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HVAC Tips from John Davis Heating and Air

John Davis Heating and Air technician smiling beside an outdoor AC unit during a tune-up with gauges connected
Maintenance

How Often Should I Have My Heating and AC Serviced?

Twice a year: once in spring for your air conditioning, and once in fall for your heating. Here's what a tune-up includes, how to tell a good one from a quick look, and how the JD Air Care Plan fits in.

By John Davis & Team • October 2, 2026
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Frozen AC compressor covered in ice inside an outdoor unit, a common reason an AC runs but doesn't cool
Troubleshooting

Why Is My AC Running but Not Cooling My House?

It's running, you can hear it, but the house won't cool. Here's how an air conditioner actually moves heat, what to check first, what each symptom points to, and when to turn it off and call.

By John Davis & Team • October 7, 2026
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Troubleshooting

Why is my AC freezing up in a Georgia summer?

This article is on the way. Check back soon for more HVAC tips from our team.

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Air Filters

How often should I change my air filter, and what MERV rating is right?

This article is on the way. Check back soon for more HVAC tips from our team.

Coming soon