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Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board?

lolobo 7713 5
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 17315757
    lolobo
    Level 9  
    Blender stopped working. The last time my wife used it, it made some short-circuit noises.
    After plugging it in and trying to turn it on, it makes no noise and doesn`t smell.
    I took the board out, but there are no elements that would indicate burning.
    Can I somehow check the engine to see if it`s working and if it`s not the problem? Perhaps it is worth checking one of the elements on the board?
    Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board? Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board? Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board?
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  • #2 17316004
    Arekadiuszby
    Level 12  
    First connect the engine to a 12v battery, then 24v (or connect a pair of 12v https://www.gimmik.net/blog/rownolegle-i-szeregowe-laczenie-akumulatorow-rc/ ), it should start. And the circuits on the board can only be measured with a meter and check whether there is resistance. You can try to search https://www.google.pl/search?client=opera&q=j...+silnik+230v&sourceid=opera&ie=UTF-8&oe=UTF-8, but I would be afraid to connect something live to the socket
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  • #3 17316425
    antek124
    Level 32  
    And is T1 operational? Can`t check the voltage on the motor, is the motor powered? What about the capacitor in the third photo near the finger, is it functional? I can`t see the connection of the paths because it covers the cable.
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  • #4 17325885
    lolobo
    Level 9  
    Yes, it`s probably the t1 that`s causing problems. When I connected it for the second time, it made disturbing sounds and blinked (or it shouldn`t have).
    I cannot identify this element, I think it is a 120C thermal fuse, but what amperage is a mystery to me.
    The markings on the element are: Obverse: Limitor 13 T160 Reverse: Y51 H 120C B06 39461
    I found a similar one on ebay in the states, but the transport costs together with the element exceeded the value of the repaired device ;-)

    What is this element and where can you buy it for a reasonable price?
    Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board?
    Bosch MSM7700GB/02 Blender No Power - How to Test Motor and Circuit Board?
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  • Helpful post
    #5 17327137
    antek124
    Level 32  
    Buy a 5A thermal fuse for 120 degrees.
  • #6 17388231
    lolobo
    Level 9  
    I installed a new 5A/120°C thermal fuse.
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