Electrolux FLE120 Service Manual Download Page 18

Page: 18 / 91

Edition

Service
Manual

12. Function Sequences

17 9108

Type

Page

K54

S32

K54

X20:6

X3:7

218

318

319

X3:9

219

X8:1

X8:2

X20:4

S30

X8:5

X8:6

203

204

X24:7

X24:9

1685

(1) F1 Fuse

(2) S2 Emergency stop

(3) S1 ON/OFF switch

(4) K54 Relay, start

(5) F2 Overheat protection

(6) S3 Switch, door

(7) S30 Switch, programmer

(8) S4 Switch, door lock

A B C : Power supply to
other function sequences

(9) S32 Switch, restart

(10) K54 Relay, start

(11) K54 Relay coil, start

D : Power supply to other function
sequences

(12) S1 ON/OFF switch

(13) S2 Emergency stop

Summary of Contents for FLE120

Page 1: ...Service Manual FLE120 FLE220 471 1553 11 ...

Page 2: ...locking device Motor drive unit Speed guard Motor brake Motor protector Inlet valve water Inlet valve steam Inlet valve air Inlet vavle gas Drain valve Detergent compartment Heating Coin meter Drums with bearing Frame Automatic bearing lubrication system Pressure switch Gas system Heat pump Time relay Options 1 2 3 4 5 11 12 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 4...

Page 3: ...rum rotates at distribution speed thus distributing the washing before the spin This also reduces vibration caused by imbalande The distribution speed and the drain provide effective water removal The high speed spin gives a G factor of approximately 300 providing very efficient water removal during the spin The washing programs are programmed by means of programmable cards The machines are suppli...

Page 4: ... personnel The machine door safety locking device should be in working order and must not be by passed under any circumstances All leakage in the system such as a worn door seal must be rectified immediately The personnel concerned must study the relevant manuals before undertaking repairs or service The exterior of the machine must not be sprayed with water 1 Machine description 1 2 ...

Page 5: ... 302 kg 554 kg gross crate packed 318 kg 583 kg gross box packed 385 kg 644 kg Transport volume crate packed 1 32 m3 1 45 m3 box packed 1 95 m3 2 10 m3 Max floor load during extraction 3 3 1 1 kN 6 0 2 0 kN Frequency dynamic load 16 Hz 14 Hz Motors 3AC 50 60 Hz power rating input power wash speed 0 59 0 60 kW 0 95 1 10 kW distribution speed 0 68 0 80 kW 1 10 1 20 kW extraction speed 2 30 2 90 kW 4...

Page 6: ... 4 x 6 Electric heating 220 litres 220 V 3AC 50 Hz 15 16 0 50 4 x 10 380 V 3NAC 50 Hz 15 16 0 35 5 x 6 415 440 V 3NAC 50 Hz 15 16 0 25 5 x 4 208 240 V 3AC 60 Hz 15 16 1 50 4 x 10 Steam heating 120 litres 220 V 3AC 50 Hz 2 3 10 4 x 1 5 380 440 V 3NAC 50 Hz 2 3 10 5 x 1 5 208 240 V 3AC 60 Hz 2 9 10 4 x 1 5 Steam heating 220 FC 1 phase 16 3 x 2 5 Steam heating 220 litres 220 V 3AC 50 Hz 4 2 16 4 x 1 ...

Page 7: ...m 1000 mm depth 900 mm 1080 mm height 1330 mm 1460 mm Recommended service space side 300 mm 300 mm rear 500 mm 500 mm Weight net 302 kg 554 kg gross crate packed 318 kg 583 kg gross box packed 385 kg 644 kg Transport volume crate packed 1 32 m3 1 45 m3 box packed 1 95 m3 2 10 m3 Max floor load during extraction 3 3 1 1 kN 6 0 2 0 kN Frequency dynamic load 16 Hz 14 Hz Water valves connection DN 20 ...

Page 8: ...s water vapour from entering the detergent compartment The robust square door is locked with a handle which is interlocked by a safety locking device when the machine is running The operating panel contains several buttons for manual control of certain functions restart button indication light thermostat and a flat card unit through which programmed cards can control the washing programmes Reverse...

Page 9: ... on the thermostat G Detergent dispensing H Spin I Detergent dispensing compartment 3 K Drain L Cold hard water only certain machines M Programme stop buzzer yellow signal light on N High water level O Inflow valve for cold water P Cooling Q Inflow valve for hot water When connecting external metering equipment for liquid detergent use tracks A C E G and I for pulse sending The programme card test...

