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What a Humming Air Conditioner is Trying to Tell YouNormally, a properly functioning air conditioner makes occasional pops, hisses, rattles, and a quiet hum that shouldn't be a cause for concern. However, if you notice a loud humming or buzzing noise, your unit is probably malfunctioning. Several issues can cause a humming air conditioner. Let's take a closer look at them along with their solutions.

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HVAC system , air conditioner , air conditioning , a/c problems , HVAC problems , HVAC unit , humming

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"We purchased our home just a few days ago and the heat was not working, and we were in single digit temps in this area. Josh, our tech, came out and checked everything out and discovered it was a programming issue on the digital thermostat. He set it correctly and heat is now working. The level of service of Hartman is phenomenal! Vickie in the office deserves a big thank you as the house was at 45 when I called and she saw to it that we were worked into their busy service request schedule."

Judith Botts
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"I have called Hartman Bros twice for problems with my home air conditioning. Both times I felt that the pricing was fair. I appreciate that they seem to start with trying to repair and not jump to replace."

Stephanie S.
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"Great Heating and Air Company to work with who are always professional, courteous, fairly priced and even help in a timely manner when things break at the most inconvenient time."

Melissa Philebaum
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"The serviceman was on time, did a very thorough job, and helped me with a couple of other small issues with the thermostat and A/C at the same time."

Lynn P.
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"Great pleasant staff from the initial phone call to the service tech! Friendly, knowledgeable, and conscientious."

Kimberly B.
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"Hartman Brother Heating & Air is the BEST!!!! When I have an issue they immediately come to help! There employees are very friendly, kind and courtious of your home. They are well trained and have the knowledge to fix the problems in a timely manner! Way to go Hartman Brothers!!!"

Julie Chesney
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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!"

Michael R.
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"Caleb performed an excellent job in servicing our furnace. He explained all that was done and asked me if there were any questions. He was thorough in his explanation, there were none. He was respectful and kind to my service dog."

Frank C.
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