6-2 Samsung Electronics
Parts Cause Diagnosis Remedy
1) Too small If a small amount of food is heated for a long time, To increase the oven
a load period of microwave may turn off during operation. load, add a glass of
Microwave water into the oven.
turns off
during cook- 2) Defective Check to see if the magnetron thermal cutout switch is Replace thermal cutout
ing cycle. magnetron activated at a temperature higher than 150˚C. switch.
thermal
cutout S/W
Electric Incomplete Make sure that grounding of the power supply cord has Rewire.
shock is grounding been done properly.
felt.
Door does 1) Broken door Remove the cabinet for inspection. Replace door hinges.
not operate hinges Check the door hinge.
properly
2) Missing or Check if the screws are secured well to the door hinge. Fasten or tighten.
loose screw
1) Defective If the timer does not operate with 230V applied to the Replace timer.
Timer does timer motor terminals, the timer motor amy be faulty.
not operate.
2) Defective The lamp does not light. Replace timer
contacts
of timer S/W
Cooking tray Defective Check to see if 21V exists at the motor terminals. Replace drive motor.
does not rotate drive motor If so, motor will be defective.
Magnetron 1) Blocking of Check if the air inlet or outlet ventilation is blocked Keep a distance of
thermal the ventilation by the wall or other objects. 100mm from the
cutout wall or the objects.
switch
OFF 2) Defective If the fan motor does not operate with 230V applied Replace fan motor.
fan motor to the terminal, the motor may be faulty.
3) Too small a If a small amount of food is heated repeatedly over To increase the oven
load or no a long period of time, microwave turns off during load, place a glass of
load operation. water into the oven.
6-1 Electrical Malfunction (Continved)
Troubleshooting
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