What is the $5000 AC rule?

The $5000 AC Rule is a simple guideline homeowners use to decide whether to repair or replace an air conditioner. You multiply:

If that number is $5,000 or more, replacement is usually the smarter long‑term choice. If it’s under $5,000, a repair may still be cost‑effective.

$5000 AC RuleExample

• AC age: 12 years
• Repair cost: $450
• 12 × 450 = $5,400 → Replacement is recommended.

Why it matters

• Older systems lose efficiency
• Repairs become more frequent
• New systems offer lower energy bills and better warranties

Additional Sources:

U.S. Department of Energy – Central Air Conditioners Guide

AC Repair