Is it OK for my AC to run all day?

• <div><p>If you have central air conditioning, it’s fine to <a href="https://www.angi.com/articles/how-long-ac-can-run-continuously.htm">run your AC all day</a> if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time. </p></div>

How many hours should the AC run per day?

• <div><p>On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours. </p></div>

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Q: Is an AC unit with a higher SEER rating worth it?

• <div><p>If you&rsquo;re planning an AC replacement, choosing an AC with a higher SEER rating may save you money in the long run. Tax credits could cover as much as 30% of the job, and you&rsquo;ll notice smaller utility bills (particularly if you live in a hot climate where you need to constantly run the AC). Generally, you can expect to pay between <b>$350 and $1,500 </b>for each SEER rating increase. Weigh the cost against your typical utility bill to figure out what&rsquo;s worth it to you.</p></div>

Q: Is it OK for my AC to run all day?

• <div><p>If you have central air conditioning, it&rsquo;s fine to <a href="https://www.angi.com/articles/how-long-ac-can-run-continuously.htm">run your AC all day</a> if that&rsquo;s what you want&mdash;as long as the AC unit is in good condition. But if your AC runs constantly when you don&rsquo;t want it to, there may be a problem with your system (like the ones we&rsquo;ve mentioned above). Window AC units and wall air conditioners aren&rsquo;t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time. </p></div>

Q: Why is my house AC constantly running?

• <div><p>If your AC runs constantly, it could be due to a number of things, including a <a href="https://www.angi.com/articles/why-my-thermostat-acting-weird.htm">faulty thermostat</a>, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.</p></div>

Q: How often should an HVAC system be serviced?

• <div><p>At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule&mdash;once in the spring for the cooling system and once in the fall for the heating system&mdash;is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.</p></div>

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Verified Reviews for Heating And Air Conditioning Service pros in Oblong, IL

*The Angi rating for Heating And Air Conditioning Service companies in Oblong, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Oblong, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on February 01, 2025

Reviewed in February 2025
?I recently hired Legacy Residential LLC for a complete bathroom remodel, and I couldn't be happier with the results. Their attention to detail and dedication to quality exceeded my expectations. The team was professional and kept me informed throughout the entire process. Definitely, my...
Legacy Residential LLC
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Reviewed in July 2024
I had old asbestos insulation in a new house that we were moving into that we wanted removed and replaced. Dakota was quick to respond, come out to do a free quote, schedule and execute. I was worried that it would be expensive due to it being hazard cancer causing materials. But he had...
D.L.R Insulation
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Reviewed in September 2023
They leveled my driveway and layed in rock. They did a great job and I would recommend they to anyone and they had a great price
Yager Services
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Reviewed in July 2022
Quick response and easy to work with. I would definitely hire him again!
Hubbart's Appliance Service
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Reviewed in June 2022
Very neat and tidy, quality work and very friendly. Mark is a great guy
Five Star Painting of Punta Gorda
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Reviewed in December 2021
He was outstanding and did a great service. He was very honest and knowledgeable about what he did. He went above and beyond. He had an affordable pricing. He was very easy to work with and had a great communication.
Moore excavation
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Reviewed in August 2021
They were very friendly and on time..
Pest Solution Incorporated
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Reviewed in May 2021
Josh from Tepen Electrical, was knowledgeable, Professional, courteous and fair. He completed the job (rewire home,outlets,fixtures) within the projected time and budget, while exceeding in quality and efficiency. Thank you Tepen Electrical.
Tepen Electrical
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Reviewed in April 2021
Clean, efficient, and very friendly
Kapper Construction Warehouse
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Reviewed in November 2020
They go above and beyond what you have asked and they do an excellent job. The pricing was great.
BZ Trees - Pradia Facebook
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Find Heating and air conditioning pros in Oblong

Serving Oblong, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Emergency services offered

"Isaiah gave a thorough inspection of my HVAC. He found several deficiencies in my furnace. Gave me a good price for a new HVAC. Will get back with him when I am ready to proceed."

Response time1 day

11 neighbors recently requested a quote

Recommended by95%of homeowners

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Pittman heating and cooling llc

5.0(

)

Serving Oblong, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"We did a remodel and Scott installed brand new Heating And Cooling for the home. This was in 2020. I’ve used them for many other projects since then, he comes highly recommended!"

6 neighbors recently requested a quote

Serving Oblong, IL and surrounding areas

Approved

In business since 2018

Emergency services offered

Small jobs welcome

"Correctly quickly and innovative would be what to expect when hiring Tepen Electric."

