Hi. I want to seek some help with the freezer that i am currenty use for the business. Back to few months ago, my freezer start to play up. The issue was the temperature always goes up and down which mean it can be -18c then the
temperature only stay for 10 minutes then temperature start to goes up to -7c or -3c. Then an hour later, the temperature start went down to -12c then it went up again.

I did call tech to inspect the freezer but they could not point out what cause the problem. I told him that if i replaced compressor, will it solve the problem but he replied not sure ( can be ). At the moment, i just leave the problem aside. I am suspect the temperature controller might be not working probably so it caused the temperature up and down.

From my knowledge, compressor control the freezer, if it replace the new one, the problem should be fix. Is this right?