Miele KM424 User Manual
Operating Instructions  
Ceramic Cooktops  
KM 421  
KM 424  
KM 427  
UV  
To prevent accidents and  
machine damage,  
read these instructions  
before installation or use.  
M.-Nr. 05 647 560  
IMPORTANT SAFETY INSTRUCTIONS  
READ THE OPERATING  
When using your appliance, follow  
basic safety precautions including  
the following:  
INSTRUCTIONS CAREFULLY  
BEFORE USING THE  
COOKTOP  
Installation  
WARNING -  
Be certain your appliance is  
properly installed and grounded by  
a qualified technician in accordance  
with national and local safety  
regulations. The manufacturer cannot be  
held responsible for damage caused by  
an incorrect installation or connection.  
This appliance is only intended  
for residential cooking. The  
manufacturer can not be held  
responsible for damage or  
injury caused by improper use  
or for uses other than those for  
which this appliance is  
To guarantee the electrical safety  
of this appliance, continuity must  
exist between the appliance and an ef-  
fective grounding system. It is impera-  
tive that this basic safety requirement is  
met. If there is any doubt, have the  
electrical system of the house checked  
by a qualified electrician.  
intended.  
The manufacturer cannot be held  
responsible for damages caused by the  
lack, or inadequacy of, an effective  
grounding system.  
Do not connect the appliance to  
the main electrical supply using an  
extension cord. Extension cords do not  
meet the safety requirements of this  
appliance.  
Before servicing, disconnect the  
power supply by either shutting off  
the power main or manually "tripping"  
the circuit breaker.  
3
 
