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How to Keep Mice Out of An Air Conditioner

Published by Blue Corona

An outdoor air conditioner is great for staying cool in the warm Birmingham weather, but mice like to take refuge inside them during the winter. Once the weather warms up, mice may have claimed your HVAC unit as their own. Here are some DIY pest management tips to protect your air conditioning system before you call pest control.

Inspect the Unit Every Month

It’s hard to spot mice in an air conditioner because they’re small. Despite this, there are still some common signs to look for if you suspect mice in your air conditioning unit, such as

  • Chewed wires
  • Foul odors
  • Droppings, urine, and nests

If you notice any of these signs, you have a mice infestation. If you decide to remove them yourself, always use gloves, goggles, and other personal safety equipment before removing the rodents from the unit. Then, clean up the residue.

AC drain hose bitten by rodent.

Seal All Points of Entry

After finding mice in the air conditioner, seal all entry points to avoid more issues. Mesh screens, for example, make excellent vent covers to protect the air ducts and pest-proof the air conditioner. You can also caulk and seal any openings to prevent mice from entering other areas around the property.

Protect the Air Conditioner Condenser

Of course, you need to protect the air conditioner’s condenser. Mice can cause inefficiency in your cooling system, costing you higher energy bills. A simple way to protect the condenser is to clean the surrounding area.

Your AC unit should sit above ground at least two feet from your home. Cut the grass around the unit to remove potential hiding spots for mice and other pests.

Call Us for More Help!

If you’re still stuck on how to mouse-proof an air conditioner, call us at 205-655-2396. We’re available 24/7, providing expert air conditioner repair and system maintenance. Ask about our Pink Plan for cost-saving annual HVAC maintenance. Whichever issues you face, we’re ready to fix your HVAC system whenever you need us.

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