Samsung CM1929 - Service Manual

Questions and Answers

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hayeshollySep 16, 2025
What to do if my Samsung CM1929 Microwave Oven doesn't operate and returns to plugged in mode?
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  mathewskathleenSep 16, 2025
  If your Samsung Microwave Oven does not operate and returns to the plugged-in mode, it is likely due to a defective Ass’y PCB. Replace the PCB main.
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alexisrobinsonAug 25, 2025
What to do if Samsung CM1929 Microwave Oven does not accept key input?
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  Ronald MoralesAug 25, 2025
  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.
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benjaminbirdAug 25, 2025
Why is my Samsung Microwave Oven cooking slowly?
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  theodoreboothAug 26, 2025
  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.
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masseycarlosAug 26, 2025
Why does my Samsung CM1929 Microwave Oven stop in the middle of cooking?
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  Raymond McdonaldAug 27, 2025
  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.
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Steven JohnsonSep 18, 2025
What does E42 error mean on a Samsung CM1929 Microwave Oven?
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  Lisa GraySep 18, 2025
  If your Samsung Microwave Oven displays error code E42, it could be due to a Power Relay (RY5) failure, loose lead wires of Power Relay (RY5), a Primary or Monitor S/W failure, loose lead wires of Primary or Monitor S/W, a blown fuse (10A) on the neutral area of the Assy Noise Filter, or a H.V.Trans input power sensing circuit failure. Check the Power Relay2, Primary S/W, Monitor S/W or Fuse and replace if defective. Also, check if lead wires are loosened and repair as necessary. Check the circuitry.
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Kathy TurnerSep 23, 2025
What does E1 error mean on a Samsung CM1929?
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  Steven MaySep 23, 2025
  If your Samsung Microwave Oven displays 'E1', it could be due to 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.
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David AdamsSep 8, 2025
Why is the turntable motor in my Samsung CM1929 noisy?
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  Dean MyersSep 8, 2025
  Noise from the turntable motor in your Samsung Microwave Oven when it starts may result from the motor itself. Replace the turntable motor.
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John ChavezSep 9, 2025
What does error code E1 mean on a Samsung Microwave Oven?
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  johnsoncarlosSep 9, 2025
  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.
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Susan PooleSep 3, 2025
What to do if my Samsung CM1929 has no display and the fuse is blown?
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  Martha JohnsonSep 3, 2025
  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.
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Michelle ThompsonAug 31, 2025
Why Samsung CM1929 does not accept key input?
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  Jill WardSep 1, 2025
  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.