Page 10: ... Rinse 1 O Cold water 26 to 31 x x 26 N High water level 26 to 34 x x 27 K Drain 32 to 34 x x 28 H Spin 33 to 34 x x 29 x x 30 x x 31 x x 32 x x x 33 x x x 34 Rinse 2 O Cold water 35 to 40 x x 35 N High water level 35 to 43 x x 36 K Drain 41 to 43 x x 37 H Spin 42 till 43 x x 38 x x 39 x x 40 x x 41 x x x 42 x x x 43 Rinse 3 O Cold water 44 to 49 x x 44 N High water level 44 to 52 x x 45 K Drain 5...

Page 11: ...measure to ensure the washing is done correctly even if the card is incorrectly adjusted see 4 Card Programing The prewash ends with emptying Drain for 0 5 minutes peg 7 in cam K removed Main wash The main wash takes 9 minutes and starts with cold water inflow hot water detergent dispensing from compartment 2 and heating till the value selected on thermostat dial D is reached peg no 8 in cams C E ...

Page 12: ...to empty before the spin starts Rinse 4 Rinse 4 lasts for 9 minutes and starts with inflow of cold water to high level and detergent dispensing fabric conditioner from compartment 3 peg 53 in tracks E N and O removed The advance of the programmed card stops at peg 53 until the water level has been reached As the card must be punched for the whole time advance is required tracks N and O are punched...

Page 13: ... For identification purposes the tracks are marked with letters To locate the timing of the function changes every 5th peg is numbered on one side with two different number sequences one marks the peg numbers and one marks the peg numbers in relation to the front panel of the programme unit The machine is delivered with a programmed card and a punch device for punching the cards The card is progra...

Page 14: ...c card device stops This means a row cannot be left unpunched during a programme the programme must be a complete sequence with information about the washing process Programming of Stop can be made serveral time during the same washing programme When the programme reaches the stop the buzzer sounds and the machine stops It is then possible to carry out required action such as detergent dispensing ...

Page 15: ...ith water during washing or water from the drain valve Every three months Switch off main switch Remove rear and front protective plates and top panel Do not forget screws for detergent compartment Check in the detergent compartment that there is no leak between the compartment and the top panel Check that all inner pipe connections are not leaking Check door does not leak Check V belts tighten or...

Page 16: ...r X9 Inlet S2 Emergency stop K31 Relay drain K3 Relay distribution K2 Relay wash K52 Relay start K53 Relay out of balance K62 Time relay D1 X8 Door K54 Realy start General From machine No 91 5501 120 l machine 91 5875 220 l machine To facilitate in faults tracing in the electrical system the circuit diagram is broken down into a number of sequences as follows Power supply and start 2 Restart 4 Doo...

Page 17: ...t A is energised and the machine now starts if a programmed card is inserted in the programmer The machine is normally switched ON and OFF using switch S1 3 12 This means that relay K54 11 is kept activated by K54 10 6 10 is closed even when the machine is off When the emergency stop button S2 2 13 is depressed relay K54 is released To restart the machine you must first reset the emergency stop bu...

Page 18: ... 52 S30 1 4 S4 X8 5 X8 6 55 203 204 62 53 B C 2 X24 7 X24 9 1685 3 1 F1 Fuse 2 S2 Emergency stop 3 S1 ON OFF switch 4 K54 Relay start 5 F2 Overheat protection 6 S3 Switch door 7 S30 Switch programmer 8 S4 Switch door lock A B C Power supply to other function sequences 9 S32 Switch restart 10 K54 Relay start 11 K54 Relay coil start D Power supply to other function sequences 12 S1 ON OFF switch 13 S...

Page 19: ...3 to 1 3 This supplies power to buzzer B40 8 and lamp H2 7 and at the same time disconnects the washing functions and programmer motor although the drain remains closed Relay coil K52 6 is energised by pressing switch S32 4 and is locked via K52 13 14 5 K52 43 44 2 closes re energising the wash functions and the wash cycle continues When the program card has been fed so far that row M no longer is...

