As the weather warms and many homeowners turn on their air conditioning for the first time this season, you may discover problems caused by rodents wintering in your air conditioning unit. Mice and squirrels can get into the outdoor air conditioning unit. They are prone to chewing parts of the system, including electrical wires, which can cause significant damage.

Rodents may also bring leaves and other debris into the condenser unit, affecting the system’s ability to function efficiently. These problems are often left undiscovered until you try to turn on the air conditioner in the spring. If the unit is not cooling the house properly or not working at all, then you may have experienced damage from rodents to the HVAC system.

Rodents can also enter your HVAC unit’s indoor areas when seeking warmth and shelter. They may be in your home’s ductwork, creating damage as they chew through ducts and fiberboard. The wiring is also vulnerable, as rodents love to chew electrical cords. The insulation around the refrigerant lines of your HVAC unit can also make a great nesting material for these rodents.

Keeping Rodents Away from Your A/C Condenser Unit

Keeping debris cleared away from the condenser unit can make it less enticing for rodents and other pests. You will want to make sure the grass is kept short and that the area is kept clear of weeds. Long grass and other vegetation can make an ideal hiding spot for mice, chipmunks, and squirrels.

If you suspect mice may be getting into the unit, you can try to deter them with cinnamon or cayenne pepper sprinkled around the condenser unit. This is a natural and sometimes effective way to deter pests from the area. If the problem persists, you may consider a pest control company to help control the issue.

Damage Seen to Your HVAC System from Rodents

An HVAC system that isn’t working properly will need to be troubleshooted by a trained technician. Some of the most common damage identified in the springtime that can be attributed to rodents include bent or broken ductwork, premature corrosion due to urine and other droppings, destroyed electrical wiring, damaged or missing insulation, and blocked exhausts.

If you suspect that your HVAC system may be damaged by mice, chipmunks, or other rodents, you should have a technician evaluate the extent of the damage and make the necessary repairs. You can then take precautions to prevent rodents from entering your home or accessing the outdoor condenser unit with a pest control professional.

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