Indesit fridge freezer Ban134NF packed in freezer doesn't freeze and fridge doesn't keep things cold. Loight works though.

SOURCE: Freezer not freezing

Check the back wall of the freezer section for signs of frost build-up. If the freezer coil is frozen from a fault in the defrost system your refrigerator will be the first to show signs of not cooling.

SOURCE: freezer not freezing food and fridge not staying cold enough

Check the compressor with a volt meter, if the compressor is getting proper voltage then check the relay. But this sounds like a problem with the compressor

SOURCE: Freezer not freezing properly, ice on back wall

Ice on the back wall indicates a problem with the defrost cycle. The ice builds up and starts to choke off the air flow, so your symptoms would indicate that may be happening.

Defrost problems are usually any of the three components, the heater element, the defrost termination temp switch, or the defrost timer.

SOURCE: Amana ARB2214CB refrigerator fan not working?

the fan is locted in the freezer and it blows up to the ref and it sounds like the fan quit working and needs replace to check it the be for sure take the back panel off and with the ref running test the leads to the motor and make sure you have 110 volts if you do it is a bad motor

SOURCE: Fisher and Paykel N500B fridge freezer. Freezer not freezing

I had a similar problem on the same model. Ice creams were soft & frozen food not ice cold. I opened the freezer. Removed the food & noticed the evaporator fan at the back was not turning. This is the likely cause of poor cooling in the freezer. I got it running by turning the fan with a screwdriver but replaced the fan soon after!!!