Page 20: ...witch door lock 2 K52 Relay restart 3 Programmer row M stop 4 S32 Switch restart 5 K52 Relay restart 6 K52 Relay restart 7 H2 Lamp restart 8 B40 Buzzer D Power supply see Power supply and start diagram M 3 2 1 S32 K52 K52 A2 A1 65 13 14 64 K52 H2 B40 66 31 32 D 1 4 S4 X8 5 X8 6 55 203 204 62 B K52 43 44 63 power to wash fuctions ...

Page 21: ...s at OFF This means the time relay is normally in position 12 13 from the start and when the machine runs at wash or distribution speed In this position one of the capacitors in the delay unit 11 is cut out at the same time as the 39 kΩ resistor is short circuit The door can now be opened approx 35 seconds after a power failure or when the programmer knob is turned to 0 and breaking S30 7 Extracti...

Page 22: ...0 4 11 12 2 2 140 X5 11 X5 12 52 4 141 D1 K10 K9 51 52 52 51 X20 6 53 K62 X8 3 X28 2 X28 1 X8 4 202 201 3 X24 7 X24 9 1 F1 Fuse 2 S2 Emergency stop 3 S1 ON OFF switch 4 K54 Relay start 5 F2 Overheat protection wash and distribution motor 6 S3 Switch door 7 S30 Switch programmer 8 S4 Switch door lock 9 K9 Relay low extraction 10 K10 Relay high extraction 11 D1 Delay unit 12 Y80 Door lock coil 13 S1...

Page 23: ...level must not exceed low or high level Level control B1 6 has two switching contacts 21 22 switches at low level and 31 32 switches at high level Which of these contacts activate the water valves depend on whether row N high level 5 is programmed or not If the the above conditions are met the water valves can be controlled by programming row O Cold water 7 row Q Hot water 9 and Row L Cold hard wa...

Page 24: ...r row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Relay K31 drain 5 Programmer row N high level shown in normal position low level 6 Level control B1 low high 7 Programmer row O cold water 8 Switcher S36 cold water 9 Programmer row Q hot water 10 Switcher S35 hot water 11 Programmer row L cold hard water 12 Valve Y14 cold water directly into the drum 13 Valve Y24 hot water directl...

Page 25: ...ply and start sequence Row M stop 1 must not be programmed The out of balance switch must not have tripped breaks K53 51 52 2 power supply Row K drain 3 must not be programmed Once these conditions are met the water valves can be controlled by programming row A 4 detergent prewash row C 6 detergent main wash and row I 9 softener Row E 7 and row G 8 can be used to control another two valves in an e...

Page 26: ...Relay K 53 out of balance 3 Programmer row K drain 4 Programmer row A detergent prewash V1 5 Switch S37 detergent 6 Programmer row C detergent main wash V2 7 Programmer row E detergent V3 8 Programmer row G detergent V4 9 Programmer row I softener V5 10 Programmer row P cool down 11 Valve Y11a cold water compartment 1 Y21 hot water compartment 1 12 Valve Y12 cold water compartment 2 Y22 hot water ...

Page 27: ...orrect level Level control B1 6 has two closing contacts 21 23 low water level and 31 33 high water level Which of these is active depends on whether row N 5 is programmed or not If the above conditions are met the closing contact in thermostat B11 10 is energised The thermostat has three different temperature settings using the three dials B D and F Which setting the thermostat is to follow depen...

Page 28: ... A B Power supply see Power supply and start sequence 1 Programmer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Relay K31 drain 5 Programmer row N high level 6 Level control B1 high low level 7 Programmer row B temperature 1 red 8 Programmer row D temperature 2 blue 9 Programmer row F temperature 3 10 Thermostat B11 11 Relay K21 heating electrically heated valve V51 steam heate...

Page 29: ...eaks to avoid damaging the motor The drain must be closed K31 51 52 3 is closed when the drain is closed If the drain is open the machine will run at distribution speed In this case K31 51 52 3 breaks cutting out the wash windings on motor M1 If the above conditions are met reverser motor M22 8 starts Reverser contacts 1 5 for normal action and 2 6 for gentle action now open and close according to...

Page 30: ...equence 1 Programmer row M stop 2 Speed control B31 3 Relay K31 drain 4 Switch S33 gentle action 5 Reverser row 1 6 Reverser row 2 7 Relay coil K2 wash 8 Motor M22 Reverser D Power supply see Power supply and start sequence M M B31 K31 S33 1 2 K2 M22 A 3 2 1 X31 1 1 2 X31 2 52 51 2 1 b b 4 61 57 56 D 58 59 A1 A2 62 63 ...

