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Have a Kenmore Elite  795.74015.411 repair guy came replaced ice maker, fan motor, defrost sensor, control board, door switch said it was all working    this was yesterday     and waited 3 weeks for parts re set the temp on freezer to 1   fridge to 34   looked ok now today  still no cooling and the RF error code is  now on.  But the fan and control board were replaced ??    he just came and said now it must need Freon is that  even possible, that with all new parts replaced    any ideas besides find a new repairman as to what else could be wrong  ??? luckily this was all done under a home warranty, so I have only paid $75 but about $200 in ice over the last 3 weeks any help is appreciated chris

Check the Freon, maybe it is just out of Freon and you need to add, if your refrigerator uses this and if it is legal to use in your country. Cheers.