We are still feeling the heat of summer. July was mild this year, but August typically brings the heat. Escaping the heat by getting into a nice, cool, air-conditioned home makes everything seem a bit more manageable.
Regular cleaning of the outdoor unit is important for maintaining efficiency and extending the longevity of your air conditioning system.
Even before the outside temperature starts to cool off, it’s a good idea to have a plan in place for shutting down your air conditioner. Prepping or winterizing your AC unit and system can help your home transition smoothly from fall to winter and into the next season. While prepping for winter is important, spring is also an ideal time for a thorough cleaning to prepare your system for the cooling season. Keeping your AC unit protected from the elements means fewer repairs and saves you money. Be sure to clear away leaves, twigs, and other debris from around the unit to prevent clogging and damage.
Please continue reading for our expert tips on cleaning and protecting your outdoor AC unit before winter. Always follow the manufacturer's instructions when performing any maintenance or cleaning tasks.
Introduction to Air Conditioning Maintenance
Regular maintenance of your air conditioner is essential for keeping your home cool and comfortable during the summer heat. By taking the time to properly clean and care for your AC unit, you can ensure it operates efficiently throughout the entire cooling season. Neglecting maintenance can lead to reduced cooling performance, higher energy bills, and even unexpected breakdowns. In this guide, we’ll walk you through the key steps to proper cleaning and maintenance, so your air conditioner can keep you cool and your system running smoothly. With just a little effort, you can extend the life of your unit and enjoy reliable cooling when you need it most.
Understanding AC Unit Components
Before you get started with cleaning, it’s helpful to know the main parts of your air conditioning system. The outdoor condenser unit is the heart of your AC unit’s cooling process. Inside, you’ll find the condenser coils, which are responsible for releasing heat from the refrigerant into the outside air. Surrounding these coils are the coil fins, which help maximize heat transfer by increasing the surface area exposed to the air. The fan inside the condenser unit blows air over the coils and fins, helping to carry heat away from your system. Understanding these components will help you identify which areas need attention during cleaning and ensure your air conditioning system continues to operate at peak performance.
Pre-Cleaning Preparation
Before you begin cleaning your outdoor AC unit, safety comes first. Always turn off the power to your condenser unit at the circuit breaker or thermostat to prevent accidental start-ups or electrical hazards. Next, clear away any debris such as leaves, twigs, or grass clippings from around the unit to maintain proper airflow. If you have plants or shrubs nearby, trim them back so there’s at least two feet of open space around the condenser unit. This will help your AC unit breathe and operate efficiently. Once the area is clear, carefully lift the top of the condenser unit to access the coils and fan for a thorough cleaning.
1. Shut Down the Power to Your AC Unit
Could you shut down the power to your unit? You should find a small box on the side of your home, possibly near your AC unit. Most units will be as easy as flipping the switch off. Ensuring the power is off will keep you safe from electrical hazards while cleaning your unit. This shutdown will also prevent your unit from turning on accidentally on randomly warm days, saving you money.
2. Clean Your AC Exterior Unit
Start with the big stuff. Remove dust and other debris from the outside AC unit by sweeping off leaves, small branches, or anything else on or around your air conditioner. The outdoor unit can accumulate dirt buildup, dust, and debris, which can reduce efficiency and cause the AC coils and cooling fins to become dirty. Hose off any bird poop, dirt, or stains, paying special attention to cleaning the cooling fins and AC coils, as dirt buildup here can significantly reduce system efficiency. Ensure that all items are removed from your unit to prevent future clogs. If the coils are particularly dirty, using an AC coil cleaner designed for outdoor units can help remove stubborn dirt and improve performance.
Rinsing the Unit
Once you’ve applied coil cleaner to the condenser coils, it’s time to rinse away any loosened dirt and cleaning solution. Use a garden hose to gently spray the coils and coil fins, making sure to rinse thoroughly but carefully. Avoid spraying water directly into the electrical components or the fan to prevent damage. For any stubborn dirt or debris left behind, use a soft brush attachment on a vacuum cleaner or a soft brush to gently clean the coil fins and condenser coils. This step will help remove any remaining dirt and ensure your unit is free of buildup that can reduce efficiency.
Drying the Unit
After rinsing, it’s important to dry the condenser coils and coil fins with a soft cloth to prevent water spots and ensure proper airflow. Make sure the entire condenser unit is completely dry before you restore power—this helps avoid electrical shocks or water damage. Once everything is dry, replace the top of the condenser unit and restore power at the circuit breaker or thermostat. Turn on your air conditioner and check for proper operation and cooling performance, ensuring your system is ready to keep your home comfortable and efficient.
3. Check out your AC Unit
Give your unit a thorough inspection. Check for bent fins on the coils and use a fin comb to straighten them if necessary. Be on the lookout for cracks, rust, or broken lines. Any leaks are a bad sign, as are cracks in any seals. Listen for strange noises coming from the compressor or other components, as these can indicate underlying issues. Look for the big stuff, but also consider having a heating and cooling expert, like the technicians at Heaney Plumbing & Heating, take a look. If the unit cannot be thoroughly cleaned or if you notice visible damage, call a professional to have the system properly cleaned and inspected. Stop by for an end-of-season inspection.
4. Support Your AC Unit with Extra Insulation
Pipes don’t do well in the winter. Add foam pipe covers to any exposed piping or wiring on your outdoor AC unit. Duct tape is your friend in holding the foam together. Taking this step will help prevent your pipes from cracking, which can lead to the need for a new AC unit.
5. Cover Your AC Unit
Cleaning is good, but don’t forget to cover your unit. This cover will protect your unit from damage caused by the elements during the winter months. Select a vinyl or plastic cover that is waterproof, ensuring your unit remains protected from cracks and other forms of damage.
Trust the Heating and Cooling Experts to Protect Your AC Unit
Follow the steps above to help keep your AC unit from being damaged in the offseason. Maintaining your air conditioner's components, including the evaporator coil and filters, is essential for optimal performance. By running through these maintenance steps, you can start your AC unit next year with peace of mind knowing everything is in order. As part of regular maintenance, be sure to clean or replace the filter and filters to maintain system efficiency and air quality. These maintenance steps should be performed at least once a year to ensure system longevity and efficiency. When you’re ready for further protection, consider Heaney Plumbing & Heating to inspect and maintain your air conditioning system. Our techs have the experience and training to keep your home comfortable year-round!