When your AC breaks down in Dallas's summer heat, you need to decide fast: fix it or replace it? The answer depends on your system's age, the repair cost, and long-term economics. Here's a practical decision framework for Dallas homeowners.
Multiply the age of your AC (in years) by the repair cost. If the result exceeds $5,000, replace. Example: a 12-year-old unit needing a $500 repair = $6,000 — replace. A 5-year-old unit needing a $500 repair = $2,500 — repair. This simple formula helps Dallas homeowners make rational decisions under pressure.
Repair when the system is under 10 years old, the fix is a single component (capacitor, fan motor, contactor), the cost is under $1,000, and the system has been well-maintained. For Dallas homeowners with newer systems, a repair is almost always the right call.
Replace when the system is 15+ years old, uses R-22 refrigerant (phased out — refills cost $100–$200/lb), needs frequent repairs (2+ per cooling season), or energy bills keep climbing. Modern systems are 30–50% more efficient, saving Dallas homeowners $500–$1,200/year on cooling costs.
If your AC is dying but still limping along, schedule replacement in spring (March–May) before Dallas's summer demand hits. You'll get better availability, potentially better pricing, and won't be without AC during a heat wave. Emergency summer replacements cost more and have longer wait times.
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