There's a legal way to handle this. You do something called "putting rent in escrow" where essentially you still pay rent, but not the landlord, until the problem is fixed. They have "X" number of months to resolve the problem without it being considered a break in the lease. I have looked up the law in KY, you can start from here...
Right to Deduct from the Rent. When the landlord fails to comply with the provisions of the lease or the Landlord/Tenant Act in a manner that affects the health and safety of the tenant, the tenant may make his own repairs and deduct the expenses incurred from the rent. Once the tenant has notified the landlord in writing of his intention to make the repairs at the landlord's expense, the landlord has fourteen days to comply. If no action is taken within the time allowed, the tenant may have the work done, paying the bill himself. After the tenant sends the landlord an itemized statement describing the work, the tenant may deduct the amount from the rent. Since the landlord's liability is limited, however, the tenant should be cautioned not to repair overly expensive items. The maximum the tenant may deduct is $100 or an amount equal to one-half the monthly rent, whichever is greater. To avoid the possibility of being responsible for payment of the bill, the tenant should seek legal guidance if there is any question as to the applicability of this provision (KRS 383.635).
Also, here's the provisions for termination of your lease:
Right to Terminate Lease. If the landlord fails to comply with the provisions of the lease or the Landlord/Tenant Act, although he has been given adequate notice of the problem or violation by the tenant, the tenant may initiate proceedings to terminate the lease (KRS 383.625). First, the tenant must deliver written notice to the landlord describing the landlord's act of noncompliance and stating that he will terminate the lease after thirty days if the situation described is not remedied within fourteen days. If the landlord either makes the necessary repairs or pays damage within the allotted time, the rental agreement may not be terminated. If the landlord fails to comply with the notice, however, and causes the tenant to move, the landlord must return all prepaid rent.
If the landlord again fails to comply with the lease or with the law within six months, the tenant has the same rights as before but may terminate the lease after fourteen days' written notice rather than thirty days. The tenant does not have these privileges, however, if the problem has been caused by his or his guests' negligence or misuse (KRS 383.635).
You are supposed to be able to reach your landlord, that's incuded in the lease/tenant's rights as well. And by reach, I don't mean an answering machine...
Finally, DOCUMENT EVERYTHING. Send certified letters and keep the receipts. Note the days you called and keep those phone bills.
Hope this helps!