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How To Prep Your HVAC System For Summer

Q: How can I prepare my AC unit for summer?

A: With the warm weather on the horizon, it’s important to begin considering the health of your HVAC system. You likely haven’t considered the health of your air conditioning unit since the end of last summer, but now it is once again time to consider how well your unit is functioning for a summer of fun ahead.

Tips to prep your HVAC for summer

Save energy and extend the life of your AC unit with simple preperations and regular maintenance.

Here are some top tips from Deljo Heating, Cooling & Plumbing’s technicians to best prepare your home’s air conditioning unit for the hot summer months:

1. Change the Filters
Depending on your air filters, you should change them out every 1–6 months. A new filter can lower your energy consumption by 5–15%.

2. Clear the Air Vents
Ensure the registers are not being blocked by an items in your home such as drapes or furniture.

TIP: Air vents need at least 10 inches of clearance to do their best work, but the more clearance the better.

3. Inspect the Outdoor Condenser
Inspect the outdoor condenser and ensure there is nothing within 2 feet around the unit to allow maximum airflow.

TIP: Rinse off leaves and other debris with a garden hose.

4. Clean Up The Condenser Fan
Clean up the condenser fan according to the manufacturer’s recommendations.

STATISTIC: You could be wasting 30% of your AC unit’s energy if your air ducts are leaking.

5. Check The Ductwork
Ensure your air ducts are working to their full potential. Seal any leaks with alumninum-foil tape, remove obstructions, and call for assistance if you see any potential signs of mold.

6. Prep For Condensation Removal
Routine cleaning of your condensation drain line is crucial to prevent clogging.

7. Examine The Refrigerant Lines
Contact your maintenance provider if you are unsure how to properly identify and examine any leaks or issues with your refrigerant lines.

8. Comb the Coils
Use a coil fin tool to straighten the bent fins of your condensing unit for your AC unit.

TIP: Bent coil fins restrict air flow through the condensing unit and may cause issues such as decreating the unit’s efficiency and increasing usage of electricity.

9. Run Your AC Unit
Be sure to check your electrical circuits, power to the until, and outdoor wiring before powering up.



 

Change the Filter

First and foremost, you should change the filter of your air conditioning unit. Although it seems simple, this is one of the most important measures that you can take to reduce the need for AC repair in Ravenswood. Filters should be replaced on a regular basis to help circulate fresh, clean air throughout your home. If you need assistance finding the right filter for your system or if you’re due to order a new one, our team at Deljo Heating, Cooling & Plumbing is happy to help!

Clean the Condensation Lines

There is a pipe in your AC unit that carries condensation away from your unit that can easily get clogged. In the case that there is blockage, your unit itself will become backed up. This can quickly snowball into a serious problem resulting in the need for immediate AC repair in Ravenswood. Of course, if you need help locating this pipe, please call our team.

Clean the Coils & Fins

Throughout Chicago’s winter, your AC unit has been collecting dust and debris. It’s time to unclog that gunk to help your unit run more efficiently for the warmer months ahead. Simply take your garden hose and spray down the outside to clean the coils. For the fins, use a toothbrush and run it across each fin. The metal is thin and can be bent, so don’t apply too much pressure when cleaning.

Remove Surrounding Debris

Your unit needs to be clear of built-up debris in order for it to run at peak performance. Take a quick look at your unit and make sure there are not any surrounding plants, leaves, branches or long grass that have the potential of getting in the way of your unit’s airflow. We also recommend cutting the grass before turning on your unit. Ideally, you will check back on the unit itself at least once per month to make sure that new debris hasn’t accumulated.

Contact Our Team at Deljo Heating, Cooling & Plumbing

Our team at Deljo highly recommends regular HVAC maintenance to avoid the need for AC repair in Ravenswood at the most inopportune times. We are happy to look over your system before the weather gets warmer! Please get in touch with us today to see the Deljo Difference firsthand!

Client Testimonials

Read the opinions of our satisfied customers.

