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1812 W Griffin Parkway, Suite B, Mission, TX 78572

(956) 955-6340


Every air conditioning system has a filter designed to keep dust from entering both your home, and the system. A clean air filter is vital to keeping your system in good condition, helping it last longer, and helping your air stay cleaner. What happens if you don’t have a filter? Can you still run it while you run to the store for a new one?

The good news is that yes you can run the AC while you nip out to the store. This doesn’t mean you can run the AC permanently without a filter and just sweep your home more often. An air conditioner can run for no more than 6-8 hours without a filter and not become damaged. Anymore than this, and you could be setting up your system for serious damage.

How air filters work

In order for your HVAC system to keep your home cool, it takes warm air in through the supply vent. The unfiltered air is then drawn up using fans, and pushed through the air filter. The air filter traps dust and other contaminants that will both pollute your home and damage the system. The air is then cooled via refrigerants that release hot air outside the home, and the cooled, cleaned air is delivered to you through the registers.

This system works well, but a dirty or missing filter can cause problems for you and your air conditioner. Here’s what can happen if you run the AC without a filter for too long.

It can damage your machine

The air filter isn’t just there for you to breathe easier. It’s also there to keep dust out of your HVAC, which can become damaged if it is forced to run with dust clogging up its machinery. Among other things, this can lead to a damaged compressor, frozen evaporator coils, or even actual damage to the coils.

Replacing these parts can be very expensive. A damaged compressor can cost as much as $3,500 to replace, hurting you a lot more than the price of an air filter would have. Even if the compressor or coils don’t need replaced, damage to the air conditioner can typically leads to other problems.

Common problems with the air conditioner include increased electric bills, the AC not cooling the home well, or even not cooling the home at all.

It leads to poor air quality in the home

This is perhaps a bit more obvious, but without the air filter to filter the dust out, your AC will now be spewing dust all over your home instead. We spend 90% of our time indoors, and air quality can have a very big impact on the quality of your health.

Dust going through your system also means more dust entering your electronics and potentially damaging them, settling on your furniture, and a lot more cleaning.


Air Conditioning Service, HVAC Service, AC Service & AC Service Near Me Mission, TX, Penitas, TX, La Joya, TX, Sullivan City, TX & McAllen, TX

Air Conditioner Service in Mission, TX | Air Conditioning Service Penitas, TX

Air Conditioner ServiceAC Repair Services ∴ McAllen, TX ∴ La Joya, TX ∴ Penitas, TX

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The action of helping or doing work for someone. “At Frontier we have the passion to serve others above and beyond their expectations.”


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To admire (someone or something) deeply, as a result of their abilities, qualities, or achievements. “We treat everyone with dignity and respect while remaining consistent and humble.”


The quality of being trusted and believed in. “We build trust on credibility; and our credibility is built on truth and action.”

What people are saying
Customer Reviews

Very, very happy with Frontier services, our a/c unit went oit all of a sudden and we were needing to replace the entire unit, and not only did they give us a great price and customer service but they wen out of their way to send out technicians on a Saturday to provide immediate service. Technicians were great and very informative on the unit and any questions I asked. So thank you Frontier for your services.

Layoz M

Justin was on time and very informative. Fixed the problem in less than 2 hours. Thank you Justin. Called on Friday afternoon and was there first thing Saturday. Replaced the fan motor and now we are cool again.

Barbara Y

I have had great service with Frontier AC. My AC is running smoothly and my anti microbial system is working great. Rigo came out today and service my AC today and was friendly and professional. Thanks Frontier.

Carol P

Love this company got a whole new system with them works amazing. And if you need any assistance for service, question etc. They go above and beyond to provide fast quality service. Highly recommend Frontier.

Reynaldo B

Called for service and the tech was at my door in about an hour! Victor was very professional and explained his processes, repairs and suggestions thoroughly. He got our unit up and running in no time! I will definitely stick with Frontier for any future services.

Anna C

We have always had excellent service from Frontier. They always arrive within time window. Their technicians are very knowledgeable, efficient and clean up after themselves. Robert was great about explaining everything he had done and suggested additional service that should be performed.

Bob L

Rigo did a great job for me. One of my own repairs blew a fuse within my air conditioner. Rigo figured out the problem, replaced the fuse, and explained everything to me so that I don’t make the same mistake again. I’m very impressed with his knowledge and friendly nature.

Brian G

Justin Siguenza of Frontier AC just left my house after providing bi-annual services. He is a very professional tech and I was also impressed with his friendliness. I hope to see him again in six months.


I was very pleased with my experience with Frontier Air Conditioning. From the first phone call after my old AC failed until my new AC was installed everyone were friendly and professional. I recommend them for your AC and heating needs.

Keith T

Very good job Rigo the tech did. Very thorough and professional attitude. Will use their services whenever I need them again. Excellent service. Another satisfied customer. Keep up the good job.

Jay T

Every team member at Frontier were fantastic! They were patient and answered all questions and concerns leading up to the day of install. For the install, the crew arrived on time and finished on time as promised. The install crew were professional, courteous and left the job spotless. Absolute professionalism from begonia to end. Thank you!

Matthew B

Great service and the owner is very knowledgeable. He took time to answer any question I had. The technicians were very polite and professional. I would definitely recommend Frontier to anyone.

Oscar M

I have been a customer for awhile now and there’s a reason for that. Thank you for taking care of my 3 A.C. / heater systems. Justin came to do maintenance today and he did a great job. Appreciate everyone’s help..begins with Susan and her friendliness to Jay and Victor whom are also very friendly and helpful. Thank you to all!

Anita R



Rio Grande Valley Proud

(956) 955-6340

AC Repair Services

Air Conditioner Service

McAllen, TX

Penitas, TX

La Joya, TX

Mission, TX

Sullivan City, TX