Hello, my CDA fwc602ss wine fridge is not cooling. Appliance around 5 yrs old.

SOURCE: Freezer and Refrigirator not cooling

You didn't say if the compressor is running or not. If it is and all other things you stated are running then it has a sealed system problem. The sealed system comes with a 5 yr warranty in most cases (check owners manual). If the compressor is not running then listen for a click at the compressor. If you hear the click then I would replace the relay on the compressor. If you need further help I will need the complete model # off the sticker inside the fridge section.

SOURCE: Central Air not cooling properly

This tubbing carries the refrigerant. The small line is flowing to their inside air handler. If the line is hot it is an indication that the outside unit is not able to release the heat. The most common reason is that the coil (looks like a car radiator) is dirty or plugged. This can be cleaned with a brush or sometimes a garden hose. They do make acid type cleaners for doing this, but the use of the acids are restricted in some areas.

By the way the other black pipe should have a larger copper line behind the black insulation. That line should be cold and sweaty like a nice glass of ice tea:)

SOURCE: compressor runs constantly, fridge cools, but not as cold as new

If unit is running constantly, and not nearly as cold as it used to be, most likely a freon leak. Possibly a partially frozen over evap too. If evap is mostly clear except for about 5% of it, most probably a freon leak. Changing controls will probably not fix anything. Need to look into this a little deeper.

Good Luck and hope this gets it done for you.

SOURCE: Whirlpool fridge and freezer will not cool

Replace the start relay on the compressor.

SOURCE: our wine fridge doesnt seem to be cooling properly

it may be as simple as the coils needing cleaned you can buy a can of condeser cleaner at your local hardware store.