5 stars

This was my first time as a Deljo customer, and I was very pleased. My technician, Giovanni, was very thorough and diligent. He serviced my furnace and identified a faulty sensor that was causing the unit to shut itself down. Deljo ordered the part, and Giovanni replaced it a few days later. Overall, the team at Deljo was great. The dispatcher kept me informed about Giovanni’s arrival time, and the supervisor assisted Giovanni when he was diagnosing the problem with the furnace. I highly recommend Deljo.

Paul D. 10/15/2026

5 stars

I’ve used Deljo for over 10 years now and they always do a good job. Izzy was the technician for this visit and he did an excellent job with my winter maintenance on my multiple units in the household. He also addressed an issue while cleaning the furnace blower wheel. His communication was clear and concise with what he planned to do to address the issue quickly. He was confident and I had 0 concerns or questions. Great job Izzy!

Jeff S. 10/14/2026

5 stars

Paul was great! Arrived on time and completed maintenance on my humidifier, tankless water heater, and two furnaces. All work was performed under my Gold Star maintenance program, so all maintenance charges were covered. Paul did provide a few proposals for additional services on furnace & tankless water heater, but those were emailed to me for further consideration. Paul was friendly, knowledgeable, and answered all my questions.

Jack N. 10/12/2026

5 stars

Gabe did an excellent job with our annual service visit. He arrived in the early part of our service window, was friendly and knowledgeable, and got the work done in a very reasonable amount of time. I have great confidence in Deljo, and am a long-time customer.

Ruth C. 10/9/2026

5 stars

I’ve been using Deljo for 20 years for HVAC but now venture into enlisting their plumbing services. Bashar was very courteous, efficient & informative, and I’d definitely request him again for the next plumbing job. Great experience!

Christopher R. 10/2/2026

5 stars

Working with Deljo is always a good experience, and today’s appointment with Izzy was no different. He was able to come early which actually worked better with our schedules, but called me ahead of time to make sure that was okay. He was friendly and knowledgeable when he explained the work he had done during his visit and our options for fixes. He was also able to schedule a quote appointment for us while he was still here. We would highly recommend working with Izzy and the Deljo team!

Lauren H.  9/25/2026

5 stars

Drew performed the seasonal maintenance on my AC. It needed some repairs and updates and he was able to fix everything at the same appointment. He also noticed issues with the hot water heater and we were able to get ahead of that, as well.

Emily W. 9/11/2026

5 stars

I would leave six out of five stars if I could! My technician Jorge went above and beyond on his service. There was buildup in the rental property’s toilet from the previous tenant. One maintenance person did a surface level job of cleaning but did not fully remove the obstruction. Jorge went above and beyond and came to a solution and even explained the perpetual problems older toilet models can cause. Moving forward with this insight, I can perform my own upkeep the previous tenant did not. Thank you kindly!

Kayla K.  9/15/2026

5 stars

We just had our new boiler installed by Jonathan and Carlos. First rate work! They arrived on time, removed the old boiler, installed the new unit, and explained the features. Both guys were pleasant. Bring on the cold this winter! We are ready thanks to the team from Deljo.

Edward B.  6/26/2026

5 stars

Deljo’s heating and cooling team was awesome to work with. As a first-time homeowner, I really appreciated how clearly they explained everything and answered all my questions. From the quote to the install and follow-up, the service was top-notch. Highly recommend!

Lindsey A. Chicago, IL

5 stars

Matt did an amazing job. He serviced our home and our rental property. He gave us options to help our systems run more efficiently. He also told us about Deljo’s new plumbing inspection which was very affordable. He is great!

Jordan R. Chicago, IL

5 stars

We had a problem with our Humidifier and called Deljo. Jesus came out to help and was amazing. He was extremely knowledgeable, detail oriented, and super courteous. Amazing customer experience!

Jeff C. Chicago, IL

5 stars

Jordan and Jesus were extremely helpful and knowledgeable! We would 100% work with them and have them back. They were both very professional and efficiently fixed our heating system.

Emily L. Chicago, IL

5 stars

Shout out to Ernesto for coming out and servicing our furnace and air con. Deljo provides a great service and glad to trust them with our HVAC for our small business.

Lauren H. Chicago, IL

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