Sharp KS-COM18 Service Manual page 23

No. Problem
4-3 Cooked rice has burned parts.
Water condensation on inner
5
lid after cooking or when rice
is kept warm.
6-1 Warm function does not
operate.
6-2 Warm function operates, but
rice becomes dry.
("Warm" temperature too high)
Rice is too dry.
Rice turns yellowish.
Rice has a strange smell.
Cause of problem and location of malfunction
Faulty thermistor ass'y.
Faulty operation of thermistor ass'y.
(Thermistor movement not smooth)
Faulty PCB ass'y.
Cooking heater ass'y and/or inner pot not
cleaned thoroughly.
Rice was not washed thoroughly.
Faulty thermistor ass'y.
Faulty PCB ass'y.
Lid is not closed tightly.
Faulty lid heater faulty installation.
Faulty wiring of lid heater.
Faulty harness of lid heater.
Faulty PCB ass'y.
Faulty side heater or faulty installation.
Faulty wiring of side heater.
Faulty harness of side heater.
Faulty thermistor ass'y.
Faulty PCB ass'y.
Lid is not closed tightly.
Lid cap is not installed securely.
Rice is kept warm for more than 12 hours.
Faulty side heater.
Faulty thermistor ass'y.
Faulty PCB ass'y.
23
Remedy
Replace the thermistor
ass'y.
Repair the assembly
or replace the thermistor
ass'y.
Replace the PCB ass'y
Clean properly.
Wash rice thoroughly.
Replace the thermistor
ass'y.
Replace the PCB ass'y.
Repair the lid or close
the lid tightly.
Replace the lid heater.
Repair the wire.
Replace the lid heater.
Replace the PCB ass'y.
Repair the side heater.
Repair the wire.
Replace the side heater.
Replace the thermistor
ass'y.
Replace the PCB ass'y.
Repair the lid or close
the lid tightly.
Install the lid cap
securely.
Do not keep rice warm
for an extended period
of time.
Replace the side heater.
Replace the thermistor
ass'y.
Replace the PCB ass'y.