Question about Engel MT-35F-U1 34 Qt Portable Refrigerator & Freezer

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Mt27f-u1 12v not working

The 110 works but 12v doesn't. Opened up elec panal. meter on leads going to comp reads 24v when plugged into 110. Any ideas?

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  • maxtherat Aug 26, 2008

    Finally got circuit boards out and have found a something fried. It is next to where the 12v power cord attaches to the board. On either side are two little black cylinders with a wire connecting them on top. Since I have no schematic I don't know how to identify to possible replace. Any ideas

  • maxtherat Aug 26, 2008

    The device that is burnt is at position L4 on the power source board.


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I think it works on 24V DC. Or 12V step-up circuit is defective.

Posted on Aug 26, 2008

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Did you check the wires of the 12v are intact

Posted on Aug 26, 2008

  • John Smith
    John Smith Aug 26, 2008

    also get a tester and make sure electricity is running through the 12V connectors

    Also have a look at any faulty fuses

  • John Smith
    John Smith Aug 26, 2008

    The black cylinders are called "caps".

    They'll need to be replaced, however it is hard to tell what type they are without examining the actual powerboard.

    I would recommend you take it to a electrician and fixing it wont cost much since uve alreay got the powerboard on hand .. just a little bit of soldering.

    Otherwise, go hunting on ebay for a simular powerboard and replace it

    Hope this helps


    FixYa Team

    Please remember to rate this solution


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Try tracing the wires from the 12 volts plug to the other end of the wires. You might find a broken conductor or a blown fuse in there.

Posted on Aug 26, 2008

  • Jaime Hernandez Aug 26, 2008

    It looks like the schematics are not available for your appliance. L4 is connecting 12V in series to the rest of the circuitry. You can try to connect the 12V directly to L4 and see if that works, high current might have burnt the conductors.


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