pressure switch is checked to ensure that sufficient water pressure exists in the wash water circuit. For this the heater relay must have been activated.

• During a heating step the heater pressure switch may have registered no or insufficient water pressure at the circulation pump.
• Heater pressure switch B1/13 defective or blocked by foreign objects.
• Circulation pump inoperative. Circulation pressure too low (no pressure at heater pressure switch). Pump may be blocked by foreign objects.
• Flow meter B3/4 defective (incorrect water quantity registered).
• Circulation pump winding overheated; winding protection has cut out.
• After a water intake step, heater pressure switch B1/13 has not opened switching steps 11–12 and 21–22. This causes the anti-stiction routine to be started.

Error Code F15: Water Intake Fault – Hot Water

Intake temperature of the hot-water connection is too cold (below 100°F).

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

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.

Error Code F19: Flow Meter B3/4 Stiff and Not Turning Freely

Flow meter defective

Error Code F24: Heater Relay Contact

• Heater relay contacts have fused together
• Moisture in heater relay
• Fault in the plug on the output side of the heater relay. Contamination or corrosion on the plug of the heater wiring harness can cause a bridge between contacts, which can reduce the transfer resistance below a value of 10 megaohms

Error Code F25: Target Temperature Fault

Background information: During the heating stage, the desired temperature has not been reached within the given time (minimum 75 minutes). In subsequent wash blocks, after this fault has been registered, the heater is not activated and no rinse aid is dispensed.

• Heater defective.
• Heater relay defective.
• Excess quantity of detergent or rinse aid dispensed. Excess foam has developed. Excess foam can cause a drop in water flow pressure, directly affecting the Heater pressure switch.

Error Code F26: Boiling Protection

• Temperature at NTC temperature sensor has exceeded 194°F (90°C).
• NTC temperature sensor providing inaccurate information
• Heater relay closed

Error Code F32: Door Lock Does Not Close

• The given time for retraction of the adjustable door lock latch from position 3 to 2, or 2 to 1 is not sufficient.
• Given time period for new positioning exceeded

Error Code F33: Door Lock Does Not Open

Same as F32

Error Code F36: Door Lock Switch Defective

• S4 and S80 closed at the same time (Replace the comfort door closing aid)

Error Code F40: Electronic Fault

The electronic has a fault that cannot be repaired by the service department (such as a hardware fault).

Error Code F42: Line Frequency Registration Fault

Main power supply not in order. A check is carried out to ensure that the line frequency is within certain valid ranges (50 ± 5 Hz or 60 ± 5 Hz). This fault is registered when it cannot clearly be established which valid range is applicable

Error Code F47: Faulty Interface Between Selection-Display Electronic (BAE) & Control-Power Electronic (SLT)

• Communication between BAE and SLT faulty

Error Code F51: Heater Pressure Switch

One second after program start, heater relay K1/1 is activated. This enables a check as to whether the contacts on heater pressure switch B1/13 have closed on switching steps 21/22 or 11/12. If the electronic receives no power, an F51 fault is stored.

• Heater relay defective; contact open.
• Heater relay solenoid defective
• Connection from heater relay to electronic is open-circuited
• Heater pressure switch open- or short-circuited.
• Foreign objects in heater pressure switch

Error Code F52: Heater Pressure Switch Has Reset During Heating

• Excess quantity of detergent or rinse aid dispensed. Excess foam has developed.
• Heater pressure switch defective.
• Pump pressure too low.
• An item has tipped over and a large quantity of water is retained, e.g., in a bowl, and is then not available for the wash water circuit. This reduces the pump pressure.

Error Code F53: Speed Sensor Fault

Background information: With the circulation pump activated the speed sensor does not provide any signals.

• Circulation pump blocked.
• Speed sensor defective

Error Code F63: Slide Shutter Fault

Background information: Even though the slide shutter motor has been activated, there is no signal change at the position switch. The slide shutter motor will be activated again whenever repositioning is required

• Position switch defective
• Connection wires open- or short-circuited
• Drive (synchronous motor) defective
• Slide shutter gearing defective.

Error Code F67: Circulation Pump Speed Too Low

Background information: The check is carried out 10 seconds after the circulation pump has started.

• Circulation pump stiff and not turning freely
• Speed sensor defective.
• Circulation pump capacitor defective

Error Code F68: Circulation Pump Operating After Shutoff

Background information: The speed sensor registers that the circulation pump is still operating even after it has been switched off. The frequency converter of the pump registers a speed signal from the electronic, so a target speed is set.

• Speed sensor defective
• Electronic defective.

Error Code F69: Circulation Pump Blocked

With the circulation pump operating, the heater pressure switch contacts are checked. For this, the heater relay must have been activated and both electronic’s inputs must be potential-free.

• Heater pressure switch defective
• Heater relay defective
• Circulation pressure too low because circulation pump is blocked by foreign objects.

Error Code F70: Float Switch Fault

• Water in the drip pan. Changeover contact of overflow float switch B8/3 closed from 1 to 4
• Float switch defective
• Drip pan warped after transport

Error Code F78: Circulation Pump Fault

• Interrupted connection between the electronic and the circulation pump
• Faulty circulation pump (low or excess voltage, blocked, etc.).
• Frequency converter electronic defective

Error Code F79: Circulation Pump Interaction Fault

• Faulty interaction between the frequency converter electronic of the circulation pump and the electronic (SLT).
• Frequency converter electronic defective
• Control electronic (SLT) defective

Error Code F84: Slide Shutter Positioning Fault

• Position switch defective – Replace the circulation pump.
• Drive (synchronous motor) defective – Replace the circulation pump
• Slide shutter mechanism defective – Replace the circulation pump
• Turbidity sensor connection wires open-circuited

Error Code F85: Slide Shutter Signal Change Fault

Symptom: Even though the slide shutter has not been activated, a signal change has been detected at the position switch. If the fault is registered before the circulation pump has been activated for the first time (or before program start), the program is interrupted and the drain pump is operated.If the fault is registered later, the fault message will be indicated in the display at the end of the program.

• Position switch B3/12 defective; intermittent contact
• Electronic defective

Error Code F86: Salt Container Lid Contact Fault

Symptom: If the fault is detected during a program, the program will be interrupted and the drain pump will start. The display reads Close salt container lid. If the fault is detected before the start of a program, the message Close salt container lid will be displayed.

Background information: This fault is detected if the reed switch is constantly open during the monitoring period

• Lid not closed.
• Magnet missing.
• Reed switch magnet defective

Error 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.

• Voltage supply (approximately 9VAC) to the sensor softener 10N1 electronic or the data connection open-circuited
• Sensor softener electronic conductivity measurement defective

Error Code F88: Turbidity Sensor Fault

• False or no values from turbidity sensor
• Foreign objects in the measurement path
• Turbidity sensor connection wires open-circuited.

Error Code F91: Load Size Registration Inactive

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, the water intake block will operate by taking in the default water quantity. In the subsequent additional fill, the quantity of which will normally depend on the size of the load, the water intake block is replaced by a water intake block with fixed water quantity.

• Speed sensor defective
• Water has collected in tipped-over dishes (e.g., large bowls). Subsequent water fill is not successful.