Miele G 7881 Service Manual
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Service Level S 26 Program Selector Switch SettingDisplay Function 5 o'clock 2)50 Without use of dispenser relay control EZQ 081. 51 With use of dispenser relay control EZQ 081. Table 49:Service LevelS 26 1)If the programming mode is locked, selection of service level 2 is made more difficult. During activation, both buttons must be pressed for 2 seconds. 2)From software version P 07. 2.9.7 S 27, Program Lock Options (From P 03) For service mode 2 access, see Service Mode 2 Summary, 070 4.3. x Service Level S 271) Program Selector Switch SettingDisplay Function 1 o'clock P 1Constant display: Program at program selector switch setting 1 can be started Flashing display: Program at program selector switch setting 1 is locked 2 o'clock P 2Constant display: Program at program selector switch setting 2 can be started Flashing display: Program at program selector switch setting 2 is locked 3 o'clock to ... P 3 to ... etc. 11 o'clock P 2Constant display: Program at program selector switch setting 11 can be started Flashing display: Program at program selector switch setting 11 is locked Table 50:Service LevelS 27 1)Only programs that have been allocated to the electronic unit can be locked. If a selected program setting is vacant,—is indicated in the middle segment. Descriptive Technical Documentation 070-46 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
2.10 Fault Indication Without Flashing or Lit Fault LEDs 2.10.1 General Information All faults registered by the electronic that do not involve water intake, drainage or the dispenser systems aresaved in a fault code memory and not indicated via any warning LEDs. The last 3 detected faults are saved provided they are different. The most recently registered fault code is only stored if a different fault code (or no fault code) is already saved. This prevents the possibility of the same fault being recorded 3 times. The fault memory can be deleted via service mode 2; see 070 Table 44. 2.11 Fault Indication With Flashing or Lit Fault LEDs 2.11.1 General Information If a fault is registered for which one of the 5 fault LEDs is provided, then the appropriate LED flashes once per second and at the same time a fault code to aid further diagnosis is displayed in the digital display.This fault code is not saved in the fault memory.The program sequence indicator showing the stage the program had reached when the fault was detected remains active. When the program selector switch is turned to the 12 o'clock setting, the fault display is deleted and a new program can then be selected and started normally. If a fault is registered before program start, such as if an activated dispenser check registers an empty container, then the appropriate fault LED (e.g.,DOS) flashes after program selection and the program cannot be started. 2.11.2 Intake/Drain Fault LED With these faults the top fault LEDp/qflashes and the program is interrupted. At the same time one of the following fault codes is indicated in the display: –F 0E After a delay of 5 seconds a flow meter in the water intake does not provide a minimum of 5 pulses within the next 2 seconds. If no pulses are registered during the first water intake in a program with legally fixed cleaning parameters, then the program will only advance to the next step if the heating level switch switches to register sufficient water level. If it does not switch, the fault codeF 0Eis displayed. In the test program the delay time has been extended from 5 seconds to 23 seconds as in this case it may be necessary for the machine water paths to be filled. –F 1E The water intake is switched off within 5 minutes even though the number of pulses for the set water intake quantity has not been registered. Descriptive Technical Documentation DTD no. 62-7881 070-47 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
In programs (first water intake only) with legally fixed cleaning parameters a minimum water quantity is not monitored. To advance from the water intake step the heating level switch must have switched to register sufficient water level. If it does not switch, fault codeF 1Eis displayed if pulses from the flow meter are registered or fault codeF 0Eis displayed when no pulses are detected. –F 2E During water intake a flow meter provides sufficient pulses but the quantity of water required is not taken in during the given time of 5 minutes. –F 3E 2 seconds after the water intake step the heating level switch is monitored for 2 seconds. If it has not switched, the step is not advanced and fault codeF 3Eis displayed. After a voltage interruption in the appropriate step, the heating level switch is not checked again. As it is possible to set a desired water quantity of 1.5 gallons or 1.3 gallons (5.5 liters or 5 liters) via programmable function E 01 in wash blocks VR1, VR2, SP2 and SP3, then with a desired water quantity less than or equal to 1.6 gallons (6 liters) this fault monitoring is not active. 2.11.3 Salt Fault Indicator LED If insufficient salt is registered in the salt container, then thekLED lights up. The program is not interrupted. –F 23 If reactivation is carried out for a second time after a lack of salt has been registered, thekLED flashes and fault codeF 23is displayed. This fault is also recorded via the printer interface. Descriptive Technical Documentation 070-48 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
