Can the press couplings of a wall heating become leaky (manufacturer's guarantee)?

As soon as the press couplings have been pressed according to the manufacturer's instructions and the system has been successfully tested for leakage by the installer, a press coupling can no longer leak.

If a problem should nevertheless occur, it is important to have it repaired by a specialist on site. By the way, the press couplings alone have a manufacturer's guarantee of 25 years.