Good night, they brought me a whirlpool refrigerator mod: wri41 that the frizer reached - 9 degrees below zero and I suspect it may be sensors, it has two one in frizer at the bottom and another one in the refrigerator. Walk two hours and start to sound alarm and first green light of the flashing board. If I unplug it and plug it back in after two hours, the alarm starts to sound. Someone can tell me what the sensors are and if they have a better service manual. Greetings and thank you in advance.

At 2.7 kohms at 25 ° c if you do not mark that value do not hesitate to change the bad one, but you should change the complete kit.