Conn. Gen. Stat. § 42a-2A-731
A lessee is precluded from relying on a nonconforming performance as follows:
(1) The lessee's failure to state, in connection with a rejection under section 42a-2A-725, a particular nonconformity that is ascertainable by reasonable inspection precludes reliance on the unstated nonconformity to justify rejection or to establish default if:
(P.A. 02-131, S. 84.)