Enter the serial number from any major appliance, HVAC system, or electronic device. We decode the embedded date code using verified manufacturer formats.
1 Select a category & brand
2 Enter serial number exactly as shown
3 Click Decode — instant result
Manufacturers often recycle serial formats every 20 years. Selecting the era ensures the decoding logic matches your specific unit.
Enter the serial number exactly as shown on the product label
We use manufacturer serial format rules and published industry references to extract manufacture date information from serial numbers. Some brands reuse year codes across decades, which is why multiple valid years may appear. When two years are shown, the correct decade can typically be confirmed using physical condition, purchase records, or known installation dates.
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