Spring AC Tune-Up Checklist Before May Heat (DIY)
10-step DIY spring AC tune-up — what an HVAC tech does on a $150 service visit, minus the upsell. Hose, screwdriver, multimeter, and 60 minutes prevent the July breakdown.
DIY HVAC repair guides, industry news, product spotlights, and expert tips from the team at Open To Public HVAC Parts in Dallas, TX.

10-step DIY spring AC tune-up — what an HVAC tech does on a $150 service visit, minus the upsell. Hose, screwdriver, multimeter, and 60 minutes prevent the July breakdown.

Capacitors are the #1 reason AC units fail in DFW. Why heat kills them faster than spec, how to test one in 5 minutes, and how to replace it yourself for $25 instead of $400.

AC failure is predictable in DFW. Here are the parts that fail first, why Dallas heat kills HVAC equipment faster, and 5 things to do this spring to prevent the July breakdown.

Your blower motor is the part that pushes conditioned air through your ductwork and into your rooms. When it stops running, you’ll notice right away — the AC or furnace turns on, but no air comes out of the vents. Before you call a technician and spend $300 or more on a service call, there…

¿Prefiere leer esto en español? Vea esta guía en español → The wrong capacitor is the most common part mistake we see at the counter, and it is almost always the same story: somebody looked up their tonnage, bought what a chart told them, and put a capacitor in that the motor never asked for….

If your AC unit hums but won’t start, or it clicks on and off randomly, the problem might be a bad contactor. The contactor is a small electrical switch inside your condensing unit that sends power to the compressor and fan motor when your thermostat calls for cooling. When it fails, your whole system can…
Every HVAC system has a nameplate — a metal sticker with the model number, serial number, and key specs printed on it. If you can find it and read it, you can walk into our store and we’ll pull the exact replacement part in seconds. Here’s how to find yours and what the numbers mean….
Control boards are the most common HVAC repair part. Learn how to identify your board by model number, choose between OEM and universal replacements, and swap it out yourself.
Yes, anyone can buy most HVAC parts without a license. Here is what is restricted, what is not, and where to find an HVAC supply store that sells to the public.
Understanding the Shift from A1 to A2L Refrigerants in Residential HVAC Systems In recent years, there has been a growing focus on transitioning from A1 refrigerants like R410a to A2L refrigerants such as R32 and R454B. The change is driven by a need to reduce the environmental impact and improve energy efficiency in residential HVAC…