A thermostat may fail in a couple of ways, It may have failed open causing your unit not to turn on at all or it may fail closed causing your unit to run continuously. Over time it may become weak and un calibrated causing radical temperature variations in your freezer or cooler.
If you have a question on the accuracy of your thermostat, you may want to check the calibration of the temperature of your refrigerator or freezer with an accurate food testing thermometer. |
