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B.TROUBLESHOOTING
CONDITION TROUBLE CHECK RESULT REMENDY
C.ERROR INDICATION
The Display will show an error indication for self-diagonosis as follows.
“E” means that a service technician is required.
“U” means that user can correct the operation.
(Remark: The perpose of This error function will be cancelled
this function is to avoid acc- when the door is opened and closed.
idental operation while the
user is not attempting to
operate the oven).
Low microwave Magnetron Poor oscillation Replace
output
Uneven heating Rotation of Gear motor Replace
Antenna does not operate
Display Trouble Other Symptom Solution
E-21 Thermistor (on top of cavity)
senses a temperature of 120° C
or high.
Oven stops heating Check and remove the cause of the
Buzzer continuously beeps. cavity fire or abnormal overheating.
Blower motor will stop This error function will be cancelled
immediately. when the power cord is unplugged.
E-31 Thermistor (on top of cavity or
magnetron) is shorted.
Oven stops heating Check short-circuit of thermistor
Buzzer does not beep. itself or wire insulation of thermistor.
Blower motor will stop This error function will be cancelled
immediately. when the power cord is unplugged.
E-32 Thermistor (on top of cavity or
magnetron) is opened.
Oven stops heating Check open-circuit of thermistor
Buzzer does not beep. itself or wire improper connction of wire
Blower motor is operated. socket of thrmistor.
This error function will be cancelled
when the CLEAR key is touched.
U-10 Thermistor (on magnetron)
senses a temperature of 200° C
or high.
Oven stops heating Check and remove the cause of the
Buzzer continuously beeps. cavity fire or abnormal overheating
Blower motor will stop (such as operation with no food).
immediately. This error function will be cancelled
when the CLEAR key is touched.
U-50 The key for”START” is not
touched within 1 minite after
the door is opened or closed.
Thermistor chart
To Top of Cavity
Themistor connector
To Magnetron
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