IMPORTANT SAFETY INSTRUCTIONS  
Do not install the cooktop directly  
above a dishwasher, refrigerator or  
freezer. Heat radiated by the cooktop  
may damage them.  
Use  
Do not use the appliance until it is  
properly installed in the countertop.  
This appliance is equipped with an  
overheating protection feature.  
See, "Overheating protection" for  
information.  
If the cooktop is installed above an  
oven, keep the cooktop’s power  
cord from contacting the oven.  
Because of the heat radiated it is  
not recommended to install the  
cooktop above a drawer. It should only  
be installed above a cabinet base unit  
with a dummy drawer front and an  
additional protective base between the  
appliance and the cabinet.  
Never use the appliance to warm  
or heat the room. Due to the high  
temperatures radiated objects left near  
the appliance could catch fire.  
This equipment has not been  
designed for maritime use or for  
use in mobile installations such as  
aircraft or recreational vehicles.  
However, under certain circumstances  
it may be possible for an installation in  
these applications. Please contact the  
nearest Miele Dealer or the Miele  
Technical Service Department with  
specific requirements.  
4
IMPORTANT SAFETY INSTRUCTIONS  
Protection from damage  
Any spills should be removed as  
quickly as possible to prevent them  
from burning on and becoming difficult  
to remove.  
Do not drop anything on the  
ceramic surface of the cooktop.  
Although the ceramic glass is shock  
and scratch resistant, it is not shock or  
scratch proof.  
Do not use a steam cleaner to  
clean the appliance. Steam could  
penetrate electrical components and  
cause a short circuit.  
Do not use pots or pans with  
pronounced edges or ridges on  
the ceramic cooktop. These could  
scratch the cooktop permanently. See  
"Selecting Cookware" for more  
Never place hot pots or pans over  
the display, as the underlying  
electronics may be damaged.  
information. Grains of salt and sand can  
also scratch.Make sure that the bases  
of any pots and pans are clean, free of  
any fat or oils and are dry.  
Do not allow either solid or liquid  
sugar, pieces of plastic or  
aluminium foil to fall on the burners  
when they are hot. If these residues are  
allowed to cool on the ceramic surface  
pitting or even cracking could occur.  
5
IMPORTANT SAFETY INSTRUCTIONS  
Injury prevention  
Pot and pan handles should be  
turned inward and not extend over  
the countertop to reduce the risk of  
burns, ignition of flammable materials,  
and spills.  
Do not touch the cooktop or the  
area surrounding it during or  
immediately after use. The cooktop may  
be hot even though it is dark in color.  
Areas near it may become hot enough  
to cause burns. Do not touch, or let  
clothing or other flammable materials  
touch the cooktop or areas near it until  
they have cooled.  
Use the proper pan size.  
Select cookware having flat  
bottoms large enough to cover the  
heating element. Using undersized  
cookware will expose a portion of the  
Wait until the residual heat indicators go heating element to direct contact and  
out.  
may result in ignition of clothing or  
handles becoming hot. The proper size  
pot or pan will also improve effeciency.  
CAUTION: Do not store toys or  
items of interest to children in  
cabinets above or behind the  
appliance. Children climbing onto the  
cooktop to reach these items may be  
injured.  
Before using glass, glass/ceramic,  
ceramic, earthenware or other  
glazed cookware on the cooktop, verify  
that they can be used on a cooking  
surface.  
Children should not be left alone or  
unattended near the appliance  
when in use. They should never be  
allowed to sit or stand on any part of  
the appliance.  
Do not heat unopened food  
containers. Build-up pressure may  
cause the container to burst and result  
in injury.  
Protect your hands with insulated  
gloves or potholders when using  
the appliance. Use only dry, heat  
resistant potholders. Moist or damp  
potholders used on hot surfaces can  
result in steam burns. Do not let the  
potholder touch the hot heating  
element. Do not use towels or other  
bulky items near the appliance.  
At higher settings, be cautious of  
splattering grease or boiling over  
liquids, which may produce smoke.  
To prevent burns and breathing  
difficulty, allow the cooktop to cool  
before cleaning. Some cleaners may  
produce toxic fumes if applied to a hot  
surface.  
Keep all pans out of reach of  
children. Danger of burns  
6
IMPORTANT SAFETY INSTRUCTIONS  
Before removing pots and pans, be  
sure to turn off the burners.  
Do not let cooking grease or other  
flammable materials accumulate  
on the appliance.  
Do not store items on the  
appliance when not in use. Items  
could melt or catch fire from residual  
heat or if the cooktop is turned on  
inadvertently.  
Be aware of loose fitting or hanging  
garments when operating the  
cooktop, they may present a fire  
hazard.  
Never cover the cooktop with a  
cloth. A fire could result.  
Flammable materials should not be  
stored on or near your appliance.  
Never leave the cooktop  
unattended when cooking with oil  
or fat. Overheated fat could ignite.  
If there is a drawer directly  
underneath the appliance without  
any wooden base in between, ensure  
Always heat oil slowly, monitoring it as it that no aerosols, combustible liquids or  
heats.  
other easily flammable materials are  
kept in it. If cutlery inserts are to be  
placed in the drawer, they must be  
made of heat-resistant material.  
Do not use water on grease fires.  
Smother any fire or flame, or use a  
dry chemical or foam-type extinguisher.  
When frying food, make sure that  
the food is as dry as possible  
before placing it in the oil. Moisture can  
cause hot oil to splatter and boil over.  
Do not flambé under an exhaust  
hood. Flames could be drawn up  
into the hood by the suction or the  
grease filters may ignite.  
7
IMPORTANT SAFETY INSTRUCTIONS  
Appliance safety  
Further safety notes  
In the event of any damage to the  
appliance, it must be turned off  
Make certain that the power cords  
of small appliances do not come in  
immediately and disconnected from the contact with the cooktop. Danger of  
electricity supply by either shutting off  
the power main or manually "tripping"  
the circuit breaker. Contact Technical  
Service.  
Do not use the appliance until it has  
been repaired. Ensure power is not  
supplied to the appliance until repair  
work is completed.  
electric shock!  
Always make sure food is cooked  
thoroughly before eating.  
Only use cookware suitable for the  
range-top. Unsuitable cookware  
may break due to sudden temperature  
changes.  
Do not cook on a broken cooktop.  
Any breakages or cracks in the  
ceramic surface of the appliance are  
defects and must be treated as such. If  
the cooktop should break, cleaning  
solutions and spills may penetrate the  
broken cooktop and create a risk of  
electric shock.  
Do not use plastic or aluminium  
containers. They will melt at high  
temperatures. Fire hazard!  
Do not allow children to operate or  
play with or near the cooktop.  
If a pet hops onto the cooktop, a  
touch control sensor could be  
activated turning on a burner. Keep  
pets away from the cooktop at all times  
and activate the child safety lock.  
Do not use the appliance until it has  
been repaired.  
Repairs should only be performed  
by qualified technicians to ensure  
safety. Repairs and other work by  
unqualified persons could be  
Before discarding an old  
appliance, remove the power cord  
to prevent hazards.  
dangerous. Under no circumstances  
open the outer casing of the appliance. SAVE THESE INSTRUCTIONS AND  
REVIEW THEM PERIODICALLY  
While the appliance is under  
warranty repairs should only be  
performed by an authorized service  
technician. Otherwise the warranty is  
void.  
8
Help protect our environment  
Disposal of packing materials  
Disposal of an old appliance  
The cardboard box and packing  
materials are biodegradable and  
recyclable. Please recycle.  
Old appliances contain materials that  
can be recycled. Please contact your  
local recycling authority about the  
possibility of recycling these materials.  
Before discarding an old appliance,  
disconnect it from the gas and  
electrical supply and cut off the  
power cord to prevent it from  
becoming a hazard.  
9
 