Response time6 days

13 neighbors recently requested a quote

Recommended by87%of homeowners

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Amped Up Home Solutions

5.0(

)

Serving Oblong, IL and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

My name is Carson Thrasher. I’ve grown up around the Sullivan area and this is home. I have been around the electrical field for since 2018 when I graduated college. I’ve worked as an electrical engineer for a few years and started my business in 2023. I quit my job in November of ‘25 and am working the business full time. I have five start ratings on Google and strive to maintain a good line of communication with my clients. Honesty and integrity are key in my world and I ensure that as a customer of Amped Up Home Solutions you will receive just that.

5 neighbors recently requested a quote

Serving Oblong, IL and surrounding areas

Approved

In business since 2002

Free estimates

Credit card accepted

Service Tek, Inc., provides full-service heating and AC installations and repair work to the Olney area. We are highly trained in today's efficient product lines. We also install thermal units.

Recommended by100%of homeowners

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Next Phase Power LLC

New to Angi

Serving Oblong, IL and surrounding areas

Approved

My name is David Michl, and Next Phase Power LLC is built on 20 years of hands-on electrical experience across residential, commercial, and industrial work. From home wiring to underground PVC trenching for services, fuel stations, and farms, I understand how important reliable power is to everyday life.\nProudly serving Jasper County, Effingham, and surrounding communities with dependable service, honest work, and quality craftsmanship. Fully licensed and insured, competitive pricing, and free estimates. Feel free to call or text anytime, and don’t forget to leave a review here or on our Facebook page. Thank you for your support!

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Daniel Wallace

New to Angi

Serving Oblong, IL and surrounding areas

Approved

I’m a hardworking person who doesn’t like to leave projects half finished or looking sloppy, I can be a bit of a perfectionist. I’ve always fixed and built almost everything I needed myself and I take pride in being self sufficient. I’ve been an electrician for a year and half now and before that I was fabricating aerators for private residences. I have a wife and two children, so I can handle the chaos of a whole house remodel even if you decide to alter any details halfway through.

Serving Oblong, IL and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"I was very impressed with Rich throughout the entire process of working with him. He gave us the best price for the same appliances the other companies were going to install. Rich was the only one who actively followed up and answered all of my questions prior to hiring him. When we did hire him, he arrived on schedule and completed the job on schedule as well. I was very impressed with his professionalism. I would recommend Rich to anyone in the market for a new HVAC system. I will hire him again for maintenance and other HVAC needs."

+37

Recommended by93%of homeowners

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SUPER HEATING & COOLING

4.6(

)

Serving Oblong, IL and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Super HVAC showed me what I needed to do to make my A/C more efficient. Spent about 20 minutes at my house and refused payment for his time. He said he did nothing and so he charged nothing. I even stated that he spent time there, but he would not accept payment.
What a wonderful attitude and one that will make me recommend them to anyone looking for HVAC. I certainly will call them when I get ready to make any HVAC changes in the future.
"

Recommended by91%of homeowners

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Aire Serv of Terre Haute

5.0(

)

Serving Oblong, IL and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"He is one of the best HVAC guys I have ever seen, he is very honest in everything he does, and he sells number one place of equipment. he is also a hard worker and is a very straight forward person. He has worked over 100 properties for me and does rock solid work."

Response time10 hrs

Recommended by100%of homeowners

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Showing 1-10 of 32

Heating and Air Conditioning questions, answered by experts

If you’re planning an AC replacement, choosing an AC with a higher SEER rating may save you money in the long run. Tax credits could cover as much as 30% of the job, and you’ll notice smaller utility bills (particularly if you live in a hot climate where you need to constantly run the AC). Generally, you can expect to pay between $350 and $1,500 for each SEER rating increase. Weigh the cost against your typical utility bill to figure out what’s worth it to you.

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

On a summer day, expect your AC to run between 12 and 16 hours. However, this time frame depends on just how hot it is outside and the comfortable temperature you’re hoping to maintain indoors. Assuming the size of your AC is appropriate for the space you’re trying to cool, it shouldn’t be a problem for it to work this many hours.

If your AC runs constantly, it could be due to a number of things, including a faulty thermostat, incorrect temperature settings, or broken equipment. Alternatively, you might have an airflow problem (for example, blocked vents or leaky ductwork). Either way, an HVAC pro can identify the specific problem and fix it for you.

At a minimum, an HVAC system should be serviced once per year. However, a twice-a-year service schedule—once in the spring for the cooling system and once in the fall for the heating system—is often recommended, especially for older systems, heat pumps, or in climates with extreme temperatures. Regular service, which includes inspection, cleaning, and maintenance, ensures the system runs efficiently, helps prevent costly breakdowns during peak seasons, and can extend the unit's lifespan. You can also schedule a service if you notice issues like poor performance or strange noises.

The Oblong, IL homeowners’ guide to heating and air conditioning services

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Adding Central Air to Your House: Can You Install AC in Your Home?
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