Paragraph 3
The warranty is not required to provide for the rectification of a problem which—
(a)
is covered by a warranty provided by the manufacturer of the boiler; or
(b)
arises after the boiler is installed where that problem arises from one or more of—
(i)
negligence of a third party;
(ii)
accident caused by a third party;
(iii)
misuse of the boiler by a third party;
(iv)
repair of the boiler by a third party.