What condition results from low line voltage at the compressor?

Low line voltage at the compressor can lead to both high motor current and high motor temperature, making the chosen answer valid. When the voltage supplied to the compressor is lower than the required voltage level, the motor struggles to maintain its operating speed. This struggle results in the motor drawing more current in an attempt to compensate for the insufficient voltage.

As the current increases, so does the heat generated within the motor due to electrical resistance, leading to a higher motor temperature. Operating under these conditions can result in overheating of the motor windings, potentially causing damage or reducing the overall efficiency of the compressor.

Additionally, under low voltage situations, the compressor's ability to perform effectively is compromised, ultimately leading to higher stress on the electrical components, which can result in premature failure. Understanding this relationship helps in diagnosing common issues that arise from electrical supply problems within HVAC systems.