Unfortunately, air-conditioning is not included in the warranty of habitability. You might look through your lease to determine whether it addresses the landlords obligation regarding air conditioning. Given that air-conditioning is not typically covered under the warranty of habitability, it may be a little bit risky to exercise your right to repair and deduct, but that might be your best Angle, If you use that approach to purchase a room air conditioner and offer it to the landlord to assist other tenants with air-conditioning problems, after your unit is fixed and your rent reduced by the cost of the room air conditioner.
Answered on Aug 22nd, 2013 at 11:57 AM