Determining the exact age of household appliances is a task that may seem simple, but often confuses owners. Knowing exactly when yours refrigeratorcame off the assembly line is necessary not only for assessing its residual life, but also for selecting the right spare parts. Many parts, such as compressors or electronic control modules, are changed by manufacturers depending on the year of manufacture, and an error in the date can lead to the purchase of incompatible equipment.
Unlike cars, where the year of manufacture is indicated in the title and on the glass nameplate, in household appliances this information is encoded in a long sequence of numbers and letters. Serial number (S/N) or Factory number (Product Number) contains the entire history of the birth of the unit. However, there is no universal encryption standard for all brands, and each major manufacturer uses its own date encoding algorithms.
In this article we will analyze decryption algorithms for the most popular brands on the market. You will learn to find the right numbers on the nameplate and interpret them correctly. This knowledge will help you avoid being scammed when buying used equipment and accurately determine whether your model is eligible for the current warranty.
⚠️ Attention: Manufacturers may change marking systems without prior notice. If the diagrams below are not suitable for your case, check the information on the manufacturer's official website or in the service documentation of a specific series.
Where to look for the identification number on the refrigerator
The first step is always to physically search for the factory sticker or metal plate. In most cases, manufacturers place information labels on the inside of the chambers so that they are accessible without moving the heavy unit. Most often, look for markings on left side wall inside the refrigerator compartment; sometimes it is hidden behind shelves or containers for vegetables.
If the number is not found inside the chamber, inspect the back wall of the refrigerator. A metal plate can be riveted or glued to the outer casing, closer to the compressor. Also, do not ignore the base part of the unit, where stickers with technical information are sometimes located. The combination you are looking for is usually indicated as S/N, Serial No, Prod. No or simply №.
It is important to distinguish between the serial number and the device model. The Model Code describes the characteristics, color and functionality, while the serial number is unique for each copy. It is in it that the date is encrypted. In some cases, especially with built-in equipment, the number may be duplicated in the warranty card or on the box, if it has been preserved.
Date coding system for Bosch, Siemens and Neff refrigerators
The German group BSH (Bosch-Siemens Hausgeräte) uses one of the most logical and user-friendly marking systems. Unlike many competitors, they do not hide the date in the middle of a long code, but make the first four digits of the serial number explicit. This greatly simplifies the life of equipment owners Bosch, Siemens, Neff i Gaggenau.
To find out the year of manufacture, you need to look at the first two digits of the serial number. They indicate the year of production. The third and fourth digits indicate the week of release for that year. For example, if your number begins with 2015, then the refrigerator was manufactured in 2020 (where 2 is 2020 according to the brand’s logic, but there is a nuance described below). In fact, for modern models (after 2010), the first two digits are just the year, not the code.
However, you should be careful with older equipment. Until 2010, an alphanumeric encoding was used, where the year was indicated by a letter. But for the current used equipment market, a modern system is important. If the number begins with 70 or 80, this may indicate 2007 or 2008, respectively, or 2017/2018, depending on the decade, which is easy to determine by the appearance of the model.
Let's consider an example of decoding in a specific case. Let's say you see a number on the nameplate 160456789. Here 16 means 2016, and 04 means the fourth week of the year (end of January). This allows you to determine the age of the unit with an accuracy of up to a month.
Deciphering the serial numbers of LG and Samsung refrigerators
Korean giants LG and Samsung use more complex algorithms, where the date is often “hidden” in the middle or end of the line, and letters can be used to indicate it Latin alphabet. This often causes confusion among users trying to independently determine the age of the device.
For refrigerators LG the serial number usually consists of 12 characters. The production date is encoded in the first characters, but not always explicitly. Often the first three digits are the plant code, followed by the year. However, a more reliable way is to look for a separate date sticker or focus on the first numbers. In new LG models, the first two digits may indicate the year, and the next two may indicate the month. For example, 2103 at the beginning of the issue it will indicate March 2021.
For technology Samsung the situation is even more confusing. The serial number can contain 15 or more characters. The year of manufacture is often indicated by a letter or number in a specific position, depending on the assembly plant. For example, the letter L can mean 2020, M — 2021, N - 2022. However, this correspondence table changes. Most often with Samsung you need to look at the 8th, 9th and 10th characters, or look for a combination where the year is clearly indicated in numbers.
It is important to understand that for Korean brands it is critical to know the manufacturer (Kaluga, China, Vietnam, Korea), since numbering formats may differ. If you see a number starting with letters, this is almost always a factory code.
- 🔍 LG: Look for the year digits at the beginning of the line or use the first 4 digits as YYMM (year-month) on newer models.
- 🔍 Samsung: Pay attention to the 8-10 characters or letter year codes (K=2019, L=2020, M=2021, N=2022, P=2023).
- 🔍 General: For Korean brands, the number is often duplicated on the box in a format that is more understandable for logistics (YYYY-MM-DD).
⚠️ Attention: When purchasing spare parts for Samsung and LG, the year of manufacture alone may not be enough. These brands often change the design of components within the same model year. Always check the part number (Part Number) with catalogs.
Features of labeling Indesit, Ariston and Whirlpool
The Italian group (formerly Merloni, now part of Whirlpool Corporation), which includes brands Indesit, Ariston, Hotpoint and Whirlpool, uses a fairly transparent, but specific system. In their serial numbers (usually 10-12 characters), the production date is encrypted in the second and third digits.
The algorithm is as follows: the first digit usually indicates the manufacturing plant. The second and third digits are the year of manufacture. This is followed by two numbers indicating the week of production. The remaining characters are the serial number of the product on the conveyor. For example, in the number F21045678:
F —factory code.
21 —year of manufacture 2021.
04 —4th week of the year.
