24
Samsung Electronics
Troubleshooting
SYMPTOM
CAUSE
CORRECTIONS
Oven lamp goes off
1. Loose lead wire
Tighten lamp lead wire or
or open lamp filament
replace with a new lamp
2. Misadjustment of latch switch
3. Defective latch switch
Microwave output is low;.
1. Decrease in power source voltage.
Consult electrician.
Oven takes longer time
2. Open or loose wiring of magnetron
to cook food.
filament circuit. (Intermittent oscillation)
(No heat while oven
3. Aging of magnetron
lamp and
4. Defective high voltage components
Check high voltage component
ventilation
H.V.Transformer
according to component test procedure
motor.)
H.V.Capacitor
and replace if defective.
H.V.Diode,H.V.Fuse
Magnetron
Oven does not operate and
Defective Ass'y PCB
Replace Ass’y PCB.
return to plugged-in mode.
Loud buzzing noise can
1. Loose fan and ventilation motor
Tighten screws of ventilation motor.
be heard.
2. Loose screws on H.V.Transformer
Tighten screws of H.V.Transformer.
3. Shorted H.V.Diode
Replace H.V.Diode.
4. Loose or missing screws on
Tighten screws of Cover-Back
Cover-Back
Drive motor not
1. Open or loose wiring of drive motor.
Check the wire of drive motor
work. (Assy stirrer
2. Defective drive motor.
Replace drive motor.
does not rotate.)
3. Defective ass’y stirrer
Replace ass’y stirrer.
Oven stops operating
1. Operation of thermal cutout
Adjust door and latch switches.
during cooking.
(Magnetron or Cavity)
2. Ventilation motor does not rotate.
Replace ventilation motor.
Sparks
1. Metallic ware or cooking dishes
Inform the customer of proper use.
touching on the oven wall.
2. Ceramic ware trimmed with gold or
Do not use any type of cookware
silver powder also causes sparks.
with metallic trimming.
Uneven cooking
Uneven intensity of microwave due to
Wrap thinner parts of the food with
its characteristics.
aluminum foil.
Use plastic wrap or cover with a lid.
Stir once or twice while cooking
foods such as soup, cocoa, or milk.
Noise from turntable motor
Noise may result from the motor.
Replace turntable motor.
when it starts to operate.
Oven can program
Defective circuitry of Start function
Check circuitry of Start function
but timer does not
of Main PCB Ass’y.
of Main PCB Ass’y and replace if
start.
defective.
Loose lead wires
Adjust or repair loose wires.
6-1 Electrical Malfunction(continued)
