Kuppersbusch EMWK 1060.0 User manual

e{y}g}
]eocIHNHFH

Service Manual: H4-070-52-01
Responsible: D. Rutz KÜPPERSBUSCH HAUSGERÄTE AG
Email: [e-mail]
Tel.: [phone] Kundendienst
Fax: [phone] Postfach 100 132
Date: 06.09.2002 45801 Gelsenkirchen

Service Manual EMWK 1060.0 3
For internal use only
List of Contents
1. General ............................................................................................................................ 4
1.1 Installation and electric connection ....................................................................... 4
2. Notes on safety ...............................................................................................................6
3. Technical data................................................................................................................. 7
4. Accessories supplied..................................................................................................... 8
4.1 What cookware may be used in your appliance?.................................................. 9
4.2 Power levels and their applications ..................................................................... 10
5. Control elements and modes of operation ................................................................ 11
5.1 Control panel ...................................................................................................... 11
5.2 Setting the clock .................................................................................................. 12
5.3 “Memotime”function............................................................................................ 13
5.4 Programming the modes ..................................................................................... 13
5.5 Automatic, consecutive defrosting and cooking processes................................. 15
5.6 Retrieving recipes already stored (“Auto”buttons).............................................. 16
5.7 Rapid heating ...................................................................................................... 17
5.8 Children's safety device....................................................................................... 17
5.9 Turntable stop button .......................................................................................... 17
6. Cleaning ........................................................................................................................ 18
7. Safety precautions during troubleshooting............................................................... 19
8. Component check ........................................................................................................ 20
8.1 Maintenance of the turntable motor..................................................................... 20
8.2 Maintenance of the power cable ......................................................................... 20
8.3 Magnetron check - Resistance measurement ................................................... 21
8.4 High-voltage transformer .................................................................................... 21
8.5 High-voltage capacitor ........................................................................................ 21
8.6 Diode ................................................................................................................... 22
8.7 Microwave leak test............................................................................................. 22
9. Measuring the output power of the magnetron ......................................................... 23
10. Troubleshooting ........................................................................................................... 24
11. Wiring diagram and legend ......................................................................................... 25

4 Service Manual EMWK 1060.0
For internal use only
1. General
1.1 Installation and electric connection
1. After you have taken the appliance out of the packing, remove the protective sleeve which holds
the turntable, its holder and all the accessories.
2. There is a plastic bag with assembly material in the oven cavity. Please take this bag out of the oven.
3. Remove the two screws "X" from the attachment section under the microwave oven.
4. Attach the metal strip "A" with the two screws "X" you have just undone.
The appliance needs an adequate air supply. The opening in
the strip must therefore be at least 280 cm².

Service Manual EMWK 1060.0 5
For internal use only
1. Mount the attachment section Bin the right position in the niche.
2. Make sure that there is still a gap on both sides of the attachment section. Screw the section tight
with the screws H.
3. Open the cover of the vapour extractor Cfull. Push the appliance into the niche. Carefully push the
front of the appliance over the attachment section B.
4. Keep pushing until the oven front Gis flush with the cupboard and the openings Dunder the oven
are located on a plane with the openings Ein the attachment section B.
5. Secure the appliance to the attachment section Bwith the screws F.
6. Mount the attachment section in such a way that the two lips protrude over the edge of the niche
bottom and are flush at the front.
Electric connection
•Only connect the appliance to socket outlets with a fuse of at least 16 A. Also check that the main
fuse of your home has a minimum output of 16 A so that it does not suddenly blow during
operation of the microwave oven.
•Before operation, check whether the mains voltage is the same as that indicated on the name/rat-
ing plate of the appliance and whether the socket outlet is effectively earthed. The manufac-
turer assumes no liability for damage which occurs through the non-observance of these
regulations.
Caution: The mains plug of the appliance must be accessible at all times.

6 Service Manual EMWK 1060.0
For internal use only
2. Notes on safety
The purpose of this service manual is to provide the customer service technicians who already have the
technical knowledge necessary to repair microwave ovens with specific information on the mode of
operation of the EMWK 1060.0.
Caution!
Risks and damage may arise for the user as a result of improper repairs!
It is imperative to observe the following notes in order to prevent electric shocks:
•The housing and frame may be conductive in the event of a fault!
•Do not touch any components in the appliance, even modules may carry mains voltage!
•Always disconnect the appliance from the mains before starting repair work!
•Always use a residual-current-operated circuit-breaker if tests are required while the appliance is
energised!
•The safety earth terminal must not exceed the standardised values! It is of crucial importance for
people's safety and the proper functioning of the appliance!
•On completion of the repair work a check to VDE 0701 or a corresponding national regulation must
be conducted!
•On completion of the repair work a functional test must be performed!
•On completion of the repair work a leak rate measurement must be made!
It is essential to observe the following notes in order to prevent damage to the appliance or the
components:
•Observe regulations on electrostatic hazards!
•Never attempt repairs through the indiscriminate exchange of components!
•Always proceed systematically and observe the notes on troubleshooting!
•Do not take any measurements in the high-voltage circuit during operation. Risk to life and limb!

