Goodman furnace serial number age - We'll tell you how to read the Trane serial number to figure out the age of your equipment: For units built dating back to 2010 until now, you'll need to pay attention to the first four digits. The first two will indicate the year and the next two will represent the week. For example, 1204 would mean it was manufactured in the fourth week ...

 
For example, a furnace with the serial number "040852398" tells you that the furnace was manufactured in 2004 in the month of August. How do you tell the age of a …. Bryn francis and harrison abram thompson

Determine The Age of My Water Heater. The first two characters of the serial number represent the year and month of manufacture. Register my warranty. Production Year ... This rating plate example shows the model number in blue and the serial number in yellow. Service, Repair or Replace 3 Simple Steps. Whatever your issue, it’s easy to solve ...Whether you need a York furnace model number or a Goodman furnace model number, it’s a good idea to know where to find furnace model numbers and how to decode them. These numbers a...The Age of Luxaire Furnace can be determined by decoding the 2nd-4th digits serial number. Year of manufacture is 2nd and 4th number. You need to combined these 2 digits to get the year of manufacture. If the 2nd digit is "1" and the 4th digit is "9" the Luxaire furnace is produced in 2019.Aug 31, 2023 · ADP® HVAC age. How to determine the date of production/manufacture or age of ADP® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary ... Style #6: 9 Characters - All Numbers. Style # 6 can be found on older Rheem water heaters and HVAC units made in the 1970's and earlier. Most of these units are likely out of service now. The date is coded in the last 4 characters of the serial number. Example Serial #: 16825 2873.We've included some images of Rheem water heater labels below for your reference, but once you've located your serial number simply enter it in, click the "Check Serial Number", and our calculator will let you know just how old your Rheem water heater really is. Enter your Serial Number below. Sample Water Heater Serial Numbers ...The date of production/manufacture or age of Daikin brand HVAC equipment can be determined from the serial number located on the rating data plate. Example serial number styles/formats found: ... Daikin completes 4.2 million square foot, state-of-the-art facility and consolidates Goodman's HVAC manufacturing, logistics, and customer support ...Determining the Age of a Ruud Furnace from Serial Number. Ruud furnace serial number is typically located on a metal plate on the furnace itself. The serial number combines letters and numbers that can be decoded to determine the furnace's age. To determine the age of the Ruud furnace, you will need to know the year and month that the furnace ... Residential Commercial Multi-Family. * Homeowner last name must be entered and verified to display complete limited warranty coverage. Want to access the warranty details on your Goodman HVAC system? Enter the product details and find the complete warranty information. In this blog post, we will discuss how to locate your AC model and serial numbers. Locating the Model Number. The model number is typically located on a label on the outside of your AC unit. The label may be located on the back, side, or bottom of the unit. Look for a label with the manufacturer's name, model number, and serial number.Goodman Air Conditioning & Heating is a leading manufacturer of HVAC products. A member of the Daikin family, Goodman offers budget-friendly systems for homeowners looking for reliable, high ...How do I tell the age of a Goodman furnace from the serial number? Saturday, January 11, 2020. The first two numbers in the serial number of a Goodman furnace are the year of manufacture. So the serial number above indicates the unit is from 2010.Sears Data Tag Age Decoder for Later Sears Kenmore Heating Equipment. Find the serial number written as a single alphabetic letter followed by 9 numeric digits that begin with digits for YY and WW. X YYMM nnnnn Example: M 9405 9386 YY = 94 (1994) and WW = Week 05 and nnnnn is a 5-digit unique serial number for equipment made during that year ...Data communication between digital devices is often done through serial cables, which are used to transfer data between devices that use bit-by-bit or serial port communication tec...Bryant HVAC Age: Serial Number Decoding for AC, Furnace & Heat Pump; ... Goodman HVAC Age: Sequential Number Decoding for DIRECT, Furnace & Heat Pump; Trane HVAC Age: Serially Total Decoding for AC, Furnace & Heat Pump; Basics. What Is a Good CADR Rating since Air Air; Call 888-894-0154 to Receiving Free Quote …The Goodman serial number is a ten digit code that helps us identify the age of goodman air conditioner. The date of manufacture is coded in the 1st four digits of the goodman serial number. These four digits code represent the year and the month of manufacture. Serial Number Lookup & Examples #1305754230 Now I will explain how to read the ...The duration of warranty coverage in Texas and Florida differs in some cases. At Goodman, we believe in American dependability. Units are designed, engineered and assembled in the U.S.A. The CHPF Series, Helium Pressure-Tested Evaporator Coil by Goodman. HVAC products designed, engineered and assembled in the USA!Goodman Date Codes. The 1st and 2nd digits of the serial number are the year. The 3rd and 4th digits of the serial number are the month. Goodman: Model No.: CKJ60-1, SN: 0107415182, was manufactured in 2001, July. Goodman: Model No.: GSC130481AA, SN: 0606111539 was manufactured in 2006, June.This label contains the unit's information and makes it unnecessary for your HVAC dealer to search for the serial number on the unit. **Complete warranty details available from your local dealer or at www.amana-hac.com. To receive the Lifetime Unit Replacement Limited Warranty (good for as long as you own your home) or 2-Year Unit Replacement ...