Sharp KS-COM18 Service Manual
SHARP CORPORATION
SHARP SERVICE MANUAL
TABLE OF CONTENTS
PARTS IDENTIFICATION .............................................................................................................
SPECIFIC INFORMATION ...........................................................................................................
PART SPECIFICATION ................................................................................................................
IMPORTANT SAFEGUARDS .......................................................................................................
PRECAUTIONS ............................................................................................................................
CAUTIONS FOR USE ..................................................................................................................
WIRING DIAGRAM AND CIRCUIT DIAGRAM .............................................................................
EXPLANATION OF CIRCUIT .......................................................................................................
REPLACING METHOD FOR MAIN PARTS .................................................................................
COOKING/WARMING TEST METHOD ........................................................................................
TEST MODE SPECIFICATION .....................................................................................................
BEFORE CALLING FOR SERVICE .............................................................................................
SERVICING ..................................................................................................................................
POST-REPAIR INSPECTION .......................................................................................................
TROUBLESHOOTING GUIDE .....................................................................................................
SERVICE PARTS LIST .................................................................................................................
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3
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5 - 7
8 - 10
11
12 - 16
17 - 18
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22 - 24
25 - 27
Page
ELECTRONIC JAR RICE
COOKER/WARMER
MODEL KS-COM18
In the interests of user-safety (Required by safety
regulations in some countries) the set should be restore
to its original condition and only parts identical to those
specied should be used.
Body
Key sheet
Latch button
Inner pot
Steamer rack
2
Steam vent hole
Inner lid
Lid
Inner pot handle
Handle
Panel ring
OPERATION BOARD
Display
Slow cook button
Timer button
Plain rice button
Porridge/Congee button
Mixed rice button
Cake/Bread button
Glutinous rice button
Warm lamp indicator
Warm/Off button
Cooking Time button
Power cord
Lid
Lid cap
PARTS IDENTIFICATION
Approximately one watt of power is consumed even when the rice cooker is in OFF mode as long as it is
plugged in. To conserve, unplug when not in use.
During warming the power in the parentheses is the average power at a room temperature of 20oC.
Model
A.C. Line Voltage (V/Hz)
Power consumption
Rice cooking (W)
Warming maximum (W)
Warming (average) (W)
Timer
Type
Setting range
Display
Capacity (l)
Cooking method
Outside dimensions
(mm.)
KS-COM18
220 / 50 A.C. only
830
118
40
Present time to nish
1 to 24 hours
Process display of clock/cooking/warming
0.36 - 1.8
Direct heating type
Width
Depth
Weight of product (approx.) kg
Height
296
408
242
4.1
Safety device
Temperature fuse; 169oC
Cooking Chart
Cooking time may varying, depend on the kind or volume of rice or ingredients.
Cooking time is set at specied voltage, room temperature 20-25oC, water temperature 20-25oC and
under standard water level.
No need to soak the GLUTINOUS RICE before cooking.
For cooking Kiaw Ngu Glutinous Rice should be reduced a little water.
Use the broken for cooking Congee, it will became better result.
3
MODEL
PROGRAM
KS-COM18
Volume of rice
(cup)
Time (approx.)
(hr : min)
PLAIN RICE
BROWN RICE
GLUTINOUS RICE
CONGEE
PORRIDGE
SLOW COOK
CAKE / BREAD
2 - 10
0:28 - 0:41
2 - 7
0:57 - 1:57
2 - 6
0:55 - 1:03
0.5 - 2.5
0:49 - 1:04
0.5 - 1.5
0:55 - 1:02
Depending on the water quantity / seasonings /
ingredients for cooking.
SPECIFIC INFORMATION
PART SPECIFICATION
4
Name of part
Cord reel ass’y
Heater plate ass’y
Side heater ass’y
PCB ass’y
Lid heater ass’y
Part specication
Inner lid frame ass’y
Thermistor plate ass’y
Part No.
Cord length 1.03 m.
22N405ASY
220V 830W (rating wattage)
22N402
Thermistor type (with connector)
Temperature fuse (169oC 10A)
22N403ASY
Power 77W
Resistance 484 Ω 5%
Resistance wire spec. 547.2 Ω/m
220V
22J3031ASY
22N401
+
-
Power 30W
Resistance 1613.3 Ω 5 %
Resistance wire spec. 1210 Ω/m
22J33112
Power 30W
Resistance 1613.3 Ω 5 %
Resistance wire spec. 1210 Ω/m
22A109TASY
+
-
+
-
When using electrical appliances, basic safety precautions should always be followed, including the following.
1. Read all instructions.
2. Do not touch hot surfaces. Use handles or knobs.
3. Keep the rice cooker out of the children’s reach, especially when cooking rice.
4. Unplug from wall outlet when not in use and before cleaning. Allow to cool before putting on or taking off
parts.
5. Do not operate the appliance with a damaged cord or plug or after the appliance malfunctions or has been
damaged in any manner.
6. Use of accessory attachments no recommended by SHARP may cause injuries.
7. Do not use outdoors.
8. Extreme caution must be used when moving an appliance containing hot food, water or other hot liquids.
9. Do not use the appliance for other than intended use.
10. Always unplug and let the rice cooker cool down before cleaning.
11. Do not let cord hang over edge of table or counter or touch hot surfaces.
IMPORTANT SAFEGUARDS
1. Be sure to remove the sheet of protective paper located between the inner pot and heater plate
before using the rice cooking.
2. Avoid using the rice cooker, if the power supply cord becomes hot. Should this happen, have a qualied
electrician check the rice cooker.