Page 31: ...oor must be closed and locked and the programmer knob must be in position I see Power supply and start sequence Row M stop 1 must not be programmed The out of balance switch must not have tripped breaks K53 51 52 2 power supply Row K drain 3 must not be programmed If the above conditions are met the cool down valve Y11b 5 can be controlled by programming row P 4 16 ...

Page 32: ... 2 69 67 63 P Y11b D 3 1 2 77 X9 7 X9 9 4 A M 1 2 3 A Power supply see Power supply and start sequence 1 Programmer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Programmer row P cool down 5 Valve Y11b cool down D Power supply see Power supply and start sequence 1691 ...

Page 33: ...grammed Row 3b 4 in the reverser must be closed see diagram below This contact closes when the wash motor is running and the drum is rotating in the same direction as at distribution speed This prevents unnecessary stress on the motor belts and drum bearings when engaging distribution speed When K31 energized K31 51 52 7 cuts the power supply to relay K2 which de energises the motor wash windings ...

Page 34: ...57 4 A Power supply see Power and start sequence 1 Programmer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Reverser row 3 5 Relay coil K31 drain 6 Speed control B31 7 Relay K31 drain 8 Motor M22 reverser 9 Relay K31 drain 10 Relay K10 high extraction 11 Relay K9 low extraction 12 Relay K53 out of balance 13 Relay coil K3 distribution speed D Power supply see Power supply and st...

Page 35: ...grammed The out of balance switch must not have tripped breaks K53 51 52 2 power supply Row K drain 3 must be programmed Reverser row 3b 4 must be closed The machine will run at distribution speed if the drain is activated Row 3b is used to ensure that the motor windings are switched in at the right speed For more details see Distribution speed When K31 is energized K31 71 72 7 cuts the power supp...

Page 36: ... K31 Y1 99 71 72 78 4 X9 8 X10 1 X10 2 X9 9 S34 2 62 M A Power supply see Power supply and start sequence 1 Programmer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Reverser row 3b 5 Relay coil K31 drain 6 Switch S34 drain 7 Relay K31 drain 8 Valve Y1 drain D Power supply see Power supply and start sequence ...

Page 37: ...oses relay coil K3 22 is energised and connects the wash motor distribution speed windings Relay K63 9 is energised and after about 30 seconds closes relay contact 12 13 9 If row H 5 extraction is programmed Relay coil K9 13 is energised and connects the extract motor windings for low extraction K9 11 12 20 cuts the power to relay K3 22 When the drum speed exceeds approx 310 rpm 220 litre models t...

Page 38: ...rogrammer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Relay K31 drain 5 Programmer row H spin extraction 6 Relay K53 out of balance 7 Level control B1 extraction 8 Reverser row 3b 9 Relay K63 drain 10 Relay K61 Low high extraction 11 Relay K10 high extraction 12 Relay K9 low extraction 13 Relay coil K9 low extraction 14 Relay coil K10 high extraction 15 Relay coil K31 Drain 16...

Page 39: ...o the drum If the drum speed falls below about 310 rpm 220 litre models or 550 rpm 120 litre models Speed control B31 11 switches to position 1 2 Since K31 51 52 12 is closed this energises relay K2 and the machine starts to run at wash speed Once the water reaches the high level Level control B1 5 switches to position 31 33 cutting the power to relay coil K53 10 K53 unlocks Valve Y14 9 closes K53...

Page 40: ... switch S9 4 Relay K53 out of balance 5 Levelcontrol B1 6 Relay K53 out of balance 7 Relay K53 out of balance 8 Switch S36 cold water 9 Valve Y14 Cold water 10 Relay coil K53 out of balance 11 Speed control B31 12 Relay K31 Drain 13 Relay K31 Drain 14 Relay K10 High extraction 15 Relay K9 Low extraction 16 Relay K53 out of balance 17 Relay coil K3 distribution speed D Power supply see Power supply...

Page 41: ... control contacts switch and the programmer motor is energised again Heating During heating thermostat B11 7 switch contact is in position 11 13 This cuts off the power to the programmer motor Once heating has finished the contact switches to position 11 12 and the programmer motor is energised again Out of balance If the out of balance switch trips relay K53 opens see Out of balance K53 51 52 2 t...