Guide to the cooktop  
KM 421  
abcd Single burners  
Control knobs for burners  
erear left  
frear right  
gfront left  
hfront right  
iArea with 4 operating-/ residual heat indicator lights  
KM 421  
rear left  
a
rear right  
b
front left  
c
front right  
d
diameter  
inches  
(cm)  
5 3/4"  
(14.5)  
7"  
(18)  
7"  
(18)  
5 3/4"  
(14.5)  
Watts  
1200  
1800  
1800  
1200  
10  
 
Guide to the cooktop  
KM 424  
aSingle burner  
bExtended burner  
cd Variable burner  
eIndicator light shows variable burner or extended burner is activated  
fControl knobs (position corresponding with the burner)  
gArea with 4 operating-/ residual heat indicator lights  
KM 424  
rear left  
a
rear right  
b
front right  
c
front left  
d
diameter  
inches (cm)  
5 3/4"  
(14.5)  
6 3/4"  
(17)  
4 3/4"  
(12)  
5 3/4"  
(14.5)  
1
extended  
6 3/4" x 10 /2"  
7"  
(18)  
8 1/4"  
(21)  
(17 x 26.5)  
Watts  
1200  
1500  
700  
1100  
2400  
extended  
2400  
1800  
11  
 
Guide to the cooktop  
KM 427  
ac Single burners  
bExtended burner  
de Variable burners  
fIndicator light shows variable burner or extended burner is activated  
gArea with 5 operating-/ residual heat indicator lights  
hControl knobs (position corresponding with the burner)  
KM 427  
rear left rear middle  
rear right  
c
front right  
d
front left  
e
a
b
diameter  
inches (cm) (14.5)  
5 3/4"  
6 3/4"  
(17)  
5 3/4"  
(14.5)  
4 3/4"  
(12)  
5 3/4"  
(14.5)  
extended  
6 3/4" x 10 1/2"  
(17 x 26.5)  
7"  
(18)  
9"  
(23)  
Watts  
1200  
1500  
2500  
1200  
700  
1100  
2500  
extended  
1800  
12  
 
Before using for the first time  
Clean the cooktop  
Before using for the first time, clean the  
cooktop with a damp cloth and then dry  
with a soft cloth.  
Heat the cooktop  
The metal components of the cooktop  
have a protective coating which may  
give off a slight odor the first time the  
appliance is heated.  
The smell will dissipate after a short  
time and does not indicate a faulty  
connection or appliance defect.  
13  
 
Use  
Turning on and off  
Operating a single burner  
A burner without the symbol n next to  
the control knob is turned on by  
pushing the control knob down and  
turning it clockwise or  
counter-clockwise to the desired  
setting.  
Operating a variable / extended  
burner  
If a burner has the symbol n next to  
the control knob, you can switch on an  
additional outer or extended heating  
circle.  
To adjust the setting, turn the knob  
without pressing down.  
To turn on a burner push down and turn  
the control knob:  
The burner is turned off by turning the  
control knob clockwise or  
– clockwise to the desired setting turn  
counter-clockwise to "0".  
on one heating circle,  
– counter-clockwise to the desired  
setting to turn on both heating  
circles.  
Operating / Residual heat  
indicator  
When a burner is turned on the  
corresponding operating / residual heat  
indicator will light up.  
If both heating circles are turned on an  
indicator light will come on left of the  
control knob.  
To adjust the setting, turn the knob  
without pressing down.  
Do not touch or lay any heat  
sensitive objects on the cooktop  
while the operating / residual heat  
indicator is still on.  
The burner is turned off by turning the  
control knob clockwise or  
counter-clockwise to "0".  
Danger of burns and fire hazard!  
14  
 
Use  
Settings  
The range of settings is the same for all burners:  
Settings  
1 - 2  
Melting butter, chocolate etc.  
Dissolving gelatin  
1 - 3  
3 - 5  
Thickening sauces containing egg yolk and butter  
Warming small quantities of food/liquid  
Warming sticky foods  
Cooking rice  
Warming liquid and half-set foods  
Thickening sauces, e.g. Hollandaise  
Cooking rice pudding  
Preparing omelettes, lightly fried eggs  
Steaming fruit  
4 - 6  
Defrosting deep frozen food  
Steaming vegetables, fish  
Cooking dumplings, potatoes, soups  
Cooking broths  
7
Boiling and continued cooking of large  
quantities of food  
8 - 9  
Gentle braising (without overheating the fat) of meat, fish,  
vegetables, fried eggs etc.  
9 - 11  
11 - 12  
n
Frying pancakes etc.  
Boiling large quantities of water  
Symbol for variable burner or extended burner  
These settings are only intended as a guide. With deep pans, large quantities or  
without the lid on, a higher setting is needed. With smaller quantities select a lower  
setting.  
15  
 
Use  
Overheating protection  
Each burner is equipped with a  
temperature limiter. This limiter turns off  
the heating elements in the burner  
before the ceramic surface becomes  
too hot. Once the ceramic surface has  
cooled to a safe temperature, the  
heating elements will automatically turn  
back on.  
The overheating protection can be  
activated by:  
– turning on a burner without putting a  
pan on it.  
– heating an empty pan.  
– an uneven pan not sitting evenly on  
the burner.  
– the pan not conducting heat  
properly.  
If the heating elements cycle on and  
off, even at the highest setting, the  
overheating protection has been  
activated.  
16  
 
Selecting cookware  
The cooking surface  
Pots and pans  
Your ceramic cooktop is made of an  
extremely hard and durable material.  
The surface is scratch resistant, not  
scratch proof. Avoid using cookware  
with ridged bottoms. Ridged pots with  
dirty or chipped enamel bottoms may  
scratch the cooktop if they are pulled  
across the ceramic surface.  
Special cookware is not required, but  
as is true with all types of cooking  
appliances, the better the cookware,  
the better the performance.  
Following these tips will allow you to  
make the most of your ceramic  
cooktop.  
Make sure the cooktop and pot bottoms  
are clean before cooking. Certain  
items, particularly sugar grains or  
crystallized liquids such as molasses or  
syrups are actually harder than ceramic  
and can scratch the surface if they are  
not cleaned off immediately. Small or  
light scratches will not affect the safety  
or performance of the cooktop however.  
– For the most even and energy  
efficient cooking, the diameter of the  
pots should match the diameter of  
the burners as closely as possible.  
The burner rings are fused into the  
ceramic glass and are resistant to wear  
if properly maintained. Do not use  
abrasive cleaners or pads, as they may  
eventually wear off the rings.  
– Use cookware with thick, flat, smooth  
bottoms. Slightly concave bottoms  
will also work adequately. Pans with  
convex bottoms will not cook well.  
17  
 
