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Dog Peed on the AC Unit Heres What to Do

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Ever caught your dog using the AC unit as their personal bathroom? It happens! But what’s the next step?

First things first, let’s tackle prevention. The most effective way to keep your dog from marking their territory on the AC unit is to create a barrier. Even a small fence or rock wall can deter your furry friend. Just ensure it’s tall enough to prevent any spray from reaching the unit. Alternatively, you can use deterrent sprays to make the spot less appealing or supervise your dog while it’s outside.

But what if it’s too late, and the deed is done? Don’t panic! Start by shutting off the AC unit—both at the thermostat and the circuit breaker. Air conditioners often run on high voltage, so safety first. Next, remove the protective grill and take it to a different part of the yard for cleaning. Hose it down thoroughly. Then, wipe down the condenser coils with a damp cloth to remove any urine residue. A fin-cleaning brush can be useful for cleaning the condenser fins. This is also a good chance to clear away any leaves or debris inside the unit.

If you suspect the unit was peed on but didn’t witness it, go ahead and clean it as much as possible. However, it’s wise to schedule an inspection with a qualified technician. They’ll check for any damage to the condenser coils. Dog urine is acidic and can corrode these coils, potentially causing freon leaks. If the coils are damaged, repairs or a complete replacement may be necessary, which can be quite costly, ranging from a few hundred dollars to over $4,000 in some cases.

Why is it so critical to keep dog pee off the AC unit? Besides the obvious corrosion, damaged coils can severely reduce the efficiency of the unit. This means your AC will work harder, less efficiently, and your energy bills will skyrocket. In the worst-case scenario, multiple pee incidents could render the unit completely inoperable.


So, the best course of action is prevention. Barriers, deterrent sprays, and supervision can all be effective strategies. If accidents do happen, timely and proper cleaning can minimize damage and save you from expensive repairs.

In the end, keeping your dog away from the AC unit can save a lot of hassle and money. Pay attention to your dog’s habits and take preventative measures to keep both your AC unit and your pet happy.

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