If chest freezer's compressor works without stop?

Condition1: temperature is too high inside
a. If there are too much articles full inside the cabinet?
Check-point:if cooling circulation s blocked?
Counter-measuring: Takeout some machandisers

b. If door opening time is too long?
Counter-measuring:Close the door and reduce door opening time

c. If evaporator frosted too much?
Check-point:if thickness is more than 5mm
Counter-measuring: Defrosttin time

Condition 2: Temperature reached

a. If ther thermostat works properly?
Counter-measuring:Replace the thermostat

b.If temperature sensor tube is off the evaporator?
Check-point: if the temperature sensor is off
Counter-measuring: Securethe sensor tube in position