3 Fault Repair 3.1 Fault Code Summary Cause See Table 51. x Fault code Symptom Cause Remedy F00No registered fault Machine functioning correctly None F0EMinimum number of pulses (5) not registered within the first 7 seconds. The program is interrupted.No water intake Check on-site shutoff valves. Check filter in waterproof system. Check hoses for kinks and blockages. Check waterproof system. No pulse provided by flow meterSee Minimum/Maximum Number of Flow Meter Pulses Not Achieved, 041 3.2 Faulty cold-water connection to steam condenser in appliances that should only be operated with deionized water. If a printer is connected, the program position where the error occurred (e.g., Pos. 123, steam condenser water intake) will be noted.The steam condensor always requires at least a cold-water connection. If there is a deionized-water connection available, it can also be used, though the water temperature may not exceed 95°F (35°C). F1EMaximum number of pulses during water intake not reached within 5 minutes. Water intake is switched off.Water is taken in but pulses are irregular and the overflow level switches the water supply off before the maximum number of pulses has been registered.See Minimum/Maximum Number of Flow Meter Pulses Not Achieved, 041 3.2 Check overflow level switch for correct operation. In programs with legally fixed cleaning parameters, the heating level switch has not switched during the water intake.Check on-site shutoff valves. Check hoses for kinks and blockages. Check circulation pump for correct operation. Check circulation pump for blockages. Check heating level switch for correct switching position. F2EWater intake is not completed within the given time of 5 minutes. The program is interrupted.Desired water intake quantity not reachedCheck water pressure of on-site cold and hot water supplies. (Desired pressure is 14.5 to 145 pounds per square inch or 1 to 10 bar.) Check on-site shutoff valves. Check hoses for kinks and blockages. Exchange restrictor insert in waterproof system for a large version. Descriptive Technical Documentation DTD no. 62-7881 070-49 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
Fault code Symptom Cause Remedy F3EHeating level switch has not switched after water intakeHeating level switch defective Check circulation pump for correct operation; see service mode 2, 070 2.9.3 S 23, Checking Outputs 1 to 11. Check connection plugs and leads. Check heating level switch for correct switching point (2 s after circulation pump starts at rated speed). Check circulation pump connection hoses for blockages. See Heating Level Switch Does Not Switch On, 050 3.1 F4EFlow meter provides pulses during a non- water intake stepAppropriate water intake valve is openCheck water inlet valve for correct operation. Replace waterproof system assembly, if necessary. Check if voltage is applied to water inlet valve where machine is switched off. If voltage is applied to water inlet valve when machine is switched off, replace electronic. FAThe heating level switch has switched after a drainage stepResidual water still in cabinet Check drain pump. Check drain hoses for kinks or blockages. FSATheSaltLED has been ignored for too longEven through theSaltLED has been lit for a period of time, reactivation salt has not been addedFill salt container with reactivation salt. See fault codeF23. FdoDuring dispensing no medium flow has been detected.Dispensing container empty. 1)Fill the dispensing container. Dispenser pump not primed Prime the dispenser pump; see 070 2.8.2E 02, Dispenser Settings. G 7882 CD and G 7883 CD only:Although there is enough liquid media in the container of dispensing system DOS1, this fault code appears in the display, such as after ventilating dispensing system DOS1 for liquid cleaning agents. A new selection for ventilating DOS1 is not possible. 2) After ventilating the dispensing system, wait a few minutes until the float of the flow meter check has fallen again. If no dispensing check for liquid cleaning agents is required, change program function E 02 from 91 to 90 (dispensing check deactivation). Pull off the plug from the reed contact and secure to the wiring harness using electrical tape. F01Wash water temperature T1 in wash block HR1 (main wash) not reached within 60 minutesTemperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heating level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present. The heating level switch controls the heater relay voltage.Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. Descriptive Technical Documentation 070-50 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
Fault code Symptom Cause Remedy F02Wash water temperature T2 in wash block NS2 not reached within 60 minutesTemperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heating level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present. The heating level switch controls the heating relay voltage.Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. F03Wash water temperature T3 in wash block CH- DESIN not reached within 60 minutesTemperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heater level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present. The heating level switch controls the heating relay voltage.Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. F04Water NTC sensor or its leads open-circuitedCheck leads and plug connections. Replace leads, if necessary. F05Water NTC sensor or its leads short-circuitedCheck leads and plug connections. Replace leads, if necessary. F06(G 7882 CD and G 7883 CD only)Air NTC sensor or its leads open-circuitedCheck leads and plug connections. Replace leads, if necessary. F07(G 7882 CD and G 7883 CD only)Air NTC sensor or its leads short-circuitedCheck leads and plug connections. Replace leads, if necessary. F08Speed sensor B3/9 does not provide any pulses through they are required (e.g., with gentle-start mechanism)Speed sensor defective See Speed Sensor B3/9 Check, 050 4.1. Check leads and plug connections. Check correct seating of speed sensors on circulation pump. Check voltage supply (5VDC), 070 Fig. 5, Pos. 7. Replace speed sensor, if necessary. Circulation pump blocked See Circulation Pump Does Not Start, 050 3.3 F09Line frequency not registered. Applies particularly to buildings with their own on-site power supply where there is insufficient filtering of high-frequency line power interferenceChangeover from line power operation to operation with emergency power supply or on-site power supplyNone. Unstable line frequency Check the sine-wave oscillation of the line frequency. Carry out appropriate corrective measures to stabilize the line frequency. F10Failure of one or more optical selector switch LEDsReplace electronic. Descriptive Technical Documentation DTD no. 62-7881 070-51 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
Fault code Symptom Cause Remedy F11The additional module cannot be addressed via the I 2C busBus leads defective Check the bus leads and plug connections. Replace electronic, if necessary. The fault code is displayed even after replacing an additional module.Replace the control electronic. Also, check the connection cable for abrasions and short circuits, and replace if necessary. 3)4) F12(G 7882 CD and G 7883 CD only)Drying temperature has not been reached (warning and fault indication).Fan in drying unit (TA) defective.See Drying Unit Fan and Heater Bank Inoperative, 096 3.1. See Drying Temperature Not Reached, 096 3.5. See Air From Drying Unit Is Not Warm, 096 3.4. See Drying Unit Fan Operates Too Slowly, 096 3.3. See Drying Unit Fan Does Not Start, 096 3.2. F13RS-232 serial interface cannot be addressed via the I 2C busElectronic defective Replace electronic. F14An impermissible power failure when a cleaning program was in operationCircuit breaker has tripped Check circuit breaker and repair any possible short circuits. A possible changeover from line power operation to operation with emergency power supply or own supply has taken too longNone. F17External electronic module TÜE has registered that the desired temperature has been exceeded.None. F18Wash water temperature T4 in wash block HR2 not reached within 1 hourTemperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heating level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present (heating level switch controls the heating relay voltage).Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. F19Wash water temperature T5 in wash block NS1 not reached within 60 minutesTemperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heating level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present (heating level switch controls the heating relay voltage).Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. Descriptive Technical Documentation 070-52 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
Fault code Symptom Cause Remedy F20Water check NTC sensor or its leads short-circuited (monitoring processor)Check leads and plug connections. Replace leads, if necessary. F21Water check NTC sensor or its leads open-circuited (monitoring processor)Check leads and plug connections. Replace leads, if necessary. F22Temperature variation between the two NTC sensors too largeCheck leads and plug connections. Replace leads, if necessary One of the NTC sensors has incorrect resistanceCompare resistance values of both NTC sensors. Replace an NTC sensor, if necessary. Objects in the cabinet could prevent the flow of wash water to a sensorRearrange wash load, if necessary. F23Softener reactivation program segment has been skippedNo reactivation salt in salt container. Salt LED has been ignored.Refill the salt container with reactivation salt. Reed switch B8/2 (reactivation salt float switch) had not been activated even though sufficient salt is presentCheck reed switch plate for correct seating. Check float switch in salt container for correct operation. F24Triac failure. Speed sensor provides pulses even though circulation pump is not activated.Control module defective Replace control module. F25Heating level switch has switched before a program has startedCheck heating level switch switching pointsReplace heating level switch, if necessary. F26Overflow float switch B8/3 has switchedWater present in drip pan Check machine for leaks (hoses, seal, etc.). Check WPS valves. Float switch B8/3 has been pressed upwards by a warped drip pan or a foreign object.Re-align the appliance. Straighten the drip pan. Upon inspection, no water was found in the drip pan. A defective seal (mat. no. 4745740) between the cabinet and the steam condenser can cause condensate to run down the back wall, underneath the cabinet and to the sump, up to the contacts of microswitch B8/3. This condensate will eventually cause a short circuit in the connection leads and activate fault code F 26.Traces of condensate are to be identified only after complete inspection of the appliance.Replace the seal. Descriptive Technical Documentation DTD no. 62-7881 070-53 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.
