The compressor is extremely noisy. You can hear it when you are far from the refrigerator.

Have you removed the cover on the rear of the refrigerator so you can test by listening there with the cover off? There also is a fan located next to the compressor and behind the rear wall of the freezer compartment.
Appliance 911 Sea Breeze

Some compressors can be very noisy, but it really depends on the type of noise.

Unfortunately these compressors need airflow over the casing for cooling. New comp or try a white noise box.

Ah this is an indication that your condenser has become dirty, or blocked, or the fan motor is not working or the air flow is restricted.
The noise is generated when the compressor cycles off and sudders to a stop

Hi,

Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.

If you are hearing a clicking or buzzing then check out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay

Refrigerator or Freezer not Cooling or Getting Cold

Here is a tip that I wrote about refrigerators and the fan noise that they develop sometimes...

Refrigerator Fan Noise

heatman101

sounds worn, would get a new fan fitted, as would cost alot more if the compressor overheats and gets damaged .

If you hear the compressor (underneath the refrigerator) running okay, you need to check around the compressor and see if the compressor fan is turning. If this fan does not turn, heat is not removed from the refrigerant coils as it should be. This greatly lessens the cooling ability of the system.

If this fan is not turning, you will have to replace the fan motor.

is unit cooling? if not suspect a deficient compressor. if it likes makes a rattling noise really loud suspect compressor wear hope it can help.

Have you ever cleaned the coil under the refrigerator? If the coil is very dirty the compressor will run very hot and when it finaly shuts off its banging is a sigh of relief. Pull the bottom panel off and vacuum inside as far as u can reach. They also sell brushes for cleaning them.

you should not hear it from that far away. It sounds like it may be compressor related. The only thing you could check to make sure is remove the lower rear cover and check the condensor fan and listen to the compressor to see if thats where the noise is cmming from. Check the fan in the freezer too.