Page 42: ... K31 61 62 4 63 A M 1 2 3 13 A Power supply see Power supply and start sequence 1 Programmer row M stop 2 Relay K53 out of balance 3 Programmer row K drain 4 Relay K31 drain 5 Programmer row N high level 6 Level control B1 7 Thermostat B11 8 Relay K31 drain 9 Relay K31 drain 10 Switch S26 step programme motor 11 Motor M21 programmer D Power supply see Power supply and start sequence 27 ...

Page 43: ...e cut out K9 Extraction relay low speed K10 Extraction relay high speed K11 Extraction relay high speed not used for 380 220 V motor X1 Delay unit relay circuit which delays the switching off of the doorlock s electromagnet from 20 to 30 seconds This makes it possible to open the door after the corresponding time after the programme stop X3 Reverser provides start impulses to reversing and extract...

Page 44: ...lector for extraction speed D1 Delay unit a capacitor circuit which delays switching off of the door lock solenoid and thereby makes it impossible to open the door before the delay time has expired F12 F13 Motor fuses K18 Relay drain tank K19 Relay pump K71 Relay MU1 LC1 Interference suppression unit LC2 Interference suppression unit MU1 Motor control unit for main motor s direction of rotation sp...

Page 45: ...he correct water level and the temperature selected on the thermostat have been reached The advance of the card continues when the functions are completed Repair instructions Check that the synchronised motor of the automatic card device is live Note that the microswitch side H Y11 which reads the dial must be actuated The microswitch for the synchronised motor V side must also be switched on Chec...

Page 46: ...e automatic card device dial to position 1 4 Slowly push the card out and in and check that all the microswitches switch off within the two areas on the card It is advisable to use a buzzer for this check 5 If any of the microswitches need to be changed adjusted remove the two screws which hold the black protecting plate and remove the protecting plate If necessary replace faulty microswitches 6 W...

Page 47: ...d in the program memory The memory is in the form of two memory chips see diagram below The lower chip which contains memory information that cannot be changed contains instructions about operation service program relay control sensing of inputs etc It also contains the standard programs supplied with the machine on delivery The upper memory chip stores programs created by the customer The content...

Page 48: ...the chip is not faulty Carefully remove the chip from its socket and transfer it to the new board IMPORTANT The memory chip must be installed the right way round in accordance with the markings on the chip and the socket Check that the programs in the transferred memory chip can now be selected with the new circuit board Check that the programs statistics are correct by selecting program number 00...

Page 49: ...screws and put back the board connectors and the tube to the level detector Removing the control panel and circuit board Unplug the board connectors and the tube to the level detector Remove the two metal clips by pulling them straight upwards Pull the unit forward and outward so that the two metal tongues unlatch from the fixing eyelets 23 Programmer 23 1380 Ribbon cable Guard strip 1378 Installi...

Page 50: ...gs one of which has a centre tap The secondary voltages are 11 14 volt and 2 x 12 16 volt The diagram of the transformer is given below On the secondary side there are references to the second board terminal numbers for the control voltages 23 6 1105 12 16 V 12 16 V 11 14 V 0 V 208 V 220 V 240 V X5 4 480 V 11 14 V X5 5 X5 3 X5 1 X5 2 12 16 V 0 12 16 V 480 V 240 V 220 V 208 V 0 V 23 Programmer ...

Page 51: ...lete motor can only rotate in one direction If the reverser motor is live but the motor is not running replace the motor Remove the clamp which holds the motor Mark up the push ons of the motor connections and remove them Replace the motor with a new one Check that the cogs enter the reverser correctly Connect the cables and put back the clamp If the motor runs but the reverser cylinder does not a...

Page 52: ...ble contacts Solenoid with coil and core The upper half of the core is suspended by springs and attached to the moving contact bridge The fixed lower half of the core is fitted with screened windings which divide the flow through the core The flow must never falls to zero and mains hum is prevented 25 Contactor 25 1 Magnet core Screen winding Securing plate Coil Securing plate Movable contact brid...

Page 53: ...lean and undamaged Reassamble and replace the contactor The contactor hums considerably Loosen and take the contactor apart as described above Check whether or not the screen windings are intact A damaged screen winding causes a loud hum If this is the case replace the contactor Check for foreign particles on the contact surfaces of the magnet core Clean carefully with a fine emery cloth if necess...

