manualshive.com logo in svg

Milnor Emerald EX-15, Operating & Maintenance Manual, Page: 83 / 87

Share
Download
Milnor Emerald EX-15 Operating & Maintenance Manual Download Page 83

79

Trouble shooting

Turn the machine’s wall switch off and on again.
Start a program.

Error code returns

No error code

Check the motor control unit input voltage
(120/230 V) at connector X311.

Voltage too low

Voltage correct

Check input voltage at machine connection
terminal X1.

Voltage too low

Voltage correct

37E

Motor control unit indicating
DC voltage level too low.

Error codes which may arise on the control panel display

1

8

3333

Error code/symptoms

Fault-finding

X311

Transient fault. No action
required.

Fault in motor control unit.
Replace unit.

Fault in wiring, in interference
suppression circuits LC1 or
L1.

Investigate cause of fault in
power supply beyond the
machine.

Cause/Action

Summary of Contents for Emerald EX-15

Page 1: ...HINE PLEASE ENTER THE FOLLOWING INFORMATION AS IT APPEARS ON THE MACHINE S DATA PLATE S MAKE CERTAIN TO KEEP THIS MANUAL IN A SECURE PLACE FOR FUTURE REFERENCE MACHINE TYPE OR MODEL MACHINE SERIAL NUMBER S ELECTRICAL CHARACTERISTICS ________ VOLTS _______ PHASE ______ HZ OPERATING MAINTENANCE MANUAL EX 15 and EX 25 Emerald Series 438 9030 01 02 97 02 ...

Page 2: ...CHINE S SHOULD NOT START b CLOSE THE DOOR to start machine operation and while it is operating attempt to open the door without exerting extreme force on the door handle The door should remain locked If the machine can start with the door open or can continue to operate with the door unlocked the door interlock is no longer operating properly The machine must be placed out of order and the interlo...

Page 3: ...terminado su ciclo la luz operativa esté apaga da y el cilindro de lavado haya completamento terminado de girar 2 No interferia o manipule el switch o la cerradura de la puerta 3 No trate de abrir la puerta o meta las manos dentro de la máquina para meter o sacar ropa mientras la máquina está en operación pues puede resultar seriamento herido LAS MÁQUINAS NO DEBEN SER USADAS POR NIÑOS SAFETY AND W...

Page 4: ...re necessary for all electric power wiring The interlock of the door must be checked daily for proper operation and must not be bypased All seepage in the system due to faulty gaskets etc must be repaired immediately All service personnel must be fully familiar with the operating manual before attempting any repair or maintenance of the machine This machine must not be sprayed with water otherwise...

Page 5: ... the drum begins the extraction cycle at distribution speed to distribute the load before extraction at high speed The high extraction speed of the drum produces a G factor of approx 300 which ensures a high degree of water extraction The machine has an electronic program control unit with built in wash programs which can be modified through the use of option buttons The program control unit also ...

Page 6: ... 3 16 in Volume 65 litre 2 3 cu ft Drum speed Wash 48 rpm Distribution 90 rpm Extraction 550 700 1020 rpm G factor During wash 0 8 During extraction 300 Motor speed During wash 415 rpm During distribution 780 rpm During extraction 4760 6060 8820 rpm Voltage requirements 120 V 1 Phase 60 Hz or 208 240 60 1 Rated output power Max Frequency controlled motor 700 W 0 9 HP 0 90 VAC 0 250 Hz Overcurrent ...

Page 7: ...olume 100 litre 3 5 cu ft Drum speed Wash 48 rpm Distribution 90 rpm Extraction 550 700 1020 rpm G factor During wash 0 8 During extraction 300 Motor speed During wash 415 rpm During distribution 780 rpm During extraction 4760 6060 8820 rpm Voltage requirements 120 V or 208 240 V 1 Phase 60 Hz Rated output power Max Frequency controlled motor 1500 W 2 0 HP 0 90 VAC 0 250 Hz Overcurrent protection ...

