My Kenmore side by side is 7-9 yrs. old…the last several months i’ve had problem with frozen milk,water,veggies,etc.I had Sears tech out…said need new control board. I put in new board and still having same problem. The freezer section is consistently 20-28 below ,while refrigerator varies from 22-30 degrees.(I’ve cleaned coils every 6-8 months).Next i installed new thermistor #2188819…nothing changed.Now i block diffuser assembly with 3 inch wide tape…this will allow refrigeratoe side to remain between 30-40 degrees.I thought of changing out diffuser but i cant see how that will help problem of -28 degrees in freezer.Your thoughts please!!!
I would suspect open wires from the thermistor to the microcomputer. If you have an ohmmeter you can check. Just check at the microcomputer, the wires are usually white.
See the attachment for the tech sheet.
It may be useful to you.
54389300.pdf (768.7 KB)