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  1. #1
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    Post Samsung AC is not cooling



    Hi,
    I have a Samsung AC model AQ12FANAFR, after an electric sudden cut, it stop cooling when i set the indoor temperature below room temperature, no alarm was showing (no LED blinking). the technician suggests it is a sensor issue, so we borrow the sensor from other similar unit and replace it, then the compressor works well when choosing cooling mode. so the technician purchase a new but non-original sensor and replace it, unfortunately it doesn't work, then i bought the original one from samsung service center but didn't not function properly after installation. However if i use the heating mode, it is OK and when i turn turbo button it starts cooling for 30 min then the compressor go off. in cooling mode the compressor doesn't start at all.
    Please help, does it need a reset or PCB got damaged when he used the wrong sensor?
    Thanks in advance
    Last edited by lebmfk; 27-05-2017 at 10:56 AM.



  2. #2
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    Re: Samsung AC is not cooling

    Quote Originally Posted by lebmfk View Post
    Hi,
    does it need a reset or PCB got damaged when he used the wrong sensor?
    Thanks in advance
    possibly wrong or ordinary sensor led to pcb damage
    as if its sensor issue then heating and turbo also will not work
    Power consists not in being able to strike another but in being able to control oneself when anger arises

  3. #3
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    Angry Re: Samsung AC is not cooling

    Quote Originally Posted by kefah View Post
    possibly wrong or ordinary sensor led to pcb damage
    as if its sensor issue then heating and turbo also will not work
    Thanks Kedah,
    How can i test the PCB, or check if it is damaged?
    I assume that the reset will not work if it is a HW error.
    the issue is that none of the 3 led is blinking to indicate an error.

    what do you suggest?
    Thanks

  4. #4
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    Re: Samsung AC is not cooling

    i think its need programming by Samsung service center
    Power consists not in being able to strike another but in being able to control oneself when anger arises

  5. #5
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    Exclamation Re: Samsung AC is not cooling

    Quote Originally Posted by kefah View Post
    i think its need programming by Samsung service center
    Hi,

    Samsung service center cannot program it, i already reset it using the user manual but no changes.
    there is no alarm indicating any error, is there anything i can do before changing the PCB?

    Thanks
    Lebmfk

  6. #6
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    Re: Samsung AC is not cooling

    i have no more ideas
    Power consists not in being able to strike another but in being able to control oneself when anger arises

  7. #7
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    Re: Samsung AC is not cooling

    Hi LEBMFK,

    My thought is that the 'non-original' sensors are the incorrect specification.

    All the indoor unit sensors are the same characteristic - here's a guide

    0°C = 27.3 k ohms
    10°C = 18.0 k ohms
    20°C = 12.0 k ohms
    30°C = 8.3 k ohms
    40°C = 5.8 k ohms

    I suggest checking these readings against you unit.

    Also if you think your AC needs to be 'reprogrammed' ask your local Samsung office for the product code. We do not have this model in the UK so I cannot help with this.

    Regards

    Loops

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