Page 8: ... A B C D E F G H I K L M N EX 15 mm 720 660 1100 440 905 60 60 130 235 290 150 360 630 inch 28 11 32 26 43 5 16 17 5 16 35 5 8 2 3 8 2 3 8 5 1 8 9 1 4 11 7 16 5 29 32 14 5 32 24 13 16 EX 25 mm 720 820 1100 440 905 60 60 130 235 290 150 360 630 inch 28 11 32 32 9 32 43 5 16 17 5 16 35 5 8 2 3 8 2 3 8 5 1 8 9 1 4 11 7 16 5 29 32 14 5 32 24 13 16 2 1 A B G D C E Rear side L 5 N Technical data ...

Page 9: ...ose to a floor drain or open trough In order to make installation and servicing the machine easier the following clearances are recommended At least 20 between the machine and the wall behind and a minimum of 2 on both sides of the machine whether installed next to the wall or other machines Where space is limited it is possible to reduce this distance to a minimum of 1 at the rear and sides since...

Page 10: ...the chassis never by the door or door handle Remove the four security bolts holding the drum to the chassis NOTE These security bolts must be removed before operating the machine or it may be damaged Check that the machine is level and steady Adjust the level by using the four adjustable feet check first that they are screwed in as far as possible Lock the feet using the lock nuts when the machine...

Page 11: ...s are labelled for hot and cold water connections Hoses should be flushed through before being connected to the machine Connection hoses should be 3 4 reinforced rubber hosing not to exeed 6 ft in length Make sure the hoses have no sharp bends or angles Water pressure should be maximum 142 psi 10 kp cm2 recommended 25 85 psi 2 6 kp cm2 7 0248 1597 1598 Cold water Hot water Fig 7 Fig 8 Fig 9 Instal...

Page 12: ...ired minimum 7 1 psi 0 5 kp cm2 maximum 114 psi 8 kp cm2 recommended 57 psi 4 kp cm2 Check that there are no sharp angles or bends in the connection hose Drain connection Connect a 50 mm 2 pipe or rubber hose to the machine s drain pipe Avoid sharp bends which may prevent proper draining The drainage pipe should be located over a floor drain drainage channel or similar so that the distance between...

Page 13: ...wire is properly connected Install a 1 phase circuit breaker for the machine s electrical supply Connect the machine s cable between the circuit breaker and the machine Check that the earth ground has been connected in the correct way For the rating of the supply cable check the local regulations Machines connected for 1 phase 120V or 240V AC Installation 12 3150 b Fig 12 ...

Page 14: ...y interlock must be checked for proper operation as follows When washer loading door is open the machine must not start Verify this by attempting to start washer with door open When washer is in operation the loading door is locked and cannot be opened Verify this by attempting to open the loading door when the machine is operating If necessary consult this manual for proper operation of the door ...

Page 15: ...ty interlock as detailed on page 10 of this manual 5 Select the HOT program and start the machine 6 Run through a complete cycle checking for water temperature drain operation and the extract function 7 In the mainwash only hot water should enter If cold water comes in the hoses are improperly connected Reverse hot and cold water hoses NOTE All machines are factory tested prior to shipment Occasio...

Page 16: ...or must be checked daily for proper operation and must not be bypassed All seepage in the system due to faulty gaskets etc must be repaired immediately All service personnel must be fully familiar with the operating manual before attempting any repair or maintenance of the machine This machine must not be sprayed with water otherwise short circuiting may occur Fabric softeners with volatile or inf...

Page 17: ...ing options the user has access to programs for all types of wash loads and degrees of soiling The control panel consists of program selection buttons A option buttons B a combined start pause and rapid advance button C symbols with LEDs D which show the program selected and the program sequence plus an alphanu meric display E The alphanumeric display shows illuminated green characters In the even...

Page 18: ... action as standard NOTE Gentle actions consists of 6 seconds pause as opposed to 18 seconds rotation and 6 seconds pause for Normal action Add the correct amount of detergent and fabric softener Press the START button 3426 2288 2289 2290 3427 3435 23 22 21 20 Fig 19 Fig 20 Fig 22 A B Operating Instructions 19 24 Fig 21 Perm Press Quick Wash 2 3 4 5 START Hot Warm Cold Delicate Heavy Soil 6 1 7 He...

