Hello ... install a new thermostat with refrigerator columbia Mod. Ranco k59 2658, change it because the original did not start the engine directly, which works perfectly. The new thermostat installed does not cut the engine, the temperatures inside are fine. It has been working for three hours and choose to stop it. My question is: if it is possible that this new thermostat is faulty or should it be regulated? I already checked everything, thanks

Hi friend, because you didn't place the original, I don't know what model we are talking about.