Page 54: ...xiliary contact block for increasing the number of contacts The magnetic core is split with the upper part which carries the moving contact block being spring secured The fixed lower portion of the core carries shading windings which modify the phase of the flux trough the core so that it never reduces to zero eliminating 50 60 Hz hum 25 Relay 25 1 G016 Auxiliary contact block Moving contact block...

Page 55: ... Relay is sticking Remove and dissamble the relay as described above Check that the coil does not have any sharp edges or flash that are is preventing free movement of the moving part of the core Rub off any sharp edges or flash if necessary Check that the moving contact carrier can move freely in the relay casing and that the moving contacts are correctly located in their housings Relay is sticki...

Page 56: ... machine and select a standard program Check the low level during pre wash or main wash and high level during rinse Fast forward with the start button Check that the levels agree with the illustrations Action in the event of overfilling Check the hole in the nipple on the underside of the level control Clean as required Note that the hole has a restrictor which must not be enlarged Check that the ...

Page 57: ...ss the terminal pin Remove the hose from the drain valve Blow carefully into the hose and check the terminal s function with the measurement instrument The machine not filling with water can also be caused by burnt contacts Replace the level control if this is the case Replacing the levelcontrol Identify the connections i e by marking so that they can be connected to the correct pins Clear the hos...

Page 58: ...t the zero level before the mid level Zero level adjustment Make sure there is no water in the drum Set the service switch to position 4 Service program Disconnect the tube from the level detector Read off the level on the display bottom row left The reading must be between 0 and 4 If necessary adjust with potentiometer P2 Mid level adjustment Connect a pressure of 300 mm water gauge to the level ...

Page 59: ...nts if any and starting the spin LEVEL 1 cannot be reprogrammed and is shown as a reference only The reading at LEVEL on the bottom line of the display increases as the water level rises in the drum When the desired level is reached press START again to shut the water walve The water level can now be read off on the bottom line The TEMP indicator shows the inlet temperature of the water On the bas...

Page 60: ...B C and D are activated The selection of the appropriate contact is controlled by the programmed card in the automatic card device Repair instructions Thermostats should be replaced as repair is not recommended Replacement of sender To prevent heating of the sender a digital instrument shall be used to measure the sender NTC resistor The resistance between the sender cables shall be 1 kohm at room...

Page 61: ...weight of the machine If the counterweight and subsequently the sensor move outside a certain area the sensor will activate the microswitch via the operating arm The operating power to the spin relay is consequently cut and the timer switches over to washing speed while at the same time the machine takes in cold water to the high level The timer then switches over to distribution speed and a new a...

Page 62: ...f the sensor If necessary adjust by moving the sensor carefully bending the attachment plate of the microswitch Unbalance cutout switches off several times Unsuitable batch of washing Unbalance cutout incorrectly adjusted see above mentioned check Inferior shocks absorbers see 43 Frame 28 Unbalance cutout 28 2 Fas Imbalance cutout Breaking contact imbalance relay Coil imbalance relay Imbalance cut...

Page 63: ...king device 1 Door locked Microswitches on the side of the door lock ON 2 Timer at position 1 Door lock s solenoid A1 locks the handle making it possible to open the door The door lock s micro switch is actuated by the solenoidand arrives at position ON 3 Programme is run 4 Programme end Pro Capacitor in the delay gramme dial in pos 0 circuit X3 is discharged over the solenoid The solenoid release...

Page 64: ...itches Switch S3 indicates that the door is locked and switch S4 that the coil is activated Delay unit The delay unit is mounted in the control unit It consists of a printed board with two capacitors and a time relay The dealy unit controls the time for the door locking after the program is finished or in case of electrical cut out Locking arm The arm is placed between the door handle and the lock...

Page 65: ...the ON OFF switch S1 is in position OFF This means that the contact of the time relay normally is in position 12 13 directly form start and when the drum is rotating with wash or distribution speed During this circumstance one of the capacitors is disconnected and at the same time the 39 kΩ resistance is short circuited The door can now be opened 35 seconds after a power cut out or when the progra...

Page 66: ...er for interruption in the coil Check that the delay unit receives voltage Check that switch S3 in the locking unit is activated when the door is closed and door handle is closed position The machine does not start in spite that the door is locked by the coil Check that switch S4 is closed when the coil is activated Repairing The door lock is an important safety device Therefore a faulty locking u...

Page 67: ...ed and switch S4 that the coil is activated Delay unit located inside the automatic control unit This unit consists of a circuit board which controls the time that the door remains locked in a power cut Locking arm which connects the door handle with the lock unit The arm relays the mechanical action of the door handle to the lock unit Låsenhet Låsarm Låsvred Brytare S4 Dragmagnet Brytare S3 Fördr...

Page 68: ...he delay unit works When the machine is energised the delay unit is fed phase and neutral on X194 5 and X194 4 respectively The door lock coil Y80 is then fed phase via a normally closed relay contact and neutral from X194 3 The relay coil acts on two conditions that the drum is at a standstill and an open signal from the programmer circuit board One side of the relay coil receives a neutral when ...

Page 69: ...X194 4 Should be 220 V AC If not the open signal from the programmer circuit board is absent Check pcb and cables between pcb and delay unit If the door is still locked replace the delay unit Door does not lock Conditions door closed and wash program activated Measure the voltage between the following points 1 X194 1 X194 4 Should be 0 V AC If the voltage is 220 V AC the programmer circuit board w...

Page 70: ...belt tension devices The extract motor is screwed to a mobile plate which moves via oblong holes in the motor bridge This is used to tension the belt drive between the motors It is possible to tilt the entire motor bridge with the use of the oblong holes on the wash motor side This is used to tension the V belt up to the wash drum The motors are equipped with thermal guards which are placed in the...

Page 71: ...to the motor control unit in the event of the motor overheating i e if the temperature exceeds 130 C The various motor speeds for normal action distribution and extraction are controlled by a microprocessor based motor control unit MU1 The control signal for the motor control unit goes via a speed selector which the operator can also use to select specific extraction speeds for low and high extrac...

Page 72: ...er sends signals for either low or high extraction The operator selects the extraction speed required by means of the speed selector thumb wheel on the machine front The speeds are selected as follows FLE 120 MP FC Low extraction High extraction speed G factor speed G factor 1 340 40 4 590 120 2 420 60 5 680 160 3 510 90 6 760 200 7 850 250 8 950 310 FLE 220 MP FC Low extraction High extraction sp...

Page 73: ...ult can be caused by interruption in one of the coils Motor locks Breakdown of bearings replace motor Motor does not turn Check belt tension When checking the belt tension or when changing belt follow the instructions shown NOTE Checking the belt tension should always be a part of the regular maintenance FLE FLE MP Belt between the wash motor and extraction motor Release and adjust backing plate t...

Page 74: ...he required number of shims Each one is 0 1 mm Fit the pulley to the shaft Check the airgap Motor control FLE MP FC Machines with frequency control On the motor control circuit board there is a yellow LED which indicates various types of fault 5 30 Indication Cause The LED flickers Motor current is at its limit The LED comes on and stays on Undervoltage in feed to motor control The LED flashes for...

Page 75: ...the motor is receiving the correct control code from the speed selector circuit board Measure at connection X99 1 4 with XM2 1 as reference point Speed pin 1 pin 2 pin 3 pin 4 0 Stop 0 V 0 V 0 V 0 V 1 Wash speed right 0 V 0 V 0 V 24 V 2 Wash speed left 0 V 0 V 24 V 0 V 3 Distribution 0 V 0 V 24 V 24 V 4 Stop 0 V 24 V 0 V 0 V 5 Reduced wash speed right 0 V 24 V 0 V 24 V 6 Reduced wash speed left 0 ...

Page 76: ...s disconnected the two motors a signal is sent to the wash motor to run at distribution speed This is to protect the ball bearings of the wash motor against vibrations from the extraction The speed guard has a potentiometer for the adjustment of the cutout point and an LED which indicates when the cut out point has been reached Repair instructions Speed guards should be replaced as repair is not r...

Page 77: ...e operating The rotation guard consists of a circuit board in the automatic control unit and a sensor in a holder on the machine rear There is a magnet on two of the spokes of the pulley Each time a magnet passes the sensor a contact closes inside the sensor and it relays a pulse to the rotation guard When the machine is at a standstill the rotation guard relays K1 and K2 are closed which means th...

Page 78: ...gainst the valve diaphragm by the pressure spring of the electromagnet When the magnet is energised the armature lifts opening the hole in the centre of the diaphragm so that the accumulated pressure can be relieved through the outlet The water pressure in the supply line can lift the diaphragm off the valve seat and the valve opens A fine mesh strainer is fitted inside the inlet line in order to ...

