The answer to 'why is my condenser leaking water' is that the condenser is likely experiencing a drainage issue. The condenser is responsible for releasing the heat that has been absorbed from your home, and during this process, it produces condensation that needs to be properly drained away. If the drainage system is clogged or malfunctioning, the water can back up and start leaking from the condenser unit.
Some common causes of a leaking condenser include a blocked or damaged condensate drain line, a faulty condensate pump, or a problem with the condensate pan. This issue can also be caused by low refrigerant levels, which can lead to the condenser coil freezing up and then thawing, causing water leakage.