How Long Does A Window Air Conditioner Last On Average?

Window air conditioners are a great way to beat the heat during those sweltering summer months. But they can be pricey, so you have to consider them as a type of investment.

As with any investment, you want to know how much utility you can get from it during its lifespan. So below we’ll take a look at what type of life you can expect to get from a typical window AC unit as well as some signs telling you that it’s time for a replacement.

How Long Does A Window AC Last?

How Long Window Air Conditioner Last

On average a window AC unit should last 10 years when maintained and used properly.

Of course, this can vary based on several factors. Most notably, selecting the incorrect size of window air conditioner for the room can reduce the lifespan of the unit.

The reason being tht the unit will have to work harder and run more often, increasing the wear. So make sure to always pick the right size air conditioner for the room being cooled. Trying to save money by buying a smaller window AC unit may end up costing you more in the long run.

Regular maintenance also plays a role in how long your window air conditioning unit will last. Simple steps such as following the manufacturer’s guidelines for cleaning and filter replacement go a long way towards extending the life of the AC unit.

How To Know When There’s No Life Left In Your Window Air Conditioner And It’s Time To Get A New Unit

1. Less cool air or no cool air at all

This one may seem obvious, but if there is no cool air coming out, there is clearly a problem. However, before that happens, the air coming out of the window AC unit will typically start to become warmer. This indicates a problem is starting and should be addressed.

If caught early, you may be able to avoid a costly repair by performing some simple maintenance or cleaning. But if that doesn’t help, it most likely means your window AC unit is starting to fail.

2. Strange noises

All window AC units make noises. Usually these occur during start-up and shut-downs and are not an issue at all.

However, strange new sounds or harsh sounds such as knocking, scraping, or other mechanical sounds generally mean a serious problem is present and the unit may be getting close to failing.

3. Higher utility bills

When a window air conditioner is brand new it will be the most efficient. However, as it reaches the end of its lifespan, that efficiency is reduced.

So if you notice your electric bill is higher than usual, a dying window AC unit may be to blame. You’ll want to inspect the unit to make sure it’s clean and draining properly to rule out any simple fixes that may solve the problem.

4. Unpleasant odors

A properly running window air conditioner should have no smell at all. So if you start noticing new odors coming from the unit, there is a problem.

Burning or smokey odors indicate a serious problem, and the unit may not be safe to use until inspected by a professional.

Musty or moldy odors could mean the unit just needs a cleaning, but it may mean the build up is too much and the unit is getting close to the end of its lifecycle.

What’s The Average Lifespan Of A Window AC FAQ

window ac average lifespan

Will running a window AC unit on max reduce the lifespan?

Yes. Always running your AC unit on the max cooling settings can increase the wear and reduce the longevity of the unit. This is why it’s important to select the right size unit for your room.

A window air conditioning unit should cycle on and off as it maintains the desired temperature in the room.

What type of maintenance does a window AC unit need?

Basic maintenance includes making sure the coils are clean and free from dirt and debris that can build up over time.

If the unit has a filter, make sure to change or clean it at the recommended intervals described in the user manual. This can also help with any odors that may be originating from the unit.

Check the water drainage hose to make sure it is free from obstructions and the condensation is freely flowing out of the unit.

Finally, in the winter months make sure to remove the unit or properly protect it from the elements

Does my window air conditioner need to be recharged?

Generally no. The refrigerant used is stored in a closed system and does not come in contact with the outside air. A recharge would only be needed if a leak has developed somewhere in the system.

Can I run my window AC unit all day?

You can, but if the AC unit never shuts off it means the unit is either not running efficiently or is too small for the room. The longer it runs non-stop, the less efficient it becomes to maintain the same temperature in the room.

So if your window AC is running all day without cycling off, it means there may be a problem that needs to be addressed.

Should I hire a professional to maintain my window AC unit?

Regular maintenance on a window AC unit can be done by the owner. This includes visually inspecting for dirt or debris buildup, filter cleaning or replacement, and making sure condensation is draining properly.

Professional maintenance is only required for repairs or other major issues that have made the unit inoperable.

Final Words About How Long Does A Window Air Conditioner Last

A well maintained and properly sized window air conditioning unit should provide at least a decade of reliable service, and sometimes more.

Just make sure to follow the tips in this article and your window AC unit will help keep you cool this summer and for many more seasons to come.

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