Why my air con has water leaks?
In all split type air con system, there is tray under the coil to collect all the condensation and guide that drain away fm the system.
If the tray did not install properly > water will leak , also if there are any crack around the tray, it will also has water leaks.
Sometime, if you did not clean your air con for a long time, the tray become too dirty and water can not run to drain, it will also cause water leaks.
For the water pipe parts,
if the pipe was bended, blocked or not install at the correct angle, it will also cause the leaks problem.