Where to Buy an AC Capacitor in Dallas

Byadmin

Your AC stopped cooling, and after a quick search you think the capacitor is the problem. Now you need one — today. Here’s where to get it in Dallas and what to know before you buy.

The Short Answer

Open To Public HVAC Parts at 10226 Plano Rd, Suite 104, Dallas TX 75238. We carry every common capacitor value in stock — single and dual run, 370V and 440V, round and oval — from brands like Titan HD (American-made), MARS/JARD, Supco, AmRad, and TradePro. Walk in, and we’ll test your old capacitor at the counter for free before you spend a dime.

Store hours: Mon–Fri 10am–7pm, Sat 10am–3pm
Phone: (214) 340-9421 (call or text)

Why Not Just Order One Online?

You can. Amazon, SupplyHouse, and Home Depot all sell capacitors. But here’s the problem: if you order the wrong value, the wrong voltage, or the wrong shape, your AC still won’t work — and now you’re waiting another 2–3 days for the right one. In July in Dallas, that’s not an option.

When you walk into our store with your old capacitor (or just the numbers off it), we:

  • Test it on the spot — we’ll confirm it’s actually bad before you replace it
  • Match the exact replacement — by MFD, voltage, and physical size
  • Explain the swap — if you’ve never changed a capacitor, we’ll walk you through it

That’s something Amazon can’t do.

How Much Does an AC Capacitor Cost?

At our store, most run capacitors cost $10–$38 depending on the MFD value and whether you want American-made (Titan HD) or an imported option. Dual run capacitors — the most common type in residential AC systems — are typically $15–$38.

For comparison, an HVAC service call to replace a capacitor usually runs $150–$350. The part itself is the cheap part. The labor is what gets expensive.

Check our full DIY vs. Pro cost comparison to see how much you can save on other common repairs too.

How Do I Know Which Capacitor I Need?

Every capacitor has three numbers printed on it that matter:

  1. MFD (microfarads) — the capacitance value. A dual run capacitor shows two numbers like 45/5, meaning 45 MFD for the compressor and 5 MFD for the fan motor.
  2. Voltage — either 370V or 440V. A 440V capacitor can replace a 370V one (not the other way around).
  3. Shape — round or oval. Electrically identical if the MFD and voltage match. Round is more common.

If you can read those three numbers off your old capacitor, you can walk in and we’ll have the replacement ready in 30 seconds. If you can’t read them, bring the old one in — we’ll figure it out.

You can also use our Capacitor Cross-Reference Chart to look up equivalent part numbers across 9 major brands.

Signs Your AC Capacitor Is Bad

Not sure if the capacitor is actually the problem? Here are the most common signs:

  • AC hums but won’t start — the compressor is trying to kick on but can’t
  • AC runs but doesn’t cool — the fan spins but the compressor isn’t engaging
  • AC shuts off randomly — a weak capacitor can cause intermittent failures
  • The capacitor is visibly swollen, leaking, or bulging at the top

Read our full AC Not Cooling Troubleshooting Guide for step-by-step diagnosis.

What If It’s Not the Capacitor?

The capacitor is the most common AC failure, but it’s not the only one. If your capacitor tests good, the next things to check are:

  • Contactor — the electrical switch that sends power to the compressor ($18–$35)
  • Condenser fan motor — if the fan isn’t spinning at all ($120–$180)
  • Hard start kit — helps an aging compressor start under load ($25–$40)

Bring the questionable part in. We test capacitors, contactors, motors, and relays at the counter — for free. We’d rather test it and tell you it’s fine than sell you something you don’t need.

About Open To Public HVAC Parts

We’ve been selling HVAC parts to Dallas homeowners since 1998. We’re not a contractor-only supply house — anyone can walk in. No account needed, no license required. With 27,000+ parts in stock and 500+ five-star Google reviews, there’s a reason DFW homeowners drive from Garland, Plano, Richardson, and Rockwall to get their parts from us.

Open To Public HVAC Parts
10226 Plano Rd, Suite 104, Dallas, TX 75238
(214) 340-9421 — call or text
Mon–Fri 10am–7pm | Sat 10am–3pm
Browse our catalog | Get directions

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