Join Our Cozy Club  
$69 Pre Season Heating System Check

Step by Step Guide if Your AC Stops working


When your AC stops working, your first inclination might be to panic, especially if it stops working in the height of the summer and you know that you are going to be sweltering in a couple of hours if you do not get it working again.

And while a broken AC system is a cause for concern, this is not the time to panic.

Here’s exactly what you should do if your AC stops working:


  • Reset Breakers 
  • Check batteries in thermostat
  • Clean the air filters 


Step #1 Clean your air filter

There are some parts in any air conditioning unit that are designed to be replaced.

Its air filter is one of those parts. As one of the most integral parts of your entire system, it needs to be cleaned or replaced at least once a year.

Before you run out to buy a new one, pull out the old one and see if it just needs to be cleaned.

Your air filter prevents dust, pollution, and pollen from being cycled in your home.

Overtime, all of that dust, pollution, and pollen that it protects you front builds up on its surface and it becomes harder and harder for your system to push air through that filter.

Eventually, it might become so difficult that your system simply stops working.

You should be able to locate the filter in your system relatively easily.

It will usually be right in front of a vent or right behind the air intake. Depending on how your system is set up, you might have more than one filter that needs to be cleaned.

Just as a note, if your filter has a cardboard frame, this means that it is probably disposable and should just be replaced.

Take the filter out and move to an open space where you can clean it.

Use a wire or horsehair brush to remove anything caked on the surface.

Then, use your vacuum to get rid of any other loose dirt and dust.

Finally, spray it gently with water. Let it dry completely before putting it back in your system.

 Air Conditioning Repair

Step #2 Change the batteries in the thermostat

Your thermostat, not your air conditioner itself, might actually be the problem.

If it is programmable, it is possible that your thermostat has simply stopped communicating with your AC system and that is why it will not turn on.

Luckily, this is one of the quickest and easiest fixes for most AC problems.

First, locate your thermostat.

Gently remove the housing from its plate.

You might be able to pull it right off, or you might need to slide it up in order to be able to take it off all the way.

You should now be able to see the interior of the thermostat.

In some models, the batteries might already be visible, but in others, you might need to pull apart the housing a little bit more in order to be granted access to the batteries.

Remove the old batteries and slide new ones into their place.

Make sure that you are putting the batteries in with the right orientation, otherwise, your AC system still will not work.

Once you have secured the new batteries, slid the housing back onto the wall plate and reinsert or replace any pins or screws that you had to remove to get it off of the wall.

If you have a digital thermostat, it should tell you if its batteries are low.

If, however, the thermostat is not working at all or is not digital, it is still a good idea replace the batteries, just in case this solves your problem.

Step #3 reset the breakers

If your AC was working and suddenly stopped working, it may be because you have tripped a breaker.

Breakers are designed to prevent one circuit in your home or office from being overloaded, and because an air conditioner can put a lot of strain on your electricity, this is a very common cause of malfunctioning AC units.

Your first step is to find the breaker panel.

In many homes, it is in the garage or basement, in many businesses, it is in a supply cupboard.

Once you have found the panel, open it up and turn off every single breaker, one by one.

Once all of the breakers are off, reset the main breaker.

In some homes and offices, it might actually be outside by the meter.

Turn the switch off and on twice, leaving it in the on position, in order to reset it.

Then, turn each of the breakers in the panel back on, one at a time.

This should restore any power that might have been cut to your AC unit. If this was the issue, you should hear it start up again.

Often, doing one or all three of these things will reset your air conditioning unit and it will start working again.

Sometimes, you will only need to replace the batteries in the thermostat or clean the filter and you won’t have to worry about an inspection or repair.

However, if none of these steps have restored your air conditioning, it is time to call us.  We specialize in AC repair, making it fast and easy for you to get your building cooled again.

We Offer Nice & Friendly Service!

Serving Springfield, VA &
the Surrounding Areas
See All
Why Choose NICE?
Professional Service for All Makes & Models
100% Satisfaction Guaranteed
Nice, Neat & Knowledgeable Technicians
On-Time Arrival
Angie’s List Award Winner – 7 Years Straight!
Join Our Cozy Club
Maintenance Plan!
It’s the NICEST way to gain comfort.

Customers With a NICE Experience

Customers With a NICE Experience

John G.

