Why is my Samsung CM1929 Microwave Oven making a loud buzzing noise?
A loud buzzing noise in your Samsung Microwave Oven can be caused by a loose fan or fan motor, loose screws on the H.V.Transformer, a shorted H.V.Diode, or a loose or missing screw on the Cover-Back. Tighten the screws of the fan motor and H.V.Transformer. Replace the H.V.Diode and tighten the screws of the Cover-Back.
What to do if Samsung CM1929 Microwave Oven does not accept key input?
If your Samsung Microwave Oven isn't accepting key inputs (program), it could be because the key input is not in sequence, there's an open or loose connection of the membrane key pad to the Ass’y PCB, a shorted or open membrane panel, or a defective Ass’y PCB. Refer to the operation procedure. Replace the PCB main.
Why is my Samsung Microwave Oven cooking slowly?
If your Samsung Microwave Oven's output is low, and it takes longer to cook food (with the oven lamp and ventilation working), it could be due to a decrease in power source voltage, an open or loose wiring of the magnetron filament circuit, aging of the magnetron, or defective high voltage components such as the H.V. Transformer, H.V. Capacitor, H.V. Diode, H.V. Fuse Magnetron. Consult an electrician to check the power source voltage. Also, check the high voltage components according to the component test procedure and replace if defective.
Why does my Samsung CM1929 Microwave Oven stop in the middle of cooking?
If your Samsung Microwave Oven stops during cooking, this could be due to the operation of the thermal cutout (Magnetron or Cavity) or a fan motor that isn't rotating. Adjust the door and latch switches and replace the fan motor.
Why isn't the turntable rotating in my Samsung Microwave Oven?
If the drive motor in your Samsung Microwave Oven isn't working and the stirrer isn't rotating, it could be due to an open or loose wiring of the turntable motor, a defective turntable motor, or a defective ass’y stirrer. Check the wire of the drive motor, and replace the drive motor or ass’y stirrer if necessary.
How to fix uneven cooking in Samsung Microwave Oven?
Uneven cooking in your Samsung Microwave Oven can be due to the uneven intensity of microwave radiation. Wrap thinner parts of the food with aluminum foil. Use plastic wrap or cover with a lid. Stir once or twice while cooking foods such as soup, cocoa, or milk.
Why is the turntable motor in my Samsung CM1929 noisy?
Noise from the turntable motor in your Samsung Microwave Oven when it starts may result from the motor itself. Replace the turntable motor.
What does error code E1 mean on a Samsung Microwave Oven?
The 'E1' error code on your Samsung Microwave Oven indicates an improper input power frequency or a defective Ass’y Main P.C.B. Check if the power frequency is 50Hz. Replace the Ass’y Main P.C.B or MICOM.
What to do if my Samsung CM1929 has no display and the fuse is blown?
If your Samsung Microwave Oven has no display and isn't working, and the fuse is blown, the cause might be a shorted lead wire harness, a defective primary latch switch, a defective monitor switch, a shorted H.V.Capacitor, or a shorted H.V.Transformer. Check the adjustment of the primary, interlock monitor, power relay, and door sensing switch.
Why Samsung CM1929 does not accept key input?
If your Samsung Microwave Oven does not accept key inputs for programming (CM1929/1629/1329 models), it could be because the key input is not in sequence, there's an open or loose connection of the membrane keypad to the Ass’y PCB, the membrane panel is shorted or open, or the Ass’y PCB is defective. Refer to the operation procedure and replace the PCB main.
General| Microwave power | 1850 W |
|---|
Safety precautions for servicing to avoid possible exposure to microwave energy.
General safety measures and compliance with Federal Performance Standard 21 CFR.
Warnings and procedures for handling high voltage components and capacitors.
Step-by-step guide for replacing magnetron, motor, and lamp components.
Procedure for safely removing and replacing the high voltage transformer.
Procedure for safely replacing the high voltage capacitor.
Checking continuity and resistance of the high voltage transformer.
Continuity checks to diagnose open filament or shorted magnetron.
Method for measuring magnetron output power using a water temperature rise test.
Steps for measuring microwave leakage using a survey meter.
Common electrical issues, causes, and correction steps for the microwave oven.
Table of error codes, their causes, and corresponding correction procedures.
To Next Page
