Fan motor on wine fridge

https://manualsdump.com/en/manuals/avanti-wc1500dss/66172/12
The above has a troubleshooting matrix.

Power supply: Check if the wine fridge is receiving power from the mains supply. If it's not, there might be a major issue with the mains power or the PSU circuit board in the product that'll likely need replacing if it's faulty.
Condenser fan: The condenser fan is designed to cool the condenser and condenser coil within the Avanti wine cooler. If it doesn't function, the condenser and coil can overheat - causing the internal area of the wine fridge to heat up too. Take a look at the rear of the unit and make sure the condenser fan is spinning freely and not blocked (by dust / dirt) or making excessive noise due debris or a blockage.
Thermostat: If the Avanti wine fridge thermostat is working correctly, it's responsible for making the condenser, evaporator, fan, and compressor work - so it's super important! The thermostat also allows you to control and adjust the temperature of the wine cooler so if the reading on thermostat is inaccurate (or flat out wrong) the wine cooler temperature will likely be inaccurate too.

Why Is My Avanti Wine Fridge Not Cooling (And How To Fix It) - Expert Wine Storage

Question edited for clarity.
Question moved to a better category..

The Thermistor has failed or is failing. It is the temperature sensor that is basically your electronic thermostat.
Troubleshooting Guide: U-Line Refrigerator Error Codes U-Line refrigerator troubleshooting begins with cracking the codes. Let's take a look at U-Line brand error codes.

Error Code ER

Diagnosis: Thermistor 1 is open

Explanation: The U-Line refrigerator error code ER is alerting you to a failed thermistor. Thermistors are used for various temperature readings. These provide reliable temperature readings using a resistance which varies based on surrounding temperatures. If you have a U-Line wine cooler, for example, it will include ambient temperature surrounding the refrigerator unit.
If the thermistor 1 fails, the refrigerator will continue to operate on a preset 10 minutes on and 30 minutes off time interval.

Solution: Use an accurate ohm meter to test the thermistor. If the thermistor is defective, have it replaced.

https://www.google.com/search?q=uline+u-2115wcs+thermistor

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This WC model doesn't have a "compressor fan".

If I checked out the right video it sounds like a fan motor. After a fan motor heats up and with age the fan will leak a little oil, the oil will become to thin and not cote the bearings well enough. It sounds like the fan trying to start back up after stoping. I would track down the fan motor and replace it.

Check condenser make sure it is clean then listen to see if condenser fan motor is running . if compressor is running cuntinuesly and other mentioned are ok it could be low on Freon

Does the compressor vibrabte? If not, the PCB isn't working and should be replaced or worst case is your compressor burned out.

if fan motor making noise its not turning fast enuff to get frige cold enuff to shut off replace it

OK if you have a 20 series and you have a light and no fan or compressor then you need a thermostat. This will have 2 wires to it and if you bypass the thermostat the unit should run. If it does then replace the thermostat

In the Freezer or Fridge compartment, there is the Evaporator Fan (& Motor) If the freezer is cold, the Evaporator fan motor most likely went bad. Check to see that when the compressor is running, so should be the fan motor. If not, you have to remove it & replace it. It is not an expensive repair unless you call for service on it. Make sure that you unplug the fridge when you replace the fan motor.

ice block has formed in the air exchange from the freezer to fridge. Turn off and thaw out, afterwards, check to see if the fan motor is running unobstructed. If problem persists, replace fan motor with new