Page 19: ...as this character is still flashing a new program can be selected without the drain opening This means you still have the chance to change the setting if the wrong program has been selected Do as follows Press START Select a new program Press START again after making any change in the program selected If for any reason you wish to halt the wash cycle for a time press the START button for a moment ...

Page 20: ...s first installed Each program needs to have been used at least once before the time left will be dis played For a time immediately after START is pres sed the colon character will flash on the display As long as this character is still flashing a new program can be selected without losing anything This means you still have the chance to change the setting if the wrong program has been selected Pr...

Page 21: ... lock will shortly be unlocked The door will not actually be unlocked until the green LED by the door unlocked comes on accompanied by an audible signal This takes about 1 minute Troubleshooting If the machine won t start check that the circuit breaker is on the manual shut off valves for water are open a program has been selected the door is properly locked 3435 Fig 31 3424 3425 Fig 33 Operating ...

Page 22: ...ily Clean detergent residue from the door seal and check that the door does not leak Clean the detergent compartments and wipe down the machine with a damp cloth Check that the drain valve does not leak Start the machine and check that the door is locked while the machine is operating Every three months Check for leaks in valves hoses and connections Remove any lint from the machine s drainage sys...

Page 23: ...inal installation the relevant electronic circuitry will have to be activated before the prices can be programmed in Only trained service personnel may use the service program and program in prices for coin operation Activation of electronic circuitry in machines fitted with coin operation after original instal lation Press the service button Now certain of the buttons switch to being number keys ...

Page 24: ...e value 50 should be stored under code 92 Enter code 91 using the buttons which have become number keys 9 and 1 The display will now show 91 When entering the actual value keep the price programming button activated the switch is located under the top cover at the right front edge Enter the value 1 and then release the button Enter code 92 The display will now show 92 Enter the value 5 Exit the se...

Page 25: ...th the relevant program selector button and the option button Keep the price programming button activated Now the display shows 00 plus the coin sym bol Enter the price via the numerical key functions The START button can be used to enter 0 Release the price programming button This procedure should be repeated for all wash programs 2273 41 Fig 41 ...

Page 26: ...arm 3 Warm 3 Cold 3 Warm Detergent 1 Drain 1 1 1 1 Mainwash 6 Hot 6 Warm 6 Cold 6 Warm Detergent 2 Drain 0 7 0 7 0 7 0 7 Extraction 0 5 0 5 0 5 0 5 Rinse 1 1 Warm 1 Cold 1 Cold 1 Cold Drain 0 7 0 7 0 7 0 7 Extraction 0 5 0 5 0 5 0 5 Rinse 2 1 Cold 1 Cold 1 Cold 1 Cold Drain 0 7 0 7 0 7 0 7 Extraction 0 5 0 5 0 5 0 5 Rinse 3 2 Cold 2 Cold 2 Cold 2 Cold Detergent 3 Drain 0 7 0 7 0 7 0 7 Extraction 4...

Page 27: ... Mainwash 4 Warm 5 Warm 8 Hot Detergent 2 Drain 0 7 0 7 0 7 Extraction 0 5 0 5 0 5 Rinse 1 1 Cold 1 Cold 1 Warm Drain 1 1 0 7 Extraction 0 5 Rinse 2 1 Cold 1 Cold 1 Cold Drain 1 1 0 7 Extraction 0 5 Rinse 3 2 Cold 2 Cold 2 Cold Detergent 3 Drain 0 8 0 8 0 8 Extraction 1 4 4 Total time 13 17 27 4 water fill time not included Wash Cycles ...

Page 28: ... with the incoming hot water The water level controlled machine will now wash the fabrics for 6 minutes The machine is then emptied followed by a 30 second extraction Rinses Hot and cold water are filled to the medium level for the first rinse which lasts one minute followed by spin extraction for 30 seconds After the extraction comes the second rinse in cold water ending with extraction whereafte...

Page 29: ...r is filled for the first rinse which lasts one minute followed by extraction for 30 seconds After this extraction comes the second rinse in cold water ending with extraction whereafter the third rinse is started Fabric softener is automatically admitted during the third rinse The fabrics are rinsed with cold water for two minutes followed by a extraction of four minutes duration 45 WARM Time Temp...

Page 30: ...mptied Cold water is filled for the first rinse which lasts one minute followed by extraction for 30 seconds After this extraction comes the second rinse in cold water concluded with extraction whereafter the third rinse is started Fabric softener is automatically admitted during the third rinse The fabrics are rinsed with cold water for two minutes followed by a extraction of four minutes duratio...

Page 31: ...otation The water level controlled machine will now wash the fabrics for six minutes The machine is then emptied Cold water is filled for the first rinse which lasts one minute followed by extraction for 30 seconds Fabric softener is automatically admitted during the third rinse The fabrics are rinsed with cold water for two minutes followed by a extraction of one minute duration Fig 47 PERM PRESS...

Page 32: ...after the third rinse is started Fabric softe ner is automatically admitted during the third rinse The fabrics are rinsed with cold water for two minutes followed by a extraction of one minute duration During washing and rinsing gentle action is used which is 6 seconds drum rotation and 18 seconds pause then reverse direction and repeat The GENTLE WASH option button does not affect the Delicate cy...

Page 33: ... filled for the first rinse which lasts one minute Then comes the second rinse in cold water whereafter the third rinse is started Fabric softener is automatically admitted during the third rinse The fabrics are rinsed with cold water for two minutes followed by a extraction of three minutes duration QUICK WASH Time Temp Min Prewash Drain Prewash Detergent 1 Drain Mainwash 5 Warm Detergent 2 Drain...

Page 34: ...T gives the customer a total of 5 5 minutes extraction You can easily program the washer to charge more money usually one more quarter if this option is selected The effect of extra extraction depends on the type of laundry washed load size etc GENTLE WASH The normal wash action of a Wascomat washer is 18 seconds rotation 6 seconds pause reverse direction and repeat Selecting the GENTLE WASH optio...

Page 35: ...e which is controlled by water pressure The machine can also be equipped with a drain pump The machine door is of the heavy duty rectangular type which is locked shut while the machine is operating The control panel has seven program selection buttons two option buttons and a combined start pause and rapid advance button Each button has an LED to show the current program selected There are a furth...

Page 36: ...otor Outer drum Control valve drain Heating relay optional Transformer Detergent dispenser Program unit circuit board Control panel Spring Shock absorber Drain valve 51 3318 Motor control unit Automatic control unit Mechanical and electrical design Cradle counter weights ...

Page 37: ...e drum Inner cylinder The inner cylinder is made of perforated surgical stainless steel It is equipped with three lifting ribs and has highly polished side sheets and back with maximum embossed perforated area to assure high flow of water and supplies through fabrics Scientifically correct ratio of cylinder diameter and depth assures maximum washing action The shaft is electrically welded to the r...

Page 38: ...are mounted on a chrome plated non corresive specially hardened sleeve bushing that is mounted on the drive shaft to prevent wear of the seals and shaft The main bearing is fitted machine tight into the bearing trunnion housing A C clamp is placed on the shaft to prevent the cylinder from moving in and out The extension of the bearing trunnion housing supports the rear bearing holding the shaft Th...

Page 39: ...ury by ensuring that The machine cannot be started until the door is closed The door cannot be opened until the wash program is ended and the drum is at a standstill The lock consists of The lock handle door handle which closes the door and presses it against the door seal The door lock which locks the door when the machine is operating The lock contains a delay mechanism in the form of a bimetall...

Page 40: ...ore the bimetal cools enough to release the door lock This gives enough time for the drum to stop rotating and any water in the drum to be discharged the discharge valve will open automatically if the power supply is cut If a fault or error relating to the door locking system should arise the machine will stop and an error code will appear on the display a flashing two digit code followed by E The...

Page 41: ...e the door Unscrew the two screws holding the door lock and take off the mounting plate Remove the trim panel as follows The trim panel is fixed to the outer drum by six plastic rivets Each of these rivets was originally fixed by a wedge tapped into place at its centre causing it to expand Use a suitable tool to tap these wedges to release each one from its rivet This will allow you to remove the ...

Page 42: ...oprocessor controlled Controls the direction of rotation and speed The motor control unit is also used for imbalance monitoring and for calculating the weight of the wash load K21 Relay for heating elements option LC1 Surge protection filter C1 Surge protection capacitance T10 Low voltage transformer which supplies the program control unit with a number of voltages F11 F22 Fuses S Control panel pl...

Page 43: ...tor control water valves and door lock Outputs to the display Serial communication with the motor control unit The program control unit is controlled by the microprocessor which fetches its instructions from the program memory EPROM The EPROM contains instructions for operation the service program control of relays sensing of inputs etc The EPROM also contains the standard programs supplied with t...

Page 44: ...ed e g 13 Press button B The last two digits of a four digit number will now be displayed e g 47 This means that the machine s accumulated operating time is 1 347 hours To switch on service mode Remove the machine top and the cover for the program unit circuit board Press the service switch This switch is on the left hand edge of the circuit board when viewed from the machine front The display wil...

Page 45: ...er will now be displayed e g 13 Enter code 44 The last two digits of a four digit number will now be displayed e g 47 This means that the machine s accumulated operating time is 1 347 hours Mechanical and electrical design Fig 63 2242 2241 Code 43 Code 44 1 347 hours operating time 63 ...

Page 46: ...of a four digit number will now be displayed e g 58 This means an accumulated coin value of 658 currency units or 658 tokens In other words it shows that 658 currency units or tokens have been inserted into the coin mechanism up until the time of the check Mechanical and electrical design Fig 64 2239 2240 Code 41 Code 42 658 currency units tokens 64 ...

Page 47: ... e g 195 Enter code 53 The display will show e g 803 Enter code 54 The display will show e g 480 When these digits are put together they make up the full part number A471 958034 The two digits at the end are an internal version number 2235 2236 2237 2238 A part no 471 958034 80 code 54 internal version no Code 51 Code 54 Code 53 Code 52 65 Mechanical and electrical design Fig 65 ...

Page 48: ...it board must be replaced To check functioning of the level control Start the service program by pressing the service button Now certain of the buttons switch to being number keys 1 to 9 Enter code 24 Now the display will show the current level in the machine on a scale of 1 to 200 An empty machine should show a value between 0 and 4 Press the START button The machine will start to fill Check that...

Page 49: ...te The motor is connected to the electrical system via a quick connector This is a frequency controlled motor Its various operating speeds normal distribution extraction are controlled by a microprocessor based motor control unit E10 in the automatic control unit The motor windings are protected by a thermal cutout device Fig 68 Belt tensioning device 3354 Mechanical and electrical design 68 ...

Page 50: ...e weight of the wash load and for detecting any imbalance present WARNING The voltage at test points 1 4 TP1 4 has a potential difference of approx 100 V in relation to incoming neutral and ground Because of this be careful when measuring Use ungrounded oscilloscopes If the motor control unit has a green LED this will remain lit for as long as there are hazardous voltages present in components The...

Page 51: ...8E Too high DC level in the motor control Motor control unit current limiting function activated Does not give an error code Fault finding The fault finding charts for all error codes are in Chapter 12 Fault finding 1 2 3 4 5 6 7 8 9 1 sec Fault error indication If a fault or error occurs in the motor or motor control unit the latter will indicate this to the program control unit board Information...

Page 52: ...ern Imbalance sensing At the start of every extraction sequence the system monitors variations in the motor torque while the drum is operating at distribution speed If these variations are too great it indicates that the load is unevenly distributed in the drum At this point extraction is halted the motor speed is reduced to wash speed and a fresh attempt to begin extraction starts This procedure ...

Page 53: ...tension The tension of the drive belt is preset at the factory When checking belt tension or after replacing components which affect belt tension follow the instructions contained in the figure Note Correct belt tension is important The tension should always be checked as part of service and maintenance Mechanical and electrical design F 30 N EX 15 F 40 N EX 25 72 Fig 72 ...

