Help with Samsung Microwave Cooling Fan Wiring Pins

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • jkucukov
    Member
    • Feb 2025
    • 39
    • United States
    #1

    Help with Samsung Microwave Cooling Fan Wiring Pins

    I have a Samsung Microwave I'm looking to harvest some parts from, specifically the 120V AC motor that keeps the Magnetron cool.
    From the image below, we see 3 pins on the AC motor, with AC Voltage tester all 3 leads measure 120 V with the microwave plugged in and fan not running. With the fan running only pins 2 & 3 measure 120 V.
    Click image for larger version Name: 20251124_150828.jpg Views: 17 Size: 1.30 MB ID: 3771912
    What I'm looking to do is wire this motor up on a Air Compressor to keep the motor cool, but I need to know what is the safe way to wire it, (IE wire in pins 2 & 3 with 120 V only to get it to run?)

    Also, as its wired, when the fan operates the flow of air is bottom to top, I was wondering if the direction of the air flow can be reversed by rewiring the motor.

    Thanks in advance!
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    • R_J
      Badcaps Legend
      • Jun 2012
      • 9627
      • Canada
      #2
      The fan motor is also used as a stepdown transformer to provide 21vac for the stirrer and drive motors, the yellow and blue wires likely connect to those motors so 120vac would connect across pins 1 and 3, and between 3 and 2 you will have 21vac. the direction of rotation cannot be changed by reversing the wires.

        Comment

        Previous template Next

        Related Topics

        Collapse
        • Ace Perception
          Samsung R530 Bremen motherboard cooling
          by Ace Perception
          Hi,
          I'm wondering if anybody out there has much knowledge of Samsung Bremen motherboards.
          I've got a Samsung R530 which is about 10 years old, over the last 12 months it developed a worsening problem where when asked to do much work it would shut itself down. I had a good idea this was due to overheating which was confirmed by a temperature monitor programme which showed little balls of fire next to the various internal temperature readings. I could also prevent it shutting down if I placed a huge fan running at full speed in front of its air intake!
          So I went in pursuit of...
          07-21-2020, 03:05 PM
        • juergenb
          Nescafe Aeroccino, still fails with new Motor (red flashes only once)
          by juergenb
          Hi,

          i am asking for some Help.
          I have one of these Nescafe Aeroccino (Milk Frother) things with a bad motor.
          The Motor didn´t start anymore and internet is full of users just swapping the motor for a Mabuchi RF-500TB-12560.
          So i got a few of these from Banggood.

          I swapped the motor and now i have a new fault condition.

          In a working Frother you would press the start button, it will light red and work for a few minutes.
          If you press longer it will light blue and just mixup the milk.

          With the new Motor it just starts...
          03-23-2021, 11:24 AM
        • spleenharvester
          Whirlpool PACF212HP W portable air conditioner, upper fan only turns slowly.
          by spleenharvester
          I just acquired this portable aircon, history unknown. Its behaviour is quite strange:
          • When turned on and placed into cooling mode, the upper fan (cold air out) just spins slowly. The compressor and lower fan do not run.
          • If the device is then placed into heating mode and then back into cooling mode, the lower fan and compressor kick in and start cooling, but the upper fan still only spins slowly.
          • If the device is placed into fan-only mode, the upper fan does not respond to low/medium/high speed toggles - just keeps running slowly.
          • Display and buttons all behave normally aside from the
          ...
          06-27-2025, 07:49 PM
        • sbt123
          charnwood w821 mini wood lathe motor problem
          by sbt123
          hi there,im having a look at repairing a wood lathe for my dad,(charnwood w821)the problem is when turning up the variable speed control,the motor starts to stop and start by itself,if i continue to turn up the speed it will trip the mcb in the consumer unit,there is also a slight smell of burning from the speed controll box.,Another strange symptom is the lathe can be unplugged from the mains after switching it off and the motor will spin a couple of times by itself,so far ive put a new speed controll potentiometer on and new motor brushes,ive also tested the motor windings and everything looks...
          10-27-2024, 03:43 AM
        • d00m178
          Philips toothbrush 4100 (HX369BK) - motor getting hot
          by d00m178
          trying to fix Philips toothbrush 4100 (HX369BK)
          The battery started draining quickly.
          After disassembling it, I discovered that the motor gets very hot when brush is off, which is apparently causing the battery to lose charge.
          The motor is connected to contacts M1 and M2.
          When I turn on the brush, 0.4V appears on these contacts, and the motor starts running as expected.
          But when I turn off the brush, the voltage changes to 3.8V—exactly the same as the battery.
          The motor gets so hot you can't touch it. And after 5 minutes, the battery drains to 0V.
          (To...
          11-12-2025, 03:11 PM
        • Loading...
        • No more items.
        Working...