Fault code Symptom Cause Remedy F27Desired temperature not reached in wash block VR, SP1, SP2, SP3, or SP4Temperature limiter F2 has cut outReset temperature limiter F2. See Resetting Temperature Limiter F2 (Thermostat), 030 4.2. If necessary, replace the temperature limiter. See Replacing Temperature Limiter F2 (Thermostat), 030 4.3. Heater elements do not heat upCheck heater elements. If necessary, replace a faulty heater element; see Heater Element Replacement, 030 4.5.. Heating level switch does not switchSee Heating Level Switch Does Not Switch On, 050 3.1 Voltage (6VDC) from the electronic not present (heating level switch controls the heating relay voltage).Check plug connections. Check electronic module output voltage; see 070 Fig. 5, Pos. 9. F31Dispensing relay control (EZQ 081) defective.Check the power supply; see 080 Fig. 2. Remove plug 1 from the EZQ 081 module and add a zero jumper (see 080 Fig. 2). Deactivate the dispensing relay control; see 070 2.9.6S 26, Special Functions. Now run the dispensing pump to see if the EZQ 081 module works. Dispensing relay control (EZQ 081) not accessible via the Novotronic.Check the I 2C bus plug (080 Fig. 2) for a contact error or broken lead. F32Defective or no activation of the dispensing relay in the Novotronic.Remove plug 1 from the EZQ 081 module and add a zero jumper (see 080 Fig. 2). Deactivate the dispensing relay control; see 070 2.9.6S 26, Special Functions. If the dispensing pump still does not run and other faults can be eliminated, replace the electronic module. F33EZQ 081 has registered an exceedance in the maximum allowable activation time (7 minutes) of a dispensing relay.Check for a stuck dispensing relay in the Novotronic. Replace the electronic module, if necessary. F–Undefined fault in electronic Turn the program selector switch to “Stop”(12 o'clock position). Shut the appliance off; turn it on again after a few seconds. If fault code“F- -”is still displayed after making a program selection, then replace the electronic. S F1 (warning code)Coarse filter warning. See Coarse Filter Replacement, 095 4.1. Descriptive Technical Documentation 070-54 DTD no. 62-7881 This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am
Fault code Symptom Cause Remedy S F2 (warning code)Fine filter warning. See Microfine Filter Replacement, 095 4.4. Water drain faultWater drainage fault approximately 20 s after start of water intake stepThe water drainage check, 20 s after the start of the water intake step, is carried out by checking the heater pressure monitor (HDW). With a high water supply pressure and a high opening tolerance of the inlet valves, too much water may flow into the machine. The heater pressure monitor switches too early.From machine no. 18131352 a different heater pressure monitor (2400/700) has been installed. Replace the existing heater pressure monitor (1500/700) with the new heater pressure monitor. Table 51:Fault Codes 1)This is actually not a fault, but rather an indication of an empty dispensing system. Program selection is blocked. Program start with a positive fill level indication is not allowed. A float switch for flow control (B8) was not installed in the G 7881 to G 7883 series machines. 2)The "Container DOS1 Fill Level" and "Check Flow Meter" sensors are switched in parallel electrically. Depending on the program sequence, is the input signal for the“Fill DOS Container”message (before program start) or as flow meter check (during a drain program) from the electronic module interpreted. When ventilating the dispensing system the sensor of the dispenser check gives a signal to the electronic as soon as liquid media flows through the flow meter check. Depending on the viscosity of the medium, there will be a period of time until the float in the sensor of the flow meter check has fallen again and the signal to the electronic has again shut off. During this interval the above-mentioned message can register. In normal operation, no fault should occur, except when using viscous media. 3)Abrasions between neighboring leads/contacts on the connection cable to the additional components can cause short circuits. A short circuit can lead to disturbances in the communication port in the control electronic's microcontroller. 4)If the connection cable to the additional modules must be removed during service work, after this work is completed ensure that the electronic module is potential-free and that the appropriate connector to the EGPL 0xx, additional module or printer interface EZI is removed with an insulated tool. Remedy ARefer to the respective fault. Descriptive Technical Documentation DTD no. 62-7881 070-55 18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved.