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Service Manual

12

For internal use only

3.4

After the installation  

• If the oven is to be installed on a permanent basis it should be installed by a qualified technician. In

such a case, the oven should be connected to a circuit with an all-pole circuit breaker with a mini-
mum separation of 3 mm between contacts.

• Only connect the appliance to sockets with a safety delay fuse of at least 16 A. Please also check to

ensure that the main fuse in your home has a minimum output of at least 16 A so that it will not
suddenly trip when the microwave oven is in operation. 

WARNING! 

THE OVEN MUST BE EARTHED. 

• The manufacturer and retailers do not accept responsibility for any damage that may be caused to

people, animals or property if these installation instructions are not observed. 

• The oven only functions when the door is closed correctly. After the first use, clean the inside of the

oven and the accessories, following the cleaning instructions given in the section “Oven cleaning and
maintenance”. 

• Fit the turntable support (1) in the centre of the oven cavity and put

the turntable ring (2) and the turntable plate (3) on top, making sure
they slot in. Whenever you use the microwave, the turntable plate
and the respective accessories must be inside and correctly fitted.
The turntable plate can rotate in both directions.

Summary of Contents for EMWG 1050

Page 1: ...Microwave oven EMWK 1050 EMWG 1050 ...

Page 2: ...ice Manual H4 79 01 Responsible Dieter Rutz KÜPPERSBUSCH HAUSGERÄTE AG E mail dieter rutz kueppersbusch de Phone 0209 401 733 Kundendienst Fax 0209 401 743 Postfach 100 132 Date 21 06 07 45801 Gelsenkirchen ...

Page 3: ...ore installation 10 3 3 Installation 11 3 4 After the installation 12 4 Function tests 13 4 1 Safety precautions microwave energy 13 5 Cleaning 14 5 1 Cavity 14 5 2 Surfaces 14 5 3 Grill 14 5 4 Turntable 14 6 Accessing the individual components 15 6 1 Turntable motor 16 6 2 Door inner frame hinges and closing device 16 6 3 Closing device and door alignment 18 6 4 Control panel 19 6 5 Ventilator 20...

Page 4: ...carried out in accordance with VDE 0701 Associa tion of German Electrical Engineers or the corresponding regulations for your country On completion of repairs a function and impermeability inspection must be carried out On completion of the repair work a leak rate measurement must be made Note It is essential to observe the following notes in order to prevent damage to the appliance or the compone...

Page 5: ...work has been completed Carry out a microwave leakage current test when repair work has been completed 1 2 Electric connection Only connect the appliance to sockets with a safety fuse of at least 16 A Please also check to ensure that the main fuse in your home has a minimum output of at least 16 A so that it will not sud denly trip when the microwave oven is in operation Before operation check whe...

Page 6: ...000 W max 6 levels Grill levels EMWG 1050 1500 W Appliance dimensions WxHxD 595 x 455 x 542 mm approx Niche dimensions WxHxD 560 x 450 x 550 mm Cooking cavity dimensions WxHxD 420 x 210 x 390 mm approx capacity 32 l Weight EMWK 1050 0 38 kg EMWG 1050 0 32 kg Program P00 P01 P02 P03 P04 P05 Power W 0 200 400 600 800 1000 Time ON s 0 6 12 18 24 30 Time OFF s 30 24 18 12 6 0 Program P00 P01 P02 P03 P...

Page 7: ...ve up some air is supplied through the openings in the interior and also between the doorand the control panel Combined mode Air valve down for enclosing the air in the interior The air circulates between the door and the control panel 2 4 Power levels and their applications In order to ensure maximum possible flexibility during the cooking process the microwave oven was equipped with different po...

Page 8: ...3 seconds The dots that separate the hours and minutes will flash but the rest of the clock display will be hidden If you want to see the clock display again press the Clock key again for 3 seconds 2 6 Safety blocking The oven functioning can be blocked for example to stop it being used by children 1 To block the oven press the Stop key for 3 seconds You will hear a sound signal and the dis play w...

Page 9: ...le for the very hot food to transfer its heat to the plate thus necessitating the use of oven cloths If the appliance is set at the modes Only hot air oven or Only grill all containers suitable for a stan dard oven may be used However their shape and size must always permit the turntable to rotate properly To find out whether a container is suitable for a microwave oven please conduct the followin...

Page 10: ...packing material Do not remove the mica cover on the ceiling of the interior This cover prevents fat and pieces of food from damaging the microwave generator Warning The front surface of the oven may be wrapped with a protective film Before using the oven for the first time carefully remove this film starting on the inside Make sure that the oven is not damaged in any way Check that the oven door ...

Page 11: ...e microwave by the door handle since this may damage the inner frame of the door 3 Remove the adhesive tape from the door and carefully install the micro wave in the niche 4 Fasten the microwave on the inside of the frame The appliance needs an adequate air supply The opening on the strip must hence be at least 100 mm wide ...

Page 12: ...in operation WARNING THE OVEN MUST BE EARTHED The manufacturer and retailers do not accept responsibility for any damage that may be caused to people animals or property if these installation instructions are not observed The oven only functions when the door is closed correctly After the first use clean the inside of the oven and the accessories following the cleaning instructions given in the se...

Page 13: ...fective or incorrectly set components in the locking control door locking microwave generator and transmission systems must be repaired replaced or correctly set Service technicians must first remove their watches for all work on or near the magnetron Attention The high voltage capacitor could still be electrically charged about 30 sec after the appliance has been switched off It is advisable to d...

Page 14: ...sier To avoid the danger of bur ning wait until the grill is cold before lowering it Proceed as follows 1 Turn the grill support by 90º 2 Lower the grill gently 2 Do not use excessive force as this may cause damage 3 The mica cover 3 located in the ceiling must always be kept clean Any food remains that collect on the mica cover can cause damage or provoke sparks Do not use abrasive cleaning produ...

Page 15: ... air channel to access Thermostat 90º 150º C Thermal cut off device Halogen lamp transformer Electromagnetic activator Air valve lever Remove the back casing to access Fan motor only wiring and heating Thermostat 150 ºC Remove the turbo chamber to access Recirculating air heater Motor and fan Remove the side panels to access Catch Hinged fastenings Remove the fastening bracket to access Halogen la...

Page 16: ...nges and closing device In order to be able to re use individual elements without any damage we have below listed the correct procedure for removing the door and its components The inner frame is only pressed on without the help of any devices such as screws or pins Removing the door 1 Pull the door right open 2 Insert rivets into the holes of the hinge 3 Pull the door upwards out of the hinges Re...

Page 17: ... sure that the clips are in the proper mounting position 4 Now press the left side and check here too to ensure that the profiles and the clips have been properly fitted 5 Repeat these steps on the other two sides 6 Now press around the inner edges and make sure that the clips are correctly positioned 7 Check all around the outer frame It must be fully inserted and must touch the glass surface Re ...

Page 18: ...26 2 The shape of the original black box was modified so that the box fitted better In order to distinguish between the boxes the new box is now available in white under the same spare part number Please note Now and then the problem may occur with the newly designed holders too when the appliance has been used frequently or when it has been used for grilling for a longer period Expansion of the m...

Page 19: ...e hinged door holder spare part no 528895 must be released in order to relieve the door tension The door will then need to be adjus ted so that the clearance between the door and the control panel is 7 mm The screws are then tightened again 6 4 Control panel 1 Remove the four fastening screws 2 Loosen the four clips on the lower edge first and then those on the top edge 3 Now carefully pull out th...

Page 20: ...t so that the coil spring can move freely 2 Turn the motor anti clockwise to release it 6 6 Convection air 1 Remove the complete pre chamber 2 Remove the nuts in order to loosen it 3 When replacing the chamber pay attention to the pre chamber in the interior to make sure that it is properly connected to the back fastenings Only screw the pre chamber tight after it has been properly aligned Screws ...

Page 21: ...1 Unscrew and remove the glass light cover 1 1 Remove the halogen light bulb 2 Warning The bulb may be very hot 2 Fit a new 12V 10W halogen bulb Warning Do not touch the light bulb surface directly with your fingers because you may damage the bulb Follow the lamp manufacturer s instructions 3 Screw the glass light cover into place 1 4 Connect the oven again to the power supply Lamp holder The glas...

Page 22: ...ty measures safety depends on correct installation and correct operation and maintenance by the customer Service technicians must never be exposed to the microwave radiation which can be emitted by the magnetron or other components producing microwaves if the appliance is not connected correctly or operated improperly Make sure you observe the following instructions 5 1 Safety precautions microwav...

Page 23: ...limit 5 mW cm2 Spacing 5 cm This test is to be performed on the door the lock the microswitches and the magnetron every time maintenance work has been carried out Test equipment 600 ml glass beaker Microwave measuring instrument Test procedure 1 Pour 250 ml of water into the beaker and then place this in the centre of the microwave oven 2 Switch on the microwave oven Set it to 5 minutes at the max...

Page 24: ...ve oven 5 Use an accurate thermometer to measure the exact starting temperature T1 6 Run the appliance for 63 seconds at maximum power 7 At the end of this period quickly stir the water and read off the final temperature of the water The difference between the final temperature T2 and the initial temperature T1 represents the rise in temperature Result The microwave output power of the appliance c...

Page 25: ... in combination mode do not operate the appliance without food In the above mentioned modes do not use any metal containers bags or packing with metal clips for cooking The food does not heat up and is not cooked through Check to see whether you have used metal dishes you have selected a suitable operation time or power setting you have put a larger or colder quantity of food than you normally do ...

Page 26: ... the fan Connect it again The grill does not work Broken grill heater Broken thermostat Defective wiring Check the continuity between the grill heater terminals Check if the terminals are in contact with metallic parts Replace the grill Be sure that the thermostat is working Replace the thermostat Ensure that the terminals of the grill circuit are properly connected Tighten the terminals The fan d...

Page 27: ...e motor and the connections are correct Check the continuity of the motor circuit Replace the wiring With the door closed check if the micro switches are completely actuated The lamp doesn t turn on Lamp blew Defective programmer timer Adjustment of the door system lamp is always on Replace the lamp Check if there are some burned or damaged components Replace the lamp and the programmer timer Atte...

Page 28: ...place the diode Magnetron Magnetron filament in open circuit Magnetron in short circuit Check the continuity of the filament with the cables disconnected If there isn t continuity the filament is broken Replace the magnetron Check the continuity between the magnetron terminals and the body If there is continuity the magnetron is defective Replace the magnetron Digital electro mechanical programmer...

Page 29: ... there isn t any continuity the transformer is defective Replace the high voltage transformer High voltage capacitor Defect isolation between the capacitor terminals Capacitor on short circuit Check the continuity between the terminals of the transformer If there is continuity the capacitor is defective Replace the high voltage capacitor Check the continuity between the terminals of the capacitor ...

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