Section 904 - Notice to terminate contract upon purchaser's default(a) Whenever default is made in the terms or conditions of any installment land contract by reason of which default the seller has the right to terminate the contract, the seller shall as a condition precedent to the exercise of the right serve upon the purchaser a written notice of termination. The notice shall be served personally by registered mail or by certified mail sent to the last known address of the purchaser.(b) The notice shall specify the nature of the default and whenever the default arises out of the purchaser's failure to keep the premises in good repair pursuant to the provisions of the installment land contract, the notice shall contain a reasonably specific statement of the items in disrepair.(c) The date of termination specified in the notice shall in no case be less than thirty days after the date upon which service of the notice is made upon the purchaser, in the manner hereinbefore provided, where default is because of failure to make payment when due. Whenever default arises because of purchaser's failure to make repairs, the notice shall be no less than sixty days.1965, June 8, P.L. 115, No. 81, § 4.