Final answer:
An open compressor winding would be indicated on an ohmmeter by an OL (over limit) reading, which signifies infinite resistance or no continuity, implying an open circuit.
Step-by-step explanation:
An open compressor winding would be indicated by an OL (over limit) reading on an ohmmeter. This reading essentially means that there is no continuity and the resistance is too high to measure, reflecting an open circuit situation. Since ohmmeters measure resistance and a high resistance reading (or no continuity) suggests an open circuit, the ohmmeter will display OL for circuits that have an infinite resistance. In contrast, a shorted winding would show a low or measurable resistance, while a good winding would have a specific resistance value indicated by the manufacturer's specifications.