[David--GibsonRT14F3]

Dear Appliance Repair People: My refrig often freezes veggies (28 deg F), often is too warm (48 deg F). Freezer varies from OK (0 deg F) to a bit warm (very soft ice cream). Often refrig is OK, but freezer too warm even with it set to max cold (#5). Often have water in bottom of refrig--probably from freezer. I suspected the cooling thermostat & VERY carefully cleaned part of it & that helped the irratic behavior; but now it's out of adjustment. How do I set the "cut in" and "cut out" screw adjustments?. Or, if I simply replace this part, will that fix it, or is it some other temperature controller part? Thanks for your interest. --David