In most states, your landlord has 14 to 30 days to fix a broken AC after receiving proper written notice, and that window can shrink to 24 to 72 hours when extreme heat turns the situation into a health emergency. There is no federal deadline that answers how long your landlord has to fix your AC, so the exact number depends on your state’s housing code, your lease, and how dangerous the indoor conditions have become. The clock does not start when the unit breaks. It starts when your landlord receives notice in a form the law recognizes.
Is Your Landlord Even Required to Fix the AC
Before counting days, confirm your landlord owes you the repair at all. Air conditioning is not automatically treated as a habitability requirement the way heat, running water, and plumbing are in most states. If your state treats AC as an optional amenity, the duty to repair comes from your lease rather than the housing code.
If your lease lists air conditioning as a provided feature, your landlord has a contractual obligation to keep it working. Separately, the implied warranty of habitability, which exists in nearly every state, requires landlords to keep rental property safe and fit for human habitation even when the lease is silent.1Legal Information Institute. Implied Warranty of Habitability Whether a dead AC unit violates that warranty depends on your climate, the season, and the actual indoor temperatures. Indoor readings of 95°F during a Phoenix July are not the same legal situation as a mild October afternoon in Portland.
For tenants in federally subsidized housing, HUD’s inspection standards treat a non-working AC as a health and safety deficiency when the unit was designed to include one, though there is no mandated maximum indoor temperature for cooling the way there is a 68°F minimum for heating.2U.S. Department of Housing and Urban Development. NSPIRE Standards V2.1 – HVAC Check your lease first, your local housing code second, and your state habitability standards third.
Standard Deadline vs. Emergency Deadline
Once notice is delivered, repair timelines fall into two categories.
- Non-emergency repairs. Most states allow 14 to 30 days for habitability issues that aren’t immediately dangerous. A broken AC during a cool stretch typically fits here.
- Emergency repairs. When extreme heat creates an immediate health risk, several states compress the timeline to 24 to 72 hours and let tenants pursue remedies almost immediately if the landlord doesn’t respond.
What pushes a broken AC from standard repair into emergency territory is the severity of the conditions and who is living in the unit. Indoor temperatures above 90°F, a tenant with a documented medical condition, young children, or elderly residents all weigh toward emergency treatment. Some local housing codes set specific temperature thresholds. Others apply a reasonable person standard. The worse the conditions, the shorter the window.
How to Start the Clock
Written notice is what starts the statutory period, and in most states it’s a legal prerequisite to any remedy. A text in passing or a verbal mention in the hallway may not qualify. Without proper notice, a court can dismiss your repair claim outright.
Your notice should include a clear description of the problem (the AC is not producing cold air, for example), the date you first noticed the issue, and a reference to any earlier verbal requests. Send it to whoever you pay rent to. Certified mail with return receipt requested gives you proof of delivery. Some states also accept hand delivery with a signed acknowledgment, email, or text if your lease allows electronic communication.
While you wait, document conditions. A digital thermometer that logs indoor temperature and humidity gives you concrete evidence. Take timestamped photos of the thermostat. Save every communication, including unanswered calls and messages. That record is what separates a strong claim from a he-said, she-said dispute later.
What You Can Do If the Deadline Passes
If your landlord’s window closes without action, you have several tools. Which ones apply depends on your state, and each carries procedural requirements you have to follow precisely.
Repair and Deduct
This remedy lets you hire a licensed contractor to make the fix, then subtract the cost from your next rent payment.3Legal Information Institute. Repair and Deduct Most states that allow it require you to have given written notice and waited the full statutory period first. Many cap the deductible amount, often at one month’s rent per repair, and some limit how often you can use the remedy in a 12-month period. Keep every receipt and get an itemized invoice. Hiring an unlicensed handyman or deducting more than your state allows can convert a legitimate remedy into grounds for eviction.
Rent Escrow
Some states let you deposit rent into a court-controlled escrow account instead of paying a landlord who won’t repair. The court holds the money and releases it only after acceptable repairs. If the landlord still refuses, the court can order repairs, reduce rent, or release funds to you to arrange the fix. Escrow requires you to pay the full rent amount on time to the court clerk. Simply stopping payment is not the same thing, and the distinction matters.
Constructive Eviction
When the unit becomes genuinely unlivable and the landlord won’t act, you may be able to terminate the lease without penalty by claiming constructive eviction. Courts require proof that the landlord’s failure substantially interfered with your ability to live in the unit, that you gave notice and nothing happened, and that you vacated within a reasonable time after it became clear no repair was coming.4Legal Information Institute. Constructive Eviction That last element matters: you generally cannot claim constructive eviction and keep living there.
Why You Can’t Just Stop Paying Rent
Stopping payments because the AC is broken, without going through escrow or repair-and-deduct, exposes you to eviction for nonpayment. Landlords file eviction proceedings while repair disputes are pending, and telling a judge you spent the rent money because the AC was broken is not a defense that typically works. Keep paying through proper channels: full rent to the court if you’re using escrow, the reduced amount with documentation if you’re using repair-and-deduct. Even strong tenant-protection states require you to be current and to follow every notice step before your remedies take effect.
If a Medical Condition Makes Heat Dangerous
If you have a medical condition that makes heat genuinely dangerous, such as multiple sclerosis, certain heart conditions, or respiratory illness, the Fair Housing Act may give you stronger footing. It prohibits housing providers from refusing reasonable accommodations necessary for a person with a disability to have equal opportunity to use and enjoy their home.5Office of the Law Revision Counsel. 42 USC 3604 – Discrimination in the Sale or Rental of Housing In practice, that can mean your landlord has to prioritize the repair, install a cooling unit where none existed, or allow a window unit even if the lease prohibits modifications. You’ll need documentation from a medical provider explaining that your condition is substantially worsened by heat.6U.S. Department of Justice. Joint Statement of the Department of Housing and Urban Development and the Department of Justice: Reasonable Accommodations Under the Fair Housing Act Put the accommodation request in writing, and the landlord cannot charge you extra for granting it.
Most states also prohibit retaliation after a repair request, so a sudden rent increase, non-renewal, or eviction filing shortly after your complaint can be challenged. Keep a timeline of when you asked for the repair and when the landlord’s behavior changed.