A central air conditioning condenser is a popular target for insect infestations, particularly if you're not attentive to it in the off-season. When it's turned off in the early fall, the condenser acts as a shelter for many pests, and then in the spring, those pests can multiply. Understanding the most common insect threats to your central air conditioning will help you to be proactive about preventing them completely. Here's a look at two of the most common culprits and what you should do about them.
Ants are attracted to your central air conditioning condenser because of the electrical pulses and shelter that it provides. When a colony moves in, though, it can actually damage the sensitive parts inside the unit.
If you notice an ant colony nesting near your condenser, you'll want to act fast to preserve the integrity of the unit. Boric acid makes an ideal ant bait to help you keep the population at bay while you await treatment from a pest control company and a thorough cleaning by your HVAC technician. Just mix a teaspoon or two of boric acid into a cup of honey or apple jelly. Warm it to dissolve the boric acid, then place small amounts into soda bottle caps. Put the caps around the air conditioner. Replace them as they deplete to help manage the colony growth while you wait.
Discourage ants from ever nesting there by planting mint around your condenser. While the smell of mint is welcome for many people, it is a repulsive odor to ants. Plant it strategically around your yard as a deterrent against colonies moving in.
Your air conditioning condenser is a prime target for wasps nests when the weather starts to warm up but isn't yet warm enough for air conditioning. Wasps are drawn to tiny spaces, and the condenser unit offers plenty of those. If they nest in the condenser before you turn the unit on for the year, you may inadvertently draw them into your home when you start your air conditioning.
Discourage them with water traps and decoys. A water trap is a commercially-available deterrent that you fill with sugar water. Put the water in the reservoir, then hang the trap near your condenser unit. The wasps will fly in after the sugar water, then will be unable to get out. Just don't let it get over-full before you swap it out, otherwise some may manage to get loose.
You can also prevent wasps by installing a decoy nest. Since wasps won't nest in an area where there's already a nest present, hanging a decoy nest or two around your property may help keep them away without the use of pesticides.
With the tips here and routine maintenance from your preferred HVAC technician, you can keep your central air conditioning system running at its best and pest-free. However, is pests have already damaged your HVAC system, contact an electrical company such as Plisko Electric for help.