Service Manual EMWK 1060.0 7
For internal use only
3. Technical data
Voltage 230V - 50Hz
Max. power consumption 3000 W
Microwave output power 1000 W
Magnetron
Safety thermostat
Goldstar LG 2M246 - 050GF
Cooking compartment fan
Winding
Plaset 23 W
120 W (at 20 °C)
Temperature sensor NTC Bowthorpe Thermometrics JS3684
-10 °C / 220 °C
Oven heating element R1 178V /271W
R2 47V / 304W
Grill heating element 1500 W
Break contact for ventilation
duct
ELTEK 100332.14 / 3.5 W
0 - 105 °C
Transformer
Primary winding
Secondary winding
Filament winding
DGN
DEL-950NTC
230V - 1.3 W
2430-96
3.4 V
Capacitor 1.00 µF
Diode H V FciHV0309
Fan
Winding
Plaset - 20 W
170
Protective diode FCI HV 06X1P5
Turntable motor JAEIL ST-16
3 W
Lamp 25 W
Thermal fuse Fusit or Omega
EM8A

8 Service Manual EMWK 1060.0
For internal use only
4. Accessories supplied
Turntable holder
The turntable holder and the turntable must always remain in the
oven and are used for all functions. Never place objects other
than the turntable directly on the holder. We recommend you to
use a mild cleaning agent, luke-warm water and a soft cloth to
clean the turntable holder.
Turntable
The turntable is suitable for use for all functions. It collects
dripping meat juice and bits of food and thus prevents the oven
cavity from becoming unnecessarily dirty. It can also be used
directly as cookware. The turntable can be cleaned in a
dishwasher. It must always be able to move freely.
Low grid
Mode - only hot air oven:
For all traditional types of baking, especially for baking cakes.
Combination function - microwaves + hot air oven and
microwaves + grill:
For the rapid cooking of meat, potatoes, some cakes and
dishes topped with cheese (e.g. lasagne).
Medium-high grid
Only microwave function:
For all types of cooking on two levels AT THE SAME
TIME
(For example: large amounts of food or different foods).
High grid
Mode - only grill:
For all types of grilling

Service Manual EMWK 1060.0 9
For internal use only
Rectangular grid
Mode - only hot air oven:
Suitable for all traditional methods of cooking in
rectangular and round dishes for baking cakes.
4.1 What cookware may be used in your appliance?
In the mode “only microwaves”and in the combination modes with microwaves all containers made of
glass (Pyrex even better), ceramic, porcelain or terracotta may be used as long as they have no
decorations and metal parts (decorative or gold edges, handles, feet). Heat-resistant plastic containers
(200 °C) may also be used.
Containers made of metal, wood, straw and crystal are unsuitable for cooking with microwaves.
At this point it should be recalled once again that the microwaves heat the food and not the cookware
and therefore the meals can be cooked directly in the serving dishes; this dispenses with the use and
subsequent washing-up of pots and pans. However, it is possible for the very hot food to transfer its heat
to the plate, thus necessitating the use of oven cloths.
If the appliance is set to the modes “Only hot air oven”or “Only grill”, all containers suitable for a
standard 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 following
small test:
Place an empty container in the oven for 30 seconds at the maximum power level (function “Only
microwaves”). If the container does not become warm at all or only slightly, it is suitable for cooking with
microwaves. If, on the other hand, it heats up a lot (or sparks develop), it is unsuitable.
Mode Only microwaves Combination mode Only hot air/grill
Glass YES NO NO
Pyrex YES YES YES
Glass ceramic YES YES YES
Terracotta dishes YES YES YES
Aluminium foil NO NO YES
Plastic YES NO NO
Paper or cardboard YES NO NO
Metal containers NO NO YES

10 Service Manual EMWK 1060.0
For internal use only
4.2 Power levels and their applications
In order to ensure maximum possible flexibility during the cooking process, the microwave oven was
equipped with different power levels:
1000 W Very rapid heating of liquids and (fresh or deep-frozen) food and for cooking vegetables
750 W For cooking fish and poultry in general
500 W For melting chocolate and chocolate coatings and for cooking meat in general
(roasts, meat kebabs etc.)
300 W For very slow cooking, e.g. braising joints, and for heating cakes and pastries.
150 W For baking certain types of cake and for sensitive foods (fish, roast beef etc.)
For defrosting