Morris-Jenkins HVAC technician smiling with a brown lab dog

Who’s Peeing on Your Air Conditioner?

Is your air conditioning unit exposed? Do you have a dog in your backyard?

One of your dog’s favorite places to relieve him or herself is probably on your A/C unit!

Even if you think your dog doesn’t go to the bathroom on your unit, he or she probably does. Our installation supervisor says he once was talking with a homeowner, and in the middle of the homeowner saying he was certain his dog didn’t cause the damage on his unit, the dog walked up and peed on the unit right in front of them. This behavior seems strange to us, and it can seem funny at first, but it can cause major damage to your air conditioner!

Why Do Dogs Pee on Air Conditioners?

Damage caused by dog pee on an AC unit outdoors

If your dog pees on your AC, it can cause a lot of damage! Here's an example of a unit with damage done by a dog.

Dogs mark their territory all the time, and your AC unit is part of their territory. Not only that, but your air conditioner is worked on by people your pup isn’t familiar with—like your Morris-Jenkins techs! That means your unit has the scent of strangers, and your dog feels the need to let those strangers know that’s his territory!

What Happens if Your Dog Pees on Your AC?

Outdoor AC unit damaged by dog pee

Check out this outdoor unit! It's looking really damaged, right? It might seem innocent when your dog pees on your AC, but unfortunately, it can truly do a number on your system.

Dog pee on your AC can corrode the aluminum and the copper of your outdoor unit. If these begin to corrode away, it can cause several problems for you and your A/C!

Urine can destroy condenser coils, and this can lead to a freon leak. Regular maintenance helps ensure a technician can catch the leak early on before it gets too bad. If the leak is left unchecked, it can continue to get worse until it needs to be replaced entirely.

Wanna save money on your HVAC maintenance? Check out the perks of a Priority Advantage Membership!

If too much of your air conditioner is damaged by dog urine, it’ll have to work harder to cool your home with the damaged parts, and this can hike up your energy bills and leave you with an inefficient unit.

You might also be interested in: "8 Signs You Might Have a Refrigerant Leak"

What to Do if Your Dog Pees on Your Air Conditioner

You can’t always monitor where your dog goes to the bathroom, but there are still some solutions to prevent this kind of damage, such as scheduling regular maintenance and blocking off your dog's access to the unit.

1) Get Your Coils Cleaned

Morris-Jenkins technicians LOVE dogs! We know they don't mean to damage your unit. They're just trying to mark their territory. We'll work with you to make sure any damage done from dog pee on your AC unit is taken care of, and while we're at it, we'll give your dog some belly rubs!

The first solution is to have your coils professionally cleaned on a frequent basis. This is necessary at least once a year to make sure your unit is running as efficiently as possible, even if you don’t have a dog! When your technician comes to clean your coils, they’ll use an environmentally friendly chemical cleaner designed for use on your AC. Your tech will also use a special tool to get the cleaner all over the coil to make sure it’s as clean as can be so there’s nothing left that could cause corrosion.

Related: "Do You REALLY Need Routine Maintenance?"

2) Block Your Unit from Your Dog

Coil cleaning is an important part in making sure your AC runs efficiently, but it doesn’t stop your dog from peeing on your air conditioner again. In order to keep your dog from using your AC as his own personal bathroom, you can build a fence around your unit to protect it. Just be sure not to build too close to the unit or it could prevent proper airflow!

How to Stop Your Dog from Peeing on Your AC

You may have never seen your dog around your outdoor unit, but it’s best to treat the A/C as if he does visit it, whether that means you schedule coil cleanings or build a fence around your unit—or both! Keeping your air conditioner clean and free of dog urine helps ensure your unit can live a long life of cooling your home!

Think your dog may have damaged your AC?

Give Us a Call!

Similar Articles: