good afternoon, I have a problem with a samsung 220 volt split split card, I checked it and the initial problem was that it locked and did not turn on the compressor because the sensors were bad, I was testing it with a variable resistance in the sensor port until it was output on the 2.5 volt plate and threw this voltage with a 6.6k resistor, resistance that is not commercial because the common they are 5k, 10k, or 15K; I placed a 5K sensor, and unlocks the card, I program the control in cool 16 ° C and close the relay after two minutes but when it took it to 30 ° C it never opens the relay, in view of this change the sensor by one of 10k and the same thing happens I program the control in cool 16 ° C and close the relay after two minutes but when it took it to 30 ° C it never opens the relay, I thought the relay was bad, I changed it and it kept the same fault, then I turned off and on the card again, program the control at 30 ° C and wait two minutes and the relay closed it is assumed that being at room temperature I should not close the relec. I thank you for what you can help me solve this fault, and thank you very much in advance.