What could be the fault with the Supreme- Galanz model KFR-25GW/A4 when switched on goes into standby

Check that the temperature setting is not at or above ambient temperature as the machine will go into standby until the thermostat is activated by a higher temperature that what it is set at.. So if the setting is 35degrees and the room temperature is 25degrees it sensors that it need not turn on and will go to standby until the 35 degrees becomes less than the 25 degrees.