If you have no chilling, then follow this process before arranging technician or warranty claim.
The more information you can provide the quicker we can diagnose and get you back up and running.

-Check that all normal things are going (inner fan, rear fan, compressor, controller)

-Check for icing up inside unit on rear wall around the area where air ventilating slots are, and just above these
*If the unit has NO ice, NO errors on display, and all components are running (inner fan, rear fan, compressor) then there more than likely will be a gas issue or a blockage in the refrigeration system, a technician is then needed. Start the process by filling in form at this link:
https://www.bar-fridges-australia.com.au/making-a-warranty-claim.html

-Check for 'error' codes on the LED display (see Q1 with list of error codes)
The most common error code is E3 and is related to a refrigerant alarm, that can be many things. To start first try to turn the unit OFF at the power and then back ON, this could clear any problem/bug the Carel Controller may think is going on.  It has a lot of safety mechanisms in order to protect the fridge with the slightest hint of a problem.  
If the E3 returns again, usually within 6 hrs, then there is a problem.

These are the basic codes.
“E0” cabinet probe/sensor fault.
Part number GSP1-SENSOR-CABINET, price $49.00

“E1” evaporator probe/sensor fault
Part number GSP1-SENSOR-EVAPORATOR, price $49.00

“dF” alternate flash with cabinet probe/sensor temperature whilst in defrost

“dor" door open timeout. Turn unit off and on, *this should not show on later models as this function has been disabled

“E3” refrigerant system failure alarm can be many things from faulty fan to loss of gas.
Check inner fan is running, Part number GSP1-FAN-INNER, price $119.00
Check rear fan is running, Part number GSP1-FAN-UNDER, price $119.00

“EnS“ alternating to cabinet probe temp, unit is in "Energy Saving Mode".
To take out of energy saving mode press and hold the 'ES ' button for 5 seconds.