(1)  Where there is a breach of warranty by file seller, or where the buyer elects or is compelled to treat any breach of a condition on the part of the seller as a breach of warranty, the buyer is not by reason only of such breach of warranty entitled to reject the goods; but he may—

   (a)  set up against the seller the breach of warranty in diminution or extinction of the price; or

   (b)  sue the seller for damages for breach of warranty.

   (2)  The fact that a buyer has set up a breach of warranty in diminution or extinction of the price does not prevent him from suing for the same breach of warranty if he has suffered further damage.