Page 54: ...lve in the center of the diaphragm open Because of the difference in diameter between the pilot valve opening and the ventilating hole in the diaph ragm the pressure above the diaphragm drops to a point where the admission pressure below the diaphragm can lift the diaphragm thus ope ning the valve When the current to the solenoid is cut off the plunger spring will press the plunger against the pil...

Page 55: ...ainer and clean as required Undo the coil and clean the surfaces of the magnetic core If the valve does not close Check that the coil is not live The valve is normally closed when the magnet is not energized Check the return spring Check the diaphragm pilot pressure opening Dismantling the valve Pull the coil straight upwards Use a screwdriver if necessary to carefully undo the coil Use the tool s...

Page 56: ...ff water pressure to the drain valve the springs 8 pull back the plunger The return water passes the control valve and is discharged into the waste pipe via the return hose 9 Fault finding To be carried out by authorized personnel only Drain valve will not close Check that Control valve 2 is energized Hoses and control valve are not blocked by disconnecting the supply line 3 from the drain valve a...

Page 57: ...odge between valve and pump Any obstructions to the water flow can easily be removed by taking off the cover on the container There is also a hose connecting the container with the backflow protection device Fault finding Machine will not empty Clean any foreign matter out of the pump Check pump functioning Is the motor energised Has the impeller come loose from the motor shaft Fig 79 Cover Drain ...

Page 58: ...tment 1 This compartment is used for adding detergent to the wash at the start of the Prewash cycle Compartment 2 This compartment is used for adding supplies to the wash at the beginning of the Mainwash cycle Compartment 3 The small compartment is used for adding fabric softener which is flushed down by a siphon action at the start of the third rinse Mechanical and electrical design Fig 80 80 ...

Page 59: ...m is activated Controls in service mode Now some of the buttons switch to being number keys 1 to 9 The start button becomes an ON OFF key The various machine functions can be tested using numerical codes see table on next page The LEDs to the left of the display show which input signals to the program control unit are active To switch off service mode Press the service switch again or switch off t...

Page 60: ...drum not code 19 When START is pressed the heating relay reacts if the water level is above 64 scale units Safety level 21 Drain valve pump 23 Activate door lock When it is deactivated the water drain valve will also open 24 Level check The parameter corresponding to the actual level will be shown on the display not code 24 When START is pressed filling with cold water commences via detergent comp...

Page 61: ...lity of pause function in coin operated machines Can be 1 Yes or 0 No This is set using the priceprogramming switch see Page 39 Program control unit 94 Availability of rapid advance function in coin operated machines Can be 1 Yes or 0 No This is set usingthe price programming switch see Page 39 Program control unit 95 Activate coin op input Can be 1 Active or 0 Off This is set using the price prog...

Page 62: ...erical error code followed by the letter E flashing on and off on the control panel display In the case of error codes 01E 02E 03E and 14E an attempt to restart the machine may be made as soon as the fault error has been remedied without the power supply being switched off For the other error codes a service engineer must be called WARNING When working on the motor control unit The voltage at test...

Page 63: ...n Heated machines 10E The water level is above the safety level set for after drain 12E The program control unit cannot read the program EPROM 13E Program control unit receiving no response from the motor control unit 14E Level system not temperature calibrated Press START to run the wash program Program will run but the water level will not be optimally adjusted 17E Door status switch open even t...

Page 64: ... e water level rising in drum Discharge valve closed Discharge valve open Check that level tube is sound not kinked not come loose from mother board Level tube OK Level tube not OK 01E Acknowledgement signal for water level not received within time allowed X80 6 5 4 3 2 1 X81b X81a 2 1 4 3 2 1 Y11 Y12 Y13 Y34 Y24 Y22 X78 2316 3331 2316 3350 Open taps Press START again Faulty valve Check function a...

Page 65: ...rom the program control unit PCB Short circuit between inputs 3 and 4 LED does not light LED lights Trouble shooting 1 4 X71 2316 02E Door status switch open during program operation Check whether the pin on the door or the plastic slide which the pin presses against are worn Replace any worn parts Continuity fault in wiring or connectors Check wiring and replace if necessary Fault in program cont...

