Miele Dishwasher Fault Codes |
F01 Water/heating NTC or leads short-circuited After this fault is registered, the heating will not be activated and rinse aid will not be dispensed. At the end of the program, the display shows Technical fault F01. The buzzer is activated for 2 minutes. Cause: NTC temperature sensor R30 or its connection leads short-circuited. |
F02 Water/heating NTC or leads open-circuited After this fault is registered, the heating will not be activated and rinse aid will not be dispensed. At the end of the program, the display shows Technical fault F02. The buzzer is activated for 2 minutes. Cause: NTC temperature sensor R30 or its connection leads open-circuited. |
F11 Drainage fault Water present in appliance and is not being drained off. The display shows Drain fault F11. The buzzer is activated for 2 minutes. Background information: Remedy: Cause: Ball in non-return valve in sump has not opened (e.g., jammed). Cause: Drain pump defective. Cause: Foreign objects in heater pressure switch. Cause: Heater relay defective. Heater relay (coil or contacts) becomes defective during the drainage step (after fault code F51 register check). |
F12 Water intake fault at start of step 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 shows the message Water intake fault and the Status LED flashes. 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. Cause: On-site shutoff valve (water supply) closed. Cause: On-site water supply not in order. Cause: Flow meter B3/4 is not providing any pulses. Cause: Water inlet valve defective. Cause: Electrical connection open-circuited. |
F13 Water intake fault: Heater pressure switch The program is interrupted and the drain pump is operated. The display shows the message Water intake fault F13. After approximately 2 to 4 minutes, the buzzer is activated for 2 minutes. This fault is registered when the desired number of pulses, which varies depending on 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. Cause: On-site water supply not in order. Cause: Water inlet valve defective. Cause: Flow meter B3/4 is providing too few pulses. Cause: Water flow pressure at on-site water supply is less than 14.5 pounds per square inch (1 bar). Cause: Filter in WPS clogged. |
F14 Water intake fault: Heater pressure switch The program is interrupted and the drain pump is operated. The display shows the message Technical fault code F14 – Call Service Dept. The buzzer is activated for 2 minutes. 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. Cause: Heater pressure switch B1/13 defective. Cause: Circulation pump inoperative. Circulation pressure too low (no pressure at heater pressure switch). Pump may be blocked by foreign objects. Cause: Foreign objects in heater pressure switch. Cause: Flow meter B3/4 defective (incorrect water quantity registered). Cause: Circulation pump defective. Cause: Circulation pump winding overheated; winding protection has cut out. Cause: After a water intake step, heater pressure switch B1/13 has not opened switching steps 11–12 and 21–22. This starts the anti-stiction routine. Cause: Motor capacitor defective. Cause: Contacts on heater pressure switch B1/13 short-circuited. Contamination on the plug of the heater wiring harness and a conductive connection between the plugs and the main harness causes a short circuit to the contacts. |
F15 Water intake fault: Hot water |
F18 Flow meter stationary state monitor B3/4 The program is interrupted and the drain pump is operated. The display shows the message Technical fault code F18 – Call Service Dept. The buzzer is activated for 2 minutes. 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 flow meter B3/4 are detected. Unexpected pulses from flow meter B3/4 are also detected when the water inlet valve is not activated. Cause: Water inlet valve defective. Cause: Interference pulses. |
F19 Flow meter B3/4 stiff and not turning freely The program is interrupted and the drain pump is operated. The display shows Technical fault F19. Call the Service Department. The buzzer is activated for 2 minutes. Background information: Satisfactory test routines to monitor free rotation of the flow meter impeller could not be established. Wash block water intake start: Test routine: Note: The volume of water cannot cause the machine to overflow, even if the flow meter is inaccurate. Circulation pump M6 is now activated for 2 minutes in order to wet the dishes in the dishwasher and to fill any spaces with water. Drain pump M8 is then activated for one minute. This creates a measurement basis for the actual test. During the test, water inlet valve Y2 is activated until a defined number of pulses corresponding to a water volume of approximately 0.37 gallons (1.4 liters) is reached. Circulation pump M6 is then activated once more. b. The program continues to run without interruption. The maximum water intake time is extended to 4 minutes. This time value is saved by the electronic for future water intake. For future water intakes, if the time needed for 0.26 gallons to flow into the machine differs by 15 percent, a new test routine flow will be started. c. If heater pressure switch B1/13 is activated, the program is interrupted immediately, the drain pump is operated, and fault F19 is registered. Cause: Flow meter defective. |
