Freezer won't run

There is no reset switch. There is a thermal overload protector mounted on the compressor. Does the compressor hum and then give a click sound. If so your compressor has failed. If the compressor is cold (Room Temperature) and it does not try to run your thermostat may be bad. If so remove the temperature control and jumper the two main wires that connect to the control. Unit should be unplugged to do this operation. Insulated the wires so they do not contact any metal surface. Plug the freezer back in. If it runs and cools replace the thermostat.