is this the same for any appliance eg: a hot water service also ? Or are there nuances ?
The key to all this is mostly who owns the pipe that burst. If the burst pipe or hose was between the wall and the appliance, then it’s the lot owner’s responsibility. If it was inside a common property wall, it is the owners corp responsibility.
Regarding a hot water service, the same principle applies, except that in many schemes the hot water supply is a common property installation and the OC would then be responsible for the hot water system and the pipes leading to it.