“Five stars--could not be happier!  Josh and Kyle were very professional, provided several options to improve performance of HVAC, no pressure or time constraints, worked efficiently, were able to explain in clear terms what they found, including when items were performing in fine fashion and nothing needed to be done.  Thanks for a happy camper”


“Service was outstanding from the time of arrival which you could track arrival time live on a website link they send you so you know when they will arrive. Technical knowledge was very high, quick and efficient Kyle and his partner both handled the install of a Sensi Predict as if it was a walk in the park. I highly recommend Kyle from Nice Heating & Air for all HVAC issues and for new installs, him and his team are an amazing company and will think of them first if any issues arise in the future for sure....”

Andrew Baker.

“Professional and polite. Excellent communication throughout the maintenance visit. Definitely recommend.”


“Rolando Medrano was very professional and followed the CDC protocol of 6 feet social distance and had a mask and put disposable shoe covers before entering the house. He made sure to address all of our issues and provided answers for all our questions. He came on time and called before he came to update on timing and his status! He was a great help!”

Mike Richardson.

“Highly recommend Nice Home Services for your HVAC needs. Have been member of their annual maintenance plan for three years now and been extremely pleased with their approach to business. They are professional, knowledgeable, and relatable. The service specialists take their time to fully diagnose the issue and explain the situation in a way that is easy to understand. Never had an instance where they try to push product and instead look for ways to recommend how to save you money. Need anything done on your home's HVAC, call the folks at Nice Home Services and know you're making the right choice.”

Zora G.

“Love , Love the NICE Heating & Air company for their kind & trustworthy technicians, their unbeatable price & overall knowledge they’ve amazed me every time with their fabulous job on my house, I’ll recommend them without hesitations, try this company you won’t regret for sure.”

Richard Nowinski.

“Dionte and his helper (Josh) did a superb job with the installation. The result is both functional and as cosmetically pleasing as the ideal water heater installation can be. They were VERY careful moving the old one out and the new one in so as to assure no damage was initiated neither to the heater nor to our dwelling. He explained his intended design prior to execution and executed it flawlessly. This was followed by a comprehensive explanation of the functional options available through the control panel and Ipad app. Cleanup at conclusion of the install was appropriate and comprehensive. This team represented both Nice Heating and Rheem VERY positively!”

Kimberly Mason.

“I had the pleasure of meeting another NICE Heating and Air Service Technician today, Mr. Jeremy Castellon. Jeremy, thank you again for addressing my questions and concerns regarding my gas fireplace. I appreciate your patience and knowledgeability about gas fireplaces. Jeremy was very professional and competent.”

Terence Lartey.

“The technician was very professional and took his time to explain the issue and how he will about to fix it. He also offered means to save by signing on their maintenance program. He was polite, careful to keep the carpet clean. I will recommend this company to friends and family.”

Roberta Massiah.

“Loves me some NICE Home Services! I’ve been part of their maintenance plan for almost 9 years now & they're great. Reliable, professional, & friendly; they take care of all my HVAC & gas fireplace needs m, including a spring & fall tuneup. Highly recommend!”

Barb N.

“I purchased my HVAC unit a year ago along with a Cozy Club maintenance plan. It's been running great and the customer service team is always quick to respond to questions. Today Rolando M. came by for the maintenance check and, as usual, he was neat, professional and maintained the COVID rules. He was also very nice, living up to the company name. I'm very happy with my experience with Nice.”

N. England.

“I can't speak highly enough of this company. I requested an appointment, and it was scheduled for the next day. The technician was polite, honest, and a pure delight to work with. He didn't try to overcharge or tell me to replace something I didn't need to. He made service recommendations that were in line with industry standard prices so I could make an informed decision as he went about his service visit. Would recommend and will be using them again in the future. ”

Lucas W.

“My technician arrived promptly at our appointed hour. He repaired a dirty and non-working gas fireplace. In addition, he found a small gas leak on our furnace line. Overall, exceptional service and quality work. I highly recommend their HVAC service.”

Rona G.

“Very impressive company! Nice responded to my call for a heating issue on very short notice. My tech, was right on time, extremely polite, and very hardworking. Customer service and satisfaction are clearly a priority.”

Kenny D.

“They treat customers like a valuable asset, not like a number. Business the old-fashioned way, that will never go out of style.”

Lois S.

“Superb customer service. Before a service appointment, you receive a text message notification with photo of the tech that will be at your residence followed by a phone call. During a service appointment you'll updated and educated. If there is a concern, management will contact you promptly and follow up until issue resolved. Awesome and attentive team!!”