F24 Heater relay contact The program is interrupted and the drain pump is operated. The display shows Technical fault F24. Call the Service Department. The buzzer is activated for 2 minutes. Background information: Cause: Heater relay contacts have fused together. Cause: Moisture in heater relay. Cause: Fault in the plug on the exit side of the heater relay. Contamination on the plug of the heater wiring harness causes resistance values between the contact blades to fall below 10 megaohms (10MΩ). |
F25 Desired temperature fault At the end of the wash program, the display shows the message Technical fault code F25 – Call Service Dept. The Status LED flashes. The buzzer is activated for 2 minutes. 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 registered, the heating is not activated and no rinse aid is dispensed. Cause: Heater defective. Cause: Heater relay defective. Cause: Excess quantity of detergent or rinse aid dispensed. Excess foam has developed. |
F26 Boiling protection The program is interrupted and the drain pump is operated. The display shows Technical fault F26. Call the Service Department. The buzzer is activated for 2 minutes. Cause: Temperature at NTC temperature sensor has exceeded 194°F (90°C). Cause: NTC temperature sensor providing inaccurate information. Cause: Heater relay closed. |
F40 Electronic fault The program is interrupted and the drain pump is operated. The display shows Technical fault F40. Call the Service Department. The buzzer is activated for 2 minutes. Cause: The electronic has a fault that cannot be repaired by the service department (such as a hardware fault). |
F42 Line frequency registration fault The program is interrupted and the drain pump is operated. The display shows Technical fault F42. Call the Service Department. The buzzer is activated for 2 minutes. 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. Cause: Main power supply not in order. |
F47 Mains frequency registration fault |
F51 Heater pressure switch The program is interrupted and the drain pump is operated. The display shows Technical fault F51. Call Service Department. The buzzer is activated for 2 minutes. Background information: Cause: Heater relay defective; contact open. Cause: Heater relay solenoid defective. Cause: Connection from heater relay to electronic module open-circuited. Cause:Heater pressure switch open- or short-circuited. Cause: Connection from heater pressure switch to electronic open-circuited. Cause: Foreign objects in heater pressure switch. |
F52 Heater pressure switch has reset during heating The program continues from the wash block in which the fault is registered without the heating being activated. The fault will only be indicated when the fault code memory is checked in the service mode. Cause: Excess quantity of detergent or rinse aid dispensed. Excess foam has developed. Note: A check should also be made to ensure that the type of detergent used matches the setting. When, for example, combination products (2-in-1 or 3-in-1 tablets) are used but the corresponding parameter has been set to Normal, rinse aid will be dispensed twice. Cause:Heater pressure switch defective. Cause: Pump pressure too low. Cause: 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. |
F53 Speed sensor fault |
F63 Slide shutter fault |
F67 Circulation pump speed to slow |
F68 Circulation pump operation after switch off |
F69 Circulation pump blocked The program is interrupted and the drain pump is operated. The fault will be indicated in the display or via LEDs. The buzzer is activated for 2 minutes. 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. Cause: Heater pressure switch defective. Cause: Circulation pressure too low; circulation pump is blocked by foreign objects. |
F70 Float switch fault After the WaterProof System has activated, the program is interrupted and the drain pump is operated. The fault will be indicated in the display or via LEDs. The buzzer is activated for as long as the fault is detected. Note: The drain pump continues to operate even after the appliance has been shut off. The drain pump can only be deactivated by disconnecting the power supply connection. Cause: Water in the drip pan. Changeover contact of overflow float switch B8/3 closed from 1 to 4 (refer to the wiring diagram). Note: Upon opening the appliance and removing all water, there should be no smudges, smears or traces of deposits. Take pictures of any deposits, if possible, and note their type (rust, calcium, detergent, or salt?). 2. Check all hoses, connections and threaded unions for leaks. Cause: Float switch defective. Cause: Drip pan warped after transport. |
F84 Slide shutter positioning fault |
F85 Slide shutter signal change fault |
F86 Salt container lid contact fault |
F87 Sensor softener fault |
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. If this fault is registered, the program continues with default settings. Cause: False or no values from turbidity sensor. Cause: Foreign objects in the measurement path. Cause: Turbidity sensor connection wires open-circuited. |
F91 Load size registration inactive |
Plaats een reactie