What To Know
- In this comprehensive guide, we’ll walk you through the step-by-step process of how to clean Lennox air conditioner evaporator coils like a pro.
- The evaporator coils are typically located in the air handler unit, which is usually found in a closet, attic, or basement.
- If the fins on the coils are bent, use a coil fins straightener to gently straighten them.
If you’re looking to keep your Lennox air conditioner running efficiently and effectively, regular maintenance is key. One of the most important tasks is cleaning the evaporator coils. Dirty evaporator coils can restrict airflow, reduce cooling efficiency, and lead to higher energy bills. In this comprehensive guide, we’ll walk you through the step-by-step process of how to clean Lennox air conditioner evaporator coils like a pro.
Why Clean Evaporator Coils?
Evaporator coils are located inside the air handler unit of your air conditioner. They absorb heat from the air, which is then released outside. Over time, dust, dirt, and other debris can accumulate on the coils, blocking airflow and reducing their ability to absorb heat. This can lead to a number of problems, including:
- Decreased cooling efficiency
- Higher energy bills
- Reduced airflow
- Frozen evaporator coils
- Premature failure of the air conditioner
Tools and Materials You’ll Need
Before you begin, gather the following tools and materials:
- Screwdriver
- Coil cleaner
- Soft brush
- Wet/dry vacuum cleaner
- Coil fins straightener (optional)
Step-by-Step Cleaning Instructions
1. Safety First
Turn off the power to your air conditioner at the breaker or fuse box. This is essential for safety, as you’ll be working with electricity.
2. Locate the Evaporator Coils
The evaporator coils are typically located in the air handler unit, which is usually found in a closet, attic, or basement. Remove the access panel to expose the coils.
3. Clean the Debris
Use a soft brush to gently remove any loose dust or debris from the coils. Be careful not to damage the delicate fins.
4. Apply Coil Cleaner
Spray the coil cleaner onto the coils, following the manufacturer’s instructions. Allow the cleaner to soak for the recommended amount of time, typically 15-30 minutes.
5. Rinse the Coils
Use a wet/dry vacuum cleaner to rinse the coils thoroughly with water. Be sure to remove all of the cleaner residue.
6. Straighten the Fins (Optional)
If the fins on the coils are bent, use a coil fins straightener to gently straighten them. This will help improve airflow.
7. Reinstall the Access Panel
Once the coils are clean and dry, reinstall the access panel.
Additional Tips
- Clean the evaporator coils regularly, at least once a year.
- If you live in a dusty or humid environment, you may need to clean the coils more often.
- If the coils are heavily soiled, you may need to use a stronger coil cleaner.
- Be careful not to overspray the coil cleaner, as it can damage the coils.
- If you’re not comfortable cleaning the evaporator coils yourself, you can call a qualified HVAC technician for assistance.
Troubleshooting
If you encounter any problems while cleaning the evaporator coils, here are some troubleshooting tips:
- If the coils are frozen, turn off the air conditioner and let it thaw completely before cleaning.
- If the coils are badly damaged, you may need to replace them.
- If you’re still having problems after cleaning the coils, call a qualified HVAC technician for assistance.
Frequently Asked Questions
1. How often should I clean my Lennox air conditioner evaporator coils?
At least once a year, or more often if you live in a dusty or humid environment.
2. What type of coil cleaner should I use?
Use a coil cleaner that is specifically designed for air conditioner coils.
3. Can I use a garden hose to rinse the coils?
No, as this can damage the coils. Use a wet/dry vacuum cleaner instead.
4. How can I prevent my evaporator coils from getting dirty?
Change your air filter regularly and keep the area around your air conditioner clean and free of debris.
5. What are the signs of dirty evaporator coils?
Reduced cooling efficiency, higher energy bills, reduced airflow, frozen evaporator coils, and premature failure of the air conditioner.