Page 79: ...e valve refuses to open Check that the coil is being energised Take measurements at the coil to look for a break or short circuit Take the valve apart and check the openings in the valve diaphragm Check the inlet strainer and clean if necessary Loosen the coil and clean the surfaces of the magnet core The valve refuses to close Check that the coil is de energised The valve is normally closed when ...

Page 80: ...er disc pressed down on to the membrane by the compression spring above the solenoid armature Energising the solenoid raises the armature against the spring opening the hole in the middle of the membrane and releasing the water pressure above the membrane The water pressure then raises the membrane from the valve seat and the valve opens The inlet pipe contains a fine mesh strainer to trap solid p...

Page 81: ...emove the coil and clean the armature The valve does not close Check that the coil is de energised The valve is normally closed when the coil is de energised Check the return spring Check the membrane pilot pressure opening Dismantle the valve 1 Carefully prise off the coil using a screwdriver and pull the coil off the stem of the valve 2 Place the special tool over the stem so that its teeth enga...

Page 82: ...ragm is in contact with the outlet of the valve where there is no pressure the water pressure from below is insufficient to lift the diaphragm so that the diaphragm forms a seal against the valve seat When the magnet is energised the opening from the top of the diaphragm to the outlet of the valve is opened Since the diameter of this opening is greater that that of the pilot opening the diameter o...

Page 83: ... content it is recommended that the 0 5 mm nozzle should be replaced with a 0 8 mm nozzle Valve does not open Check for voltage at coil Measure the resistance of the coil to check for short circuit or open circuit Dismantle the valve and check that the armature is not binding If necessary clean to remove scale particularly in the ducts of the valve between the top and bottom of the diaphragm Remov...

Page 84: ...entre of the plunger When the overpressure on the upper side of the plunger is gone the steam pressure in the supply line can lift the plunger and valve head and the valve opens Repair instructions It is vital to the operation of the steam valve that the pilot pressure and relief holes are clean and unobstructed For this reason the valve should be taken apart and cleaned at specific intervals whic...

Page 85: ...iston downwards and opening the valve When the motor is activated and begins to rotate the plunger rod is screwed upwards via the gear the diaphragm is compressed forcing the plunger upwards and the valve closes The overfilling connection is connected to the upper half of the washing drum and the water and suds are led directlyto the waste outlet should the inlet valves or level control cease to f...

Page 86: ...tor Brown cable 60 Hz Blue cable common Black cable 50 Hz Tensioning the Return Springs With the valve housing removed Turn the return spring so that the spring s tounge lies against the stop screw Place the valve housing over the return spring so that the pin on the spring fits into the inlet of the piston rod CAUTION The piston rod shall be fitted so that its input is longitudal with the housing...

Page 87: ...ashing while also stopping any fumes from the detergent solution from rising up into the detergent container The lid of the container is made of rubber has a simple and robust design and is bolted to the top panel of the machine A siphon device in the fabric conditioner compartment makes sure that it is completely emptied and that no conditioner remains behind Repair instructions When replacing th...

Page 88: ...universal instrument check if one of the elements are burned out Lime deposits can cause reduced element performance refer to manufacturer s instructions for correct use of descaler Select permanent press 90 program To access element Remove lower protective plate at the front of the machine Fold up the rubber strip at the outer ends of the stay which is fitted above the lower protective plate and ...

Page 89: ... turn The counterweight on the inside is now in a position to permit the element to be withdrawn Insert a new element turn the centre screw a 1 4 turn and tighten the nut Fit clamps washer and nut through the opening in the inner drum Fit the cover to the inner drum Check that there are no burns on the screw head or the cover Connect element NOTE Earthing Check there is no leak by the element and ...

Page 90: ... absorber is fitted between the drum and frame by each spring The 120 litre model has twin shock absorbers at the front Repair instructions The spin cutout is repeatedly triggered Check the shock absorbers replace them if required Note that the shock absorbers should be fitted with the pluger rod upwards Check the attachment of the springs on the 60 litre model the mounting bolt should protrude ab...

Page 91: ...h spin speed is not connected until the low spin speed has lasted for a certain time When the timer relay is live the circuit for low spin speed is connected and the timer relay clock is set on a pre selected time The circuit for high speed spin is made live when the slelected time has passed Repair instructions The timer relay should be replaced as repair is not recommended Replacing the timer re...

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Electrolux FLE120, Service Manual

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