Page 66: ...g Unscrew the door lock Door and door lock Check voltage at door lock between terminals X71 1 and 2 as illustrated Voltage correct Voltage absent or wrong 3390 L N C 1 4 Check voltage 2316 X71 2 1 Error code symptoms Fault finding Transient fault in door lock or program PCB Faulty control output from program control unit PCB Replace PCB Cause Action Faulty wiring between program control unit PCB a...

Page 67: ... program Check whether the error displayed is 04E or 05E 04E 05E Remove PCB connector X74 on program control unit PCB Short circuit inputs 1 and 2 Turn the machine s wall switch off and on again Start a program Check whether the error displayed is 04E or 05E 04E 05E 2 X74 1 2316 3399 Temperature sensor Check voltage Transient fault Temperature sensor faulty Replace sensor Fault in temperature sens...

Page 68: ...back X74 Disconnect the link between wiring and sensor by the temperature sensor Turn the machine s wall switch off and on again Start a program Check whether the error displayed is 04E or 05E 05E 04E 05E Temperature sensing indicates temperature above 98 C short circuit 2316 X74 2 1 3399 Temperature sensor Transient fault Fault in temperature sensing device on program control unit PCB Replace PCB...

Page 69: ...K Discharge valve not OK 06E Water level signal above parameter set on program start up 3350 Faulty control signal to discharge valve from program control unit PCB Replace PCB Connec tion level tube Level tube probably blocked due to fluff of wrongly mounted Clean or replace tube Nipple blocked on drain valve Check the discharge valve see Chapter 38 The service program can be used code 21 to open ...

Page 70: ...nput voltage Valve stops drawing water Valve still drawing water 3350 07E Water level signal above parameter set for safety during program Transient fault or water has been added manually Connec tion level tube Level tube probably blocked due to fluff or wrongly mounted Clean or replace tube Nipple blocked on drain valve Level sensing device on pro gram control unit PCB not working or incorrectly ...

Page 71: ...of relay 21 An incorrect voltage Voltages correct Check voltage at inputs of relay 21 Voltages correct An incorrect voltage Check visually that the relay has reacted Relay has not reacted Relay has reacted On program control unit PCB check the voltage at connector X83 between 1 and 2 230 V Voltage correct Voltage wrong Check input voltage to relay coil 230 V on relay 21 between connections A1 and ...

Page 72: ...es No Turn on wall switch Start a program and let it run Still an error code No error code Check to see if the drain valve is partially blocked or not opening fully Drain valve OK Drain valve not OK 3350 Error code symptoms Fault finding Level tube probably blocked Clean or replace tube Level sensing device on program control unit PCB not working or incorrectly calibrated Transient fault No action...

Page 73: ...ine normal Replace the EPROM Check that the new one has the correct program version Restart machine Error code 12E returns Machine normal 12E The program control unit cannot read the program EPROM Error codes which may arise on the control panel display 2316 The marking on the EPROM must be to the left EPROM Faulty program control unit PCB Replace PCB The old EPROM can probably be reused Old EPROM...

Page 74: ... of PCB Wrong voltage Voltage correct Replace motor control unit Malfunction Function remains normal Check voltage 120 230 V across fuses F21 F22 Wrong voltage Voltage correct 13E Program control unit receiving no response from the motor control unit Error codes which may arise on the control panel display X75 X311 2316 3333 F22 F21 3332 Error code symptoms Fault finding X301 Check wiring and repl...

Page 75: ...d Turn the machine s wall switch off and on again Start a program Error code returns No error code 14E Level system not tempera ture calibrated Error codes which may arise on the control panel display Transient fault No action required Replace program control unit PCB Cause Action Error code symptoms Fault finding ...

Page 76: ...k switch LED ONDoor status switch LED when door not locked OFF when door closed Unscrew the door lock Remove connection to door lock switch C on door lock as illustrated LED ON LED goes out Remove PCB connector X71 from program control unit PCB LED ON LED goes out Error codes which may arise on the control panel display 8 C X71 1 X71 L N Error code symptoms Fault finding 2316 3390 Transient fault ...

