• The PROTECH Master Catalog is also a complete reference for authorized replacement parts to Rheem, Ruud and WeatherKing air conditioning and heating equipment. There is no need to go anywhere else for your professional HVAC and water heater parts, supplies and accessories.
• Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute.

• Rheem Hvac Date Code
• Rheem Serial Number Decoder
• Rheem Hvac Serial Number Nomenclature
• Rheem Model Number Nomenclature

The Rheem heat pump condenser has a data plate located on the outside unit that will display the model and serial number. The model number is used by the manufacturer (Rheem) to determine the size in tonnage of the unit. It also has important information like the SEER rating and voltage and phase of the unit. The model number is a coded number that must be decoded by using the Rheem model number decoder which is built-in on the HVAC Decoder App. Rheem also rebrands lots of its product to other names like Ruud, Sure Comfort, and Weather King among other names.

Rheem® Water Heater Age The date of production/manufacture or age of Rheem® Water Heater(s) can be determined from the serial number. Serial number styles/formats found are. Where to Find Rheem Serial Numbers. Model and serial numbers are listed on your original warranty or sales invoice, as well as on the equipment itself. Click here to read how to find the Rheem Serial Numbers on the equipment itself. Contact Rheem Pro Partner. Gus HVAC is proud to be a Rheem Pro Partner. Contact us with any questions on your Rheem warranties. We proudly serve Canton and Alpharetta, Georgia areas.

The HVAC Decoder App can decode the Rheem model number along with the rebrand unit in a snap.

Rheem Hvac Date Code

The HVAC Decoder App does all this for you just enter the model number and get the results.

Rheem Serial Number Decoder

Example Rheem Heat Pump Model Number: RP1436FC1NA

The Decoder App results are shown below.

Decoder Results RP1436FC1NA

Rheem Hvac Serial Number Nomenclature

AIR-CONDITIONER DATE CODES (serial #)
AMANA / BLACKHORSEB=1971 or 1981 (Of course, now that they've been bought by Goodman, who knows what'll happen)
BARD1962 to March 1980 Sample Number 123456 A D
1st six digits are the Unit Identity Number. In this example they are represented by the numbers 123456. 7th digit is the month of Manufacture.
8th digit is the year of Manufacture. (The letter D in the Sample represents 1964).
1962 = B 1965 = E 1968 = H 1970 = K 1973 = N Letter 'Q' not used 1978 = T
1963 = C 1966 = F Letter 'I' not used 1971 = L 1974 = O 1976 = R 1979 = U
1964 = D 1967 = G 1969 = J 1972 = M 1975 = P 1977 = S 1980 = V
April & May 1980 Sample number 123 D A 123456
1st three digits are the Compressor Part Number. 4th digit is the month of Manufacture. 5th digit is the year of Manufacture.
In this sample A represents 1980. 1980 = A 6th thru 11th digits represent the Unit Identity Number.
This serial number style was only used during the months of April & May 1980.
June 1980 to Current Sample number 123 H80 1234567 02 1st three digits = Compressor Part # 4th digit = Month
5th & 6th digits = Year 80 = 1980 81 = 1981 82 = 1982 The year 2000 started the numerical numbering from 00.
00 = 2000 01 = 2001 02 = 2002 Right on through to current date. 7th thru 13th digits = Unit Identity #. 14th & 15th digits = Factory Code (01=OH; 02=GA)
Carrier, Bryant, Payne, Day & NightRecently (last 20 years or so) the first four numbers in the serial number represent the week and year.
Previously, it was a complex series of letters and single digits. Call 905-672-0860 if you get stuck.
ColemanSerial numbers prior to April 1992=1st two numbers are month, then year, then series.
After April 1992, 1st two numbers are year, then month, then series. Call 905-672-0860 if you get stuck.
Comfortmaker (International Comfort)Uses the first letter for the month (skipping I) and the first two digits are the year.
First Company Service PartsIs one of 4 divisions of First Operations. They supply OEM equipment to all of the major HVAC manufacturers.
They are located in Dallas, Tx at 214-388-5751. Harold Hammer at Tech Support (ext#5) will answer your questions.
GoodmanFirst two digits of the serial number are the year. Second two are the month.
Lennox Either the first two or second two digits are the year, it varies by era, but most of them actually have a separate sticker somewhere that has the year printed on it. Newer ones are first two equals manufacturing plant #, 2nd two are year and letter in fifth slot is month.
PeerlessPrior to 1984 there was not a date code included as part of the serial number. Starting in 1984, there was a four digit date code following the serial number that was month and year. Example - JO-12345-1084, this unit was built in October of 1984. Starting in the year 2000, same idea only it was a six digit date code following the serial number that is year and month. Example - 1234567-200105, this would have been build in May of 2001.
Anything without the addition to the serial number would have been made before 1984 and would require contact with the factory.
Rheem & Rudd WeatherkingSomewhere in the middle of the serial number will be a letter. The following four numbers are the week and year.
TRANEUses alpha codes in their serial numbers to determine year of manufacture. They started this in 1987 with the letter B and skipped a couple of letters during the years... The first letter of the serial number gives the year of manufacture as follows:
O, A=80(seventh digit) U=82(seventh digit) X=84 S=86 C=88 E=90 G=92 J=94 L=96 N=1998 R=2000
T=81(seventh digit) W=83 Y=85 B=87 D=89 F=91 H=93 K=95 M=97 P=1999 Z=2001
In 2002 they started their serial numbers with the year it was built. In 2002 the first character of the serial number is 2, in 2003, 3 and so on.
Weil-McLainPlease look on the outside jacket of the boiler for a CP Serial Number. It will have a bar code on it. Call (or email) Weil-McLain and they will tell you the date of manufacture. Phone: 219-879-6561 ask for Technical Services
YORK (Unitary Products since 1984)York purchased Fraser, Johnston and Luxaire in 1980.
Year of make indicated by 3rd letter in the serial number. Note: they skip the letters I, O, Q, U, Z.
1971 - A 1975 - E 1979 - J 1983 - N 1987 - T 1991 - Y 1995 - D 1999 - H 2003 - M
1972 - B 1976 - F 1980 - K 1984 - P 1988 - V 1992 - A 1996 - E 2000 - J 2004 - N
1973 - C 1977 - G 1981 - L 1985 - R 1989 - W 1993 - B 1997 - F 2001 - K 2005 - P
1974 - D 1978 - H 1982 - M 1986 - S 1990 - X 1994 - C 1998 - G 2002 - L 2006 - R

Rheem Model Number Nomenclature

Weatherking: 9th box from left is the year