Fast, Accurate Serial Number Decoding & Item Age Verification

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Serial number decoder

Select the category and brand, then enter the serial. Supported formats can return a manufacture period and estimated age; repeating codes may show more than one valid year.

⚡ Rule-based format checks
or
✨

Smart lookup

Enter a model number or plain description. AI-powered research returns an estimated age and replacement context — no serial required.

ⓘ Best when the label is missing

Enter the serial number exactly as shown on the product label

No serial number? Use the smart lookup panel.

Enter a model number or item description. Works for appliances, HVAC, electronics, generators, commercial equipment, and more.

Have a serial number? Use the Decode Serial Number panel on the left.

🏢Brand and era aware
⚡Rule-based serial checks
🤖AI Fallback via Smart Lookup
🏠Appliances, HVAC, Electronics & Water Heaters
How Decode My Item works

Evidence first, estimates where needed

Decode My Item compares the category, brand, serial pattern, and likely production era. Some supported formats identify a month or week; repeating codes and modern randomized identifiers may only support a range or no public date at all.

Rules are researched against manufacturer references and regression-tested examples. The site is independent from manufacturers, and Smart Lookup provides a model-based recovery path when deterministic serial decoding is unavailable.

Read the Methodology About Decode My Item Find Model & Serial Numbers Report a Correction
Browse by Brand

Decode by Brand

Dedicated serial number decode guides for major appliance and electronics brands.

Appliances
GERefrigerators, ranges, washers→ WhirlpoolAll Whirlpool family brands→ SamsungAppliances & TVs→ LGAppliances & TVs→ BoschDishwashers, washers, ranges→ MaytagPre & post-2006 formats→ FrigidaireRefrigerators, ranges, washers→ KenmoreOEM identification guide→
Electronics
AppleLegacy serials & model identification→ HPYear/week codes & product IDs→ ASUSLaptops, motherboards, desktops→ Samsung TVTV serial year/month codes→ SonyBRAVIA model-year suffixes→ VizioTV model-year lookup→
HVAC & Water Heaters
CarrierHVAC systems & heat pumps→ GoodmanHVAC systems→ TraneHVAC systems→ Rheem HVACHeating and cooling serials→

More brands available in Decoder Tool Search Menu →

ⓘ How to Use This Tool

Quick Decoding

  1. Click Appliances, Water Heaters, HVAC, or Electronics
  2. Choose the brand from the dropdown
  3. If an Era selector appears, choose Pre-2006 or Post-2006
  4. Enter the serial number exactly as shown on the label
  5. Click Decode Serial Number

No Serial Number?

Click the ✨ Smart Lookup tab. Enter a model number, brand name, or description (e.g., "GE Profile PFE28KSKSS") to get an AI-powered age estimate.

Finding Serial Numbers

Note: Many serial number codes repeat every 10–20 years. Always verify the decade using physical condition, model features, purchase receipts, or installation records.