Page 77: ...or X71 on program control unit PCB The voltage should be 120 230 V when the door is closed and locked Voltage wrong Voltage correct Check the input voltage to PCB connector X78 120 230 V Wrong voltage Voltage correct 3333 1 X71 6 X78 2316 X302 Error code symptoms Fault finding Cause Action Faulty signal detection on motor control unit Replace motor control unit Transient fault No action required F...

Page 78: ...de 31 34 If no error code arises finally run motor for at least 10 minutes on its highest extraction speed code 33 Error code returns No error code Turn off the machine s wall switch and wait 10 minutes Disconnect connector X3 by motor Short circuit X3 7 and 9 as illustrated to simulate motor thermal cut out Switch on machine power supply start service program and simulate extraction with code 33 ...

Page 79: ...on its highest extraction speed code 33 Error code returns No error code Check the wiring from X312 on motor control unit to X3 by motor Use an ohmmeter to check five conductors as follows X312 3 4 6 7 8 X3 7 9 1 2 3 Also check between the five conductors to eliminate possibility of shorts between any two Wiring OK Wiring faulty Error codes which may arise on the control panel display 32E Thermal ...

Page 80: ...wrong Voltage correct Error codes which may arise on the control panel display Error code symptoms Fault finding 33E Motor control unit receiving start command from program control unit without first receiving lock acknowled gement signal Motor control unit receiving circuitry for lock acknowledgement signal is not faulty 1 X71 6 X78 2316 3333 X302 Transient fault No action required Faulty wiring ...

Page 81: ...ollows X312 X3 6 1 7 2 8 3 Also check between the three conductors to eliminate shorts between any two Wiring OK Wiring faulty 35E Motor control unit indicating short circuit between outputs for motor windings Error codes which may arise on the control panel display Connector X3 male to motor control unit 3402 1 3 9 7 2 1 8 1 3 9 7 2 Connector X3 wiring to motor control unit Connector X312 wiring ...

Page 82: ...nowledgement signal Error codes which may arise on the control panel display Turn the machine s wall switch off and on again Start a program Error code returns No error code Transient fault No action required Fault in motor control unit Replace unit Error code symptoms Fault finding Cause Action ...

Page 83: ...t machine connection terminal X1 Voltage too low Voltage correct 37E Motor control unit indicating DC voltage level too low Error codes which may arise on the control panel display 1 8 3333 Error code symptoms Fault finding X311 Transient fault No action required Fault in motor control unit Replace unit Fault in wiring in interference suppression circuits LC1 or L1 Investigate cause of fault in po...

Page 84: ...30 V at connector X311 Voltage too high Voltage OK 38E Motor control unit indicating DC voltage level too high Error codes which may arise on the control panel display Transient fault No action required Fault in motor control unit Replace unit 1 8 Investigate cause of fault in power supply beyond the machine 3333 Error code symptoms Fault finding Cause Action X311 ...

Page 85: ...board 5 6 ca 1 75 V 6 7 ca 1 75 V 3 4 ca 14 5 V 1 2 ca 13 5 V Voltages correct An incorrect voltage On T10 check the input voltage at connector X178 120 230 V and that the strap is correctly located and in contact with the circuit board OK A fault Machine completely dead Display blank F12 F22 F11 F213332 1 7 X72 2316 F2 F3 Display 2316 3348 X172 1 7 Strap PCB transformer T10 Error code symptoms Fa...

Page 86: ...7 ca 13 5 V An incorrect voltage Voltages correct Remove connector X172 on transformer T10 Measure the voltages between the following outputs on the transformer board 5 6 ca 1 75 V 6 7 ca 1 75 V 1 2 ca 13 5 V Voltages correct An incorrect voltage F2 F3 Display 2316 1 7 X72 2316 3348 X172 1 7 PCB transformer T10 Transient fault No action required Change fuse s and check functioning Fault in wiring ...

Page 87: ...nd check that the door stays locked until 30 seconds after the program is completed Clean the door seal and remove powder residue Check that the door does not leak Clean the detergent compartments and wipe down the machine with a damp cloth Check that the drain valve does not leak and that it opens properly Weekly Remove lint or fluff remnants from the drain opening joints in drain pipes etc Every...

Reviews:

No comments