Which of these can cause compressor short cycling?

Compressor short cycling occurs when the compressor turns on and off excessively in a short period. This can lead to inefficiency, increased wear and tear on the system, and potential failure.

While dirty coils can indeed contribute to this issue by reducing the overall efficiency of heat exchange, leading to the compressor cycling on and off to maintain the desired temperature, it is important to recognize that other factors can also lead to short cycling. Low evaporator temperatures can sometimes cause the system to cycle more frequently as the compressor struggles to maintain the setpoint. Additionally, excess oil in the system can lead to improper lubrication and negatively impact compressor performance, which can also result in short cycling.

Therefore, the most comprehensive answer is that all of the listed factors can contribute to compressor short cycling, indicating that a thorough understanding of the system and its components is necessary for diagnosing and correcting such issues effectively.