Hello, I have this refrigerator again in the workshop, again because I had to remove it and bring it to me because of a thaw problem, I changed the sensors and apparently it worked fine when I delivered it, I have been testing it for a week and the temperature well, the only thing that I notice that it performs a single defrost on the day, supposedly the defrosting process is between 7 hours and defrosting 20 minutes.My question is a defrost possible per day?, maybe an ice residue remains and it gets together and in a certain time Is it blocked from ice ?. Thank you