Good afternoon community of I repair I have a digital fridge that does not cool the bottom and when checking it I found the super hot engine and the ice frizer. Also the card in the frizer there are 2 very small devices I think they are thermostats the one I guess It cuts the motor current and activates the resitenca for defrosting. the latter when testing it marks me continuity even in cold and hot With the other I have my doubts because it opens cold and for moments it closes, it is possible to change both but I want to know if there can be a problem also on the card that produces any of these failures because when I connect the fridge to the source without the thermostat it produces An abnormal squeak or is it due to not having the thermostat? If anyone can give me some information I appreciate it in advance.