Selecting cookware  
– Using a lid while cooking will  
minimize the loss of heat and  
decrease the cooking time.  
– Copper bottom and aluminum pans  
may leave a residue on the cooktop  
in the form of metallic lines. This is  
normal. These lines can be removed  
using a non-abrasive ceramic  
cooktop cleaner or a sheilded  
scraper blade.  
Be sure to clean the cooktop after  
each use. Each time the residue is  
allowed to melt it becomes harder to  
remove and may mar the  
appearance of the cooktop.  
Let the cooktop cool before  
cleaning.  
– Cast iron, glass or stoneware should  
not be used because they have poor  
heat transfer and may scratch the  
surface.  
18  
Cooktop care  
The ceramic surface should be cleaned  
regularly with a cleaner for ceramic  
surfaces. Follow the ceramic cleaner  
manufacturer’s instructions. If you have  
difficulty locating a suitable product  
contact Miele’s Technical Service  
Department.  
When cleaning the cooktop, make sure  
the cooktop is "Off", and be careful not  
to accidentally turn it "On".  
Under no circumstances should a  
steam cleaner be used to clean this  
appliance. Pressurized steam could  
cause permanent damage to the  
surface and to components for which  
the manufacturer cannot accept  
responsibility.  
Before cleaning allow the cooktop to  
cool. Wipe spills off using a damp  
sponge. Stubborn spills are best  
removed with a shielded scraper blade.  
To remove any limescale deposits or  
metallic residue apply ceramic cleanser  
using a soft cloth or use a sheilded  
scraper blade if necessary.  
Do not use any sharp pointed objects  
which could damage the seal between  
the ceramic surface, the surrounding  
frame and the countertop.  
A cleaner with a special additive to  
prevent water marks and smears on the  
ceramic surface may be used.  
Never use scouring agents, pads,  
abrasive cleaning agents or strong  
cleaners, e.g. oven sprays, stain or  
rust removers, as these could  
After cleaning, wipe the ceramic  
surface with a damp cloth to remove  
any residue. Cleaner residues could  
damage the cooktop or create toxic  
fumes when heated. Finally, dry the  
cooktop with a clean soft cloth.  
damage the surface of the appliance.  
The ceramic surface can be cleaned  
using a cleaner for ceramic  
surfaces. Follow the manufacturer’s  
instructions on the packaging.  
Any melted solids (e.g. sugar, plastic,  
syrup, aluminium foil, etc.) should be  
removed as quickly as possible and  
while the burner is still warm. If they are  
allowed to harden, the cooktop may  
become pitted. Scrape the melted item  
off the cooktop using a sheilded  
scraper blade. Once the cooktop has  
cooled, remove any remaining residue  
using a ceramic cooktop cleaner.  
Make sure that no cleaner residue  
remains on the ceramic surface by  
carefully wiping the cooktop with a  
damp cloth. Cleaner residues could  
damage the cooktop when heated.  
After cleaning, thoroughly dry the  
ceramic surface with a soft cloth to  
prevent a build up of limescale  
deposits.  
19  
 
Frequently asked questions  
... the heating cycles on and off at the  
highest setting on one of the  
burners?  
All repairs should be performed by a  
trained technician in strict  
accordance with national and local  
codes. Any repairs or maintenance  
performed by unqualified personnel  
could be dangerous.  
The overheating protection is activated  
(see "Overheating protection").  
What if ...  
... the cooktop or burners cannot be  
turned on?  
Check whether the electrical circuit has  
blown a fuse or "tripped" the circuit  
breaker.  
If this is not the case, disconnect the  
appliance from the electricity supply for  
1 minute by "tripping" the circuit  
breaker, or withdrawing the fuse.  
Reconnect the appliance to the  
electrical supply and if the cooktop still  
does not heat up, contact a qualified  
electrician or Miele’s Technical Service  
Department.  
20  
 
Technical Service  
In the event of a fault which you cannot easily fix yourself, please contact the  
Miele Technical Service Department.  
U 1-800-999-1360  
[email protected]  
V 1-800-565-6435  
[email protected]  
When contacting Technical Service please quote the serial number and model of  
the cooktop. This information is visible on the silver data plate supplied with the  
cooktop.  
Adhere data plate sticker here  
21  
 
22  
23  
Alterations rights reserved / 2104  
M.-Nr. 05 647 560 / 03  
This paper consists of cellulose which has been bleached without the use of chlorine.  

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