Signs Your Freezer Thermostat May Be Broken

  How Do I Know If My Freezer Thermostat Is Broken? If your freezer isn’t keeping things cold, the culprit might be the thermostat. The thermostat is the brain behind your freezer’s cooling power—it tells the compressor when to kick in and when to rest. So how do you know if it’s failing? Let’s break it down. What are the signs of a bad freezer thermostat? Here are the most common red flags: Fluctuating temperatures:  If your freezer is too warm one day and freezing solid the next, that’s a sign. Constant running or not running at all:  A faulty thermostat can either overwork the compressor or stop it completely. Frost buildup:  If your food is coated in ice or the walls are frozen, the thermostat might not be regulating properly. Clicking but no cooling:  Hearing the compressor click without cooling usually points to control issues—often the thermostat. How do I test a freezer thermostat? Before calli...