Does a freezer motor run more if the freezer is empty or full?

A freezer motor typically runs more efficiently when the freezer is full compared to when it is empty. This is because the frozen items help maintain a low temperature, reducing the frequency of the compressor cycling on and off. An empty freezer can experience more temperature fluctuations, causing the motor to work harder to maintain the set temperature. Therefore, a full freezer can help stabilize the internal environment and reduce energy consumption.