Kolin AC F2 Error Code, What does this mean?

So when i open the airconditioning unit, the compressor won't start and it keeps making weird noises when its trying to.
The model of the AC is: KAG-210RS

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Update: We had this AC checked. Suprisingly, the technician said that its the temperature sensor that was faulty. Now, This AC is up and running.

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Como programar el aire artic king de 10:000 btu

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(F2) Fan 2wo