Register Your HVAC Warranty or Lose It: Indiana Homeowner Guide

We got a call last summer from a homeowner in Irvington. Her AC quit on a 95-degree day. She had the receipt from her install just a few years back. She thought that was enough. It wasn't. When our tech checked the model, the manufacturer said her warranty was only a base 5-year parts plan, not the full 10-year one she expected. Why? She never completed the HVAC warranty registration. That one small step would have saved her almost $2,000. This guide is for every Indianapolis-area homeowner staring at a new system — or about to be — so you don't make the same mistake.

Your Receipt Is Not the Same as HVAC Warranty Registration

Most HVAC manufacturers offer two levels of coverage. There's a basic term that kicks in automatically, usually 5 years on parts for a furnace or AC. Then there's the full term — often 10 years — but only if you register the product online within a set window. That window is your warranty registration deadline. It's usually 30 to 90 days after installation. In Indianapolis, where summer heat and winter cold run your system year-round, that difference matters. A 5-year parts warranty might cover a compressor in year 6? Nope. You're buying a new one.

I've talked to homeowners in Carmel and Fishers who assumed the contractor handled every bit of paperwork. Some contractors do offer to register, but you should never assume. Ask for the confirmation email. If it's not in your inbox, the registration didn't happen. Treat manufacturer warranty registration like changing your address with the post office. It's on you.

The Magic Numbers You Need

Before you can register, you need the right numbers. The two big ones are the model and serial number. They live on a rating plate or sticker. For an AC, look at the outdoor condenser. The plate is usually on the side or back. For a furnace or air handler, open the front panel — the sticker is inside the cabinet. If you have a newer system in a utility closet or garage, it's still there. Older homes in Broad Ripple or Meridian-Kessler often have equipment in a basement. Bring a flashlight and your phone camera. Snap a clear picture of the plate. That's your model and serial number lookup, done.

You'll also need the installation date, your property address, the installing company's name, and sometimes a copy of the installation invoice or permit. Some brands ask for proof of installation. That's your receipt plus maybe a photo of the equipment in place. If you added accessories like a smart thermostat or an air purifier, they might need their own registration. Yes, even that thermostat. If you're not sure why it matters, here's a guide to diagnosing thermostat problems that aren't about registration at all.

Step-by-Step Registration (Don't Skip This)

Every brand has a registration portal. Find the one for your manufacturer's website. Create a homeowner account with your email and address. Enter the model and serial numbers for each piece of equipment. If you have a split system with an AC and a furnace, each needs its own registration. Fill in the install date and contractor info. Some portals ask you to upload proof of installation — have that photo ready. Hit submit. Then save the confirmation page or email as a PDF. Print a copy and stuff it in a folder with your install paperwork. That folder is your friend.

If you miss a field or type a serial number wrong, the registration might not go through. Double-check before you close the tab. The HVAC warranty registration process is different for each brand. Some are simple. Some have more steps. We at HVACPros walk customers through this on installation day. But we also remind you to look for that confirmation email before we leave your driveway.

Parts, Labor, and What's Actually Covered

Here's where people get confused. The manufacturer warranty covers parts. That's the compressor, the heat exchanger, the control board — the expensive stuff. It does not cover labor. The guy driving to your house and spending three hours replacing a part? That labor is on you, unless you have a separate labor warranty from the installing contractor or a purchased plan. Some HVAC companies include a labor warranty for the first year or two. After that, you might want an extended HVAC warranty. That's a separate product, often called a labor plan or service agreement. It's not the same as the manufacturer's parts coverage. Know the difference. If a contractor tells you their labor warranty is "bumper to bumper," ask to see the terms and conditions in writing.

Keep the Warranty Alive with Basic Maintenance

A warranty isn't a set-it-and-forget-it deal. Most manufacturers require you to change filters on a schedule and have routine tune-ups. These are the owner maintenance requirements. If you can't show that you did, a claim could be denied. Keep receipts for filters and logs from service visits. In central Indiana, pollen and construction dust can clog a filter fast. New homes in Greenwood or Avon kick up drywall dust for months. Here's a simple guide on how often to change your HVAC filter in Indiana. But the short version: check it monthly during peak seasons. A clogged filter makes your system work harder and can lead to breakdowns that the warranty won't cover if neglect is the cause.

What If You Missed the Deadline or Are Buying/Selling a Home?

Missed the window? Don't panic. Call the manufacturer. Some brands allow late registration if you can show proof of installation and the equipment hasn't had a claim. Your installer may also have a record of the model and serial numbers. It's worth a try.

If you're selling your home, a transferable HVAC warranty can be a selling point. Many manufacturers allow a transfer within a certain time after closing, sometimes for a small fee. Check the home sale warranty transfer rules before you list. And if you're buying, ask the seller for the original registration confirmation. A system that's only 3 years old but was never registered might only have 2 years left instead of 7. That's a real thing. The warranty claim process will go smoother if you have all your records in one place.

Storm Damage and That One Thing Warranties Don't Cover

Midwest thunderstorms can fry a control board. A power surge or lightning strike is not usually covered by a manufacturer warranty. That's a different category. If your system stops working after a big storm, don't assume the warranty will handle it. We've written a guide on what qualifies as an HVAC emergency to help you decide whether to call right away or wait. Spoiler: no cooling in July is an emergency.

Let's Get Your System Registered Right

HVACPros serves Indianapolis, Carmel, Fishers, Zionsville, Westfield, Noblesville, Greenwood, Brownsburg, Avon, and Plainfield. If you're installing a new system, we document every model and serial number and help you register online before we leave. If your system is already in and you're not sure, we can do a post-install check. We'll verify your equipment details, look up your warranty status, and help you get the coverage you paid for. Get a quote or schedule that check here.