For older models (before 2010), the letter coding of the year was used, where A=1999, B=2000 and so on, skipping some letters. But for modern technology, which is used by the majority, the digital principle applies. If you see a number starting with 85, this is most likely the plant code, and the year will follow.
A distinctive feature of Whirlpool appliances is the presence of a separate code 12NC (12 Numeric Code). This is a 12-digit number that is often located next to the serial number. It does not contain a date, but is key to finding electrical diagrams and instructions. Don't confuse it with S/N when trying to find out the age.
What if the number starts with a letter from Indesit?
If your number starts with a letter and not a number, it may be a very old model or a specific series for retailers. In this case, try to find the second nameplate or refer to the code on the compressor.
How to determine the age of refrigerators Atlant, Beko and Liebherr
Brands Atlant, Beko and Liebherr occupy a significant market share, especially in the segment of reliable and affordable equipment. Their approaches to labeling have their own national characteristics.
Atlant (Belarus): Atlant refrigerators often have a serial number of 10 digits. The first two digits usually indicate the year, the next two the month. For example, the number 1507123456 indicates July 2015. However, in some series the code may be shifted. Also on the back wall there is often a separate sticker with the production date clearly stamped.
Beko (Türkiye): For Turkish refrigerators Beko, Blomberg and Grundig (assembled in Turkey/Russia), the serial number usually begins with a letter (factory code), followed by two digits of the year and two digits of the month. For example, S1506.. is June 2015. This is one of the easiest systems to understand. Beko (Turkey): The German premium manufacturer uses a number, which often consists of 9-10 digits. The date can be encrypted in the first digits or indicated separately as
Liebherr (Germany/Austria): The German premium manufacturer uses the number Serial No, which often consists of 9-10 digits. The date can be encrypted in the first digits or indicated separately as Date of Production. In new models, Liebherr often uses a QR code, which can be read with a smartphone to obtain the exact date and equipment.
All three brands are characterized by the presence of a factory seal on the compressor. If there is no sticker on the body or it is unreadable, the date is stamped on the metal body of the compressor. This is the “passport” of the heart of the refrigerator, which is almost impossible to lose.
☑️ Check before buying a used refrigerator
Correspondence table of letter year codes (universal help)
Many manufacturers, especially European and Asian, have used or continue to use letter codes to indicate the year in order to save space on the label or hide the exact date from the end consumer. While there is no single standard, there are well-established industry conventions that help with decoding.
Below is a table covering the most common codes. Please note that the cycle may repeat or shift depending on the decade (for example, A could be 1990, 2000, or 2010), so always evaluate the appearance of the equipment.
| Code | Year of manufacture | Note |
|---|---|---|
| A | 2010 / 2000 | Often used for older models |
| B | 2011 / 2001 | Found in Whirlpool markings |
| C | 2012 / 2002 | — |
| L | 2020 | Relevant for Samsung and others |
| M | 2021 | — |
| N | 2022 | — |
| P | 2023 | The letter "O" is often skipped |
Therefore, after the letter H can immediately go J or K, and then N — P. This is standard practice in industrial labeling.
Frequent questions and problems when determining the date
Even knowing the theory, users often encounter practical difficulties. Stickers may fade, become scratched, or become damaged in transit. In such cases, do not despair - there are alternative ways to obtain information.
If the nameplate is completely destroyed, try to find documentation: a warranty card, instructions or a receipt from the store. The receipt often indicates not only the store, but also the specific model, and sometimes the serial number if the equipment was punched using a barcode. You can also try to find a box, although owners rarely store large packaging for years.
Another method is indirect. Find the exact model name (Model Code). Enter it into a search engine and add the word "review" or "manual". Reviews of equipment are often published in the year of its release or a little later. If you find a review of this model for 2018, it means that the refrigerator could not have been released in 2015, since it was not on sale yet.
Can you tell the year by sound or operation?
No, this is a myth. Modern compressors and refrigerants (R600a) have been used for decades. An old refrigerator may be quieter than a new one, and vice versa. Only the number gives the exact answer.
What to do if the serial number on the sticker does not match the number on the box?
This is an alarming signal. The number on the box is the package number, which could have been used for another piece of equipment in the warehouse, or the box is not original. The number on the nameplate of the refrigerator itself (inside or on the back) has priority and is legally significant. It is this that is considered the device identifier.
Does the year of manufacture affect the build quality of the refrigerator?
Yes, indirectly. Manufacturers are constantly optimizing processes. Older models (pre-2010-2012) often had thicker metal and simple but reliable mechanical control systems. Modern refrigerators are more complex, use inverter compressors and electronic boards that are sensitive to power surges, but are more economical and quieter.
Can a refrigerator be released in one year and sold in another?
Certainly. Between the production date and the date of purchase, it can take from several weeks to 2-3 years, especially if the equipment was imported or was in the retailer’s warehouse. The warranty period is most often calculated from the date of sale (based on the receipt), but if there is no receipt, from the date of production + 3 months (standard practice for many brands).
Where can I find a service manual for my model by year of manufacture?
Service manuals are tied to the model code and revision, and not just to the year. Knowing the exact model code (for example, GA-B489), you can find documentation on specialized sites like Elektrotanya or official support portals. The year of manufacture will help you choose the correct version of the manual if the model was produced for a long time and was modernized.
Is it true that you can find out the country of assembly by the number?
Partly true. The first characters of the serial number are often the plant code. For example, Samsung codes starting with RF often indicate Kaluga, and certain combinations indicate China or Vietnam. The decoding of these codes is in the databases of service centers, but is not always available.
Determining the year of manufacture of a refrigerator is a skill that can save you money and time. Having this information gives you an advantage when negotiating with the seller, when ordering spare parts and when contacting customer service. Always check the labels before buying used equipment so as not to buy a “pig in a poke” ten years ago.