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Set to Cool but Blowing Hot: Air Conditioning IssuesIf your HVAC settings appear to be correct, why in the world is your air conditioner blowing hot air? The most basic function of an A/C is to deliver cool comfort, so if you’re feeling a warm blast from the vents instead, something’s definitely amiss. It may be a simple matter you can resolve yourself or it may require diagnosis by a qualified technician. Here are some scenarios that might be at fault if your HVAC settings are blowing hot air instead of cool.

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HVAC system , air conditioner , air filter , refrigerant , thermostat settings , hvac settings

Things Homeowners Should Know About RefrigerantWhat do you know about refrigerant? You're probably aware that there is refrigerant in your air conditioner, but you may not know much more about it than that. Understanding what refrigerant does, why it's important to handle it properly and changes in rules regarding the use of different types of refrigerant can help you save money by avoiding problems. Here are some things to know about refrigerant.

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refrigerant , A/C , safety , to know

HVAC Basics: Understanding RefrigerantIf you're like most homeowners, you have only a vague understanding of how your central air conditioner works. As long as it's keeping your home cool during a hot Indiana summer, it might as well be magic. But realistically, having a basic understanding of the refrigeration process at the heart of air conditioning will help you troubleshoot problems with your A/C and make you a better informed consumer when shopping for a new cooling system.

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New Haven , HVAC system , Fort Wayne , indiana , refrigerant , HVAC , what is refrigerant

What Should an HVAC Pro Check During Regular A/C Maintenance?When's the last time you scheduled a preventive maintenance tune-up for your home's central air conditioning system? If you can't remember, or it's been more than a year, you should schedule an A/C maintenance visit as soon as possible. Your system has likely lost efficiency and may be under-performing, while small problems that haven't been addressed may be developing into larger ones. Most HVAC experts recommend annual service on your central A/C and semi-annual service for heat pumps.

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New Haven , Fort Wayne , air conditioner , air filter , indiana , refrigerant , A/C , HVAC Technician , a/c maintenance

How to Determine What A/C Noises Mean in Your Fort Wayne HomeSummers in Fort Wayne can be brutal, and having a functioning central air conditioner makes your home a nice retreat from the heat and humidity. Knowing when you have a problem with your cooling system will keep your home cool this summer. This means listening to the different A/C noises that come out of your equipment, and understanding what they mean.

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New Haven , HVAC system , Fort Wayne , air conditioner , indiana , refrigerant , ductwork , a/c maintenance , A/C noises , humidity , cooling system , A/C condensing unit , refrigerant level

How Does Air Conditioning Work? The More You Know About Yours, the BetterAlthough about 86 percent of American homes have air conditioning, few people know how their system works. Knowing a little about how your air conditioner keeps your Fort Wayne area home cool during the long, hot summer can help you troubleshoot common air conditioning problems, as well as effectively communicate with your service technician when repairs are needed. 

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New Haven , Fort Wayne , indiana , preventive maintenance , refrigerant , air conditioning , compressor , lower utility bills , evaporator , condenser , air conditioning problems

A Safety Cap For Your Air Conditioner: Without It, Your Childproofing Isn't FinishedKeeping your air conditioner safe from theft and tampering is an ongoing concern, especially for homeowners with large outdoor cooling units. Copper and valuable metal has often been stolen from cooling systems, but current trends suggest a new target for thieves: the refrigerant in the system.

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New Haven , IN , Fort Wayne , air conditioner , indoor air quality , preventive maintenance plan , routine manitenance , refrigerant , air conditioners , Safety Cap

A/C Basics: Selecting The Right System To Maximize Comfort And SavingsPurchasing an air conditioner doesn't happen very often, which is one reason it's such a big decision for homeowners. If you have never installed a new cooling system, it helps to start by learning a few A/C basics. Knowing how an air conditioner works can help you select the system that makes the most sense for your home.

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New Haven , IN , Fort Wayne area , Fort Wayne , energy efficiency , air conditioner , indoor air quality , A/C basics , refrigerant , HVAC contractor , efficient cooling

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"Josh was very courteous and professional. He took the time to explain to me and show me what was going on inside the furnace. I felt really bad that we needed to call him out on a Sunday but with the inside of the furnace iced up our air just wasnt working and he got us up and running in no time"

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"Outstanding service from start to finish. I had an outside spigot dripping, I was afraid with the cold weather it would freeze up. Called and Roger was able to fit me in within a few hours. I have used Hartman Brothers for over 30 years for my heating and central air systems. Happy that I can call them for plumbing issues as well."

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"I had an excellent experience with Hartman Brothers from start to finish. After dealing with an incomplete and frustrating repair from Peterman Brothers, Hartman Brothers was a breath of fresh air. Their technician spent several hours thoroughly troubleshooting my tankless water heater, walking through the issues clearly and professionally. There was no upselling, no pressure, and no shortcuts—just honest, methodical work. Based on their findings, I chose to upgrade to a new tankless water heater, and the decision was entirely mine. At no point did they try to push a sale or steer me toward anything unnecessary. The installation was clean, the communication was excellent, and the entire process felt transparent and trustworthy. It’s clear why they have such a strong reputation in the Fort Wayne area. Their professionalism, responsiveness, and genuine customer‑first approach really stand out. I’m very happy with the new system and with the service I received. "

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"Very friendly and quick service, even on short notice. We will be able to sleep comfortably tonight with our fixed air conditioner! Thank you, Hartman Brothers!"

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"Our technician arrived as scheduled, was courteous at the door and asked if it was OK to come into the house, after which he put his booties over his work shoes. He (I wish I knew his name) seemed to complete his tasks efficiently, cleaned up his workspace and gave a thorough rendition of the condition of our AC unit. I appreciated his work and glad that we had the service contract. Great Job!"

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"Always great! Friendly. Efficient. Respectful of house. Obviously experienced and good at what he does."

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"I've used Hartman Brothers for all my HVAC needs across multiple properties and they are always responsive and timely. Dalton was my technician and demonstrated a high degree of both professionalism and helpfulness. Vicky is their jack-of-all trades office and scheduling manager. She always does a phenomenal job and makes you feel valued as a customer in every interaction. You can't go wrong with this company. Strongly recommended!"

— Spencer Lulling
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"Hartman brothers has always given me great service. I feel comfortable knowing they are taking care of my heating and ac needs. Everyone is responsible, and I am very comfortable with all of the techs taking care of my maintenance even when I'm not home."

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