3. Use on a at, stable surface.
4. Use the inner pot only in the rice cooker; never on the range top or in the microwave oven.
5. Do not turn the rice cooker on without both rice and water in the inner pot. Avoid using the rice cooker to
heat just water.
PRECAUTIONS
5
1. Place of use
Do not use the cooker on a wet oor, under direct sunlight or near the gas table.
Do not use the rice cooker within 1 m of TV or radio to prevent the interference.
While cooking, do not put the rice cooker on or near combustible materials such as curtains or vinyl
carpets.
2. How to handle before use
Do not disassemble or repair the cooker by yourself. It may cause trouble such as a re or electric
shock. Consult your nearest dealer.
The electrical requirements are a 220V 50Hz, a.c. only protected electrical supply.
It is recommended that a separate circuit serving only this appliance be provided.
To protect against electrical shock, do not immerse the set in water or sprinkling water on the heater plate.
Do not allow children to operate.
Move the rice cooker by handle only.
Never carry it by using of the inner pot holders projecting on both sides of the closed cooker.
Use the plastic spoon provided as accessory.
For porridge use a plastic or wooden deep plastic spoon available on the market.
Never share an electric wall outlet with other appliances.
Never connect the plug with your wet hand as it may be dangerous from electric leakage.
Disconnect the plug from the wall outlet when you do not use the rice cooker.
In case the power cord is broken, it must be replaced by manufacturer or appointed service providers
or equivalent professionals to avoid any damages.
In case the power cord is broken, it must be replaced by manufacture or appointed service providers or
equivalent professionals to avoid any damages.
CAUTIONS FOR USE
6
3. How to use it
(1) Before cooking
Do not use the inner pot for washing rice.
Wash rice quickly and thoroughly.
Insufcient washing will cause scorching and odor.
Use clean, clear water.
Do not use any other inner pot except the provided one.
Insert the plug into wall outlet rmly and when disconnecting, hold the plug and pull it out without
touching the power cord.
Do not use the inner pot with other heating appliances such as a gas table. The pot may be
transformed and it may cause poor cooking result.
Do not use the damaged inner pot. It may cause in malfunction.
The water level marking is a standard guide and may be adjusted slightly depending on the kind of
rice or your liking. Remember that adding too much water may cause boiling over.
Carefully align marks when replacing the lid cap on the lid.
Foreign matter adhered to the outside of the inner pot, heater plate and thermistor plate must be
washed off before use. If not, it may cause inadequate cooking or a damage of the rice cooker.
Rice with ingredients containing seasonings should not be cooked by using delay start setting.
Because the settling or decay of the seasoning is likely to cause inadequate cooking.
Hints for determining the amounts of ingredients and seasonings :
The amounts of rice and seasonings that can be cooked vary depending on the menu.
A standard for the amount of ingredients is 30-50 % of the mass of rice to be cooked, but follow
the amounts given in the recipe pages of the operation manual.
After measuring the amounts of rice, seasonings and ingredients adjust the water level and stir
well with a plastic spoon. If the seasonings are settled, it is possible to result inadequate cooking.
Cut the ingredients rather ne, put them on the rice and not mix with rice.
Stirring may result in unsatisfactory cooking.
(2) Cooking rice
During cooking rice clicking sound is heard but this is due to ON-OFF action of the relay and quite
normal.
During the cooking of the rice, a zzing sound may be heard, This is due to the remaining water on
the outside of the inner pot and is not a problem.
Do not opening the lid when during boiling because touched hot steam.
During or immediately after cooking, the areas near the steam vent hole are kept at high temperature.
Do not touch those areas to avoid burns.
Do not place a wiping cloth or the like on the lid or the handle during use.
It may cause the damage to the operation board and the deformation and/or discoloration of the lid.
Stir rice well using the plastic spoon provided within 30 minutes after cooking.
It will allow escape of the excessive steam and uffy appearance of the cooked rice will result.
Immediately after cooking some sticky lm may be formed in the surface of the cooked rice with the
central portion sunken but this means no problem. This is phenomenon called spherical cooking.
In the following cases heavy scorch may occur.
When rice washing is insufcient.
When the rice is soaked in water for a long time.
When rice other than plain rice is cooked with seasoning (especially sake, sugar, ketchup,
tomato-puree and etc.).
7
(3) Warming
Because to keep the lid closed even at meals.
Use for 12 hours or less for best results.
Avoid using for a small amount of rice.
Use for keeping warm rice warm, the setting is not intended to be used for refrigerated or room
temperature rice.
Use for keeping plain rice warm.
Do not keep rice warm with any utensil, such as the plastic spoon, in the rice.
(4) After use
Press the “WARM/OFF” button, then remove plug from wall outlet.
After use wash the inner pot and the lid cap as soon as possible.
Otherwise, corrosion and bad smelling may possibly be caused.
If the customer used the correct method for cooking the rice and there is a bad odor, the problem may
be caused from bacteria. If this is the case the unit should be sterilized and disinfected by performing the
following.
The inner pot and the lid cap is thoroughly washed and immerse in hot water for 30-60 min.
And then wipe off water thoroughly with dry cloth and disinfect by sunlight sufciently.
Be careful to plastic parts because they are easy to deform by heat.
Wipe the inside lid, inside body heater plate and thermistor plate using a slightly damp detergent
cloth.
And then disinfect; by sunlight for a couple of hours. Never wash the cooker or the lid with water.
8
WIRING DIAGRAM
CIRCUIT DIAGRAM
9
SCHEMATIC DIAGRAM
Faston tab terminal
Faston receptacle terminal
Connector (Housing side)
Connector (Post side)
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