lease to purchase contract

The answer to your question depends upon the terms of your agreement with the seller.  At this point your are a tenant thus, one would expect the landlord to be responsible for the repairs.  However, it is not uncommon in lease-to-own contracts for the landlord to attempt to shift that responsibility to the tenant "as the new owner." You will need to carefully review your contract, attempt to negotiate with the landlord, and likely consult with an attorney regarding the specific facts and obligations of your contract. Good luck. Don Eby