{{ngMeta.description}}Description: This recall involves 80% efficiency gas-fired furnaces sold under the Goodman, Amana and Daikin brand names used with home heating and cooling systems. The recalled products have model numbers beginning AMEH80, DM80HE, and GME8, and serial numbers beginning 1609, 1610, 1611 and 1612.Can someone help me figure out the age of a Ducane furnace and how you determine it? The model # is MPGA100848. Serial # 8503740637. Thanks. That one should be January of 1985. The first two digits being the year, and the next two digits being the week. gliebig (Gregory Liebig, CMI) March 28, 2011, 9:35pm 3.Where can I find the serial number on my Goodman furnace? The air condenser # was easy to find but not for the furnace. I didn't want to open the access panel because the furnace is powered and the fan is running. I can't find the warranty paper. Help please! Reply . 07-23-2012, 09:20 AM #2.Fortunately, with the HVAC Decoder App you can find out the age of a wide assortment of brands and product categories with just the click of a button or touchscreen. To demonstrate the action of the built-in Nordyne Serial Number Decoder, take a look at the following results for a Manmouth serial number. In this example, the 4th and 5th digits ...A Key to Determining Furnace Age: The Serial Number. Find the Serial Number. When trying to determine the age of your furnace, the first item you’ll have to …How to determine the date of production/manufacture or age of Ingersoll Rand® manufactured HVAC Systems. The date of production/manufacture or age of Ingersoll Rand® manufactured HVAC equipment can be determined from the serial number. Parent Company: Ingersoll Rand Company.McGarry and Madsen Inspection. 16822 SE 92nd Danna Avenue, The Villages, FL 32162. www.thevillagesbestinspector.com • Comments or questions to [email protected]. While we hope you find this series of articles about home inspection helpful, they should not be considered an alternative to an actual home inspection by a local inspector.How do I tell the age of a Goodman furnace from the serial number? Saturday, January 11, 2020. The first two numbers in the serial number of a Goodman furnace are the year of manufacture. So the serial number above indicates the unit is from 2010.How to determine the date of production/manufacture or age of Century® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from …There is only 1 style that you will find for the goodman ac age by serial number. It looks like this: Style #1. ... Goodman AC is a budget-friendly, high-quality HVAC system. Depending on the model and tier you select, a Goodman AC unit cost between $3000 to $4275. I spent $4800 for the air handler and the condenser in Pembroke Pines, FL in 2018. Enter the 7-digit CP/Serial Number of the boiler to obtain the manufacturing date and any associated information on the product. If the CP# is only 6 digits, enter a leading zero, e.g. 0137718. This look-up will not give manufacturing information for any other Weil-McLain product but boilers. Mar 11, 2024 · Style # 3 Amana serial numbers are eight characters – all numbers – with a “-” after the first and second numbers. Example: 98- 90558. Year: In style # 3, the first and second digits together indicate the year the unit was made, so 98 means it was made in 1998. Month: N/A This style of serial number does not give you the month it was ... Saturday, July 21, 2018. The first two digits of the serial number are the year of manufacture for a Goodman heat pump or air conditioner. This unit was manufactured in 2013. To find out the age of another brand of air conditioner or heat pump, go to How do I determine the age of my air conditioner?, which has a listing of all major ...View and Download Goodman GMS8 Series technical manual online. 33-3/8'' 80% Gas Furnace Units 80% AFUE, Single Stage, Multi-Speed, Upflow Horizontal. ... Refer to the appropriate Parts Catalog for part number information. ... professionally trained HVAC technicians RT6622014r3 only. Goodman does not assume any responsibility for property damage ...The Goodman serial number is a ten digit code that helps us identify the age of goodman air conditioner. The date of manufacture is coded in the 1st four digits of the goodman serial number. These four digits code represent the year and the month of manufacture. Serial Number Lookup & Examples #1305754230 Now I will explain how to read the ...You can find the Trane tonnage and SEER in the 5 th, 7 th and 8 th characters of the Trane model number. The 5 th character represents SEER in a single number; the 7 th and 8 th characters, also numbers, show the tonnage code. The Trane model number nomenclature for central air conditioners and heat pumps is explained below in this Trane model ...The serial will tell a distrributor which one it is. The last 2 letters are release version and revision. When posting in certain forums, knowing your location will help others give better feedback/advice/solutions to your questions. Model number is GSC130361, serial number is 0609098651.The recalled air handlers have serial numbers beginning with 1511, 1512, or 1601 through 1610. The serial number is located on the label found by removing the wall panel (for AWUF units) or ceiling panel (for ACNF units). The air handlers were sold at Goodman heating and cooling equipment dealers nationwide from November 2015 through October 2016.Goodman Manufacturing Introduces U.S. Alumacoil as Coil and Air Handler Manufacturer by HVAC Distributors July 16, 2015. Goodman Manufacturing issued Product Marketing News (PMN) C-GN-OT-972 announcing that safety and rating plates on common coils and air handlers will list U.S. Alumacoil™ as the manufacturer, starting with units produced August 2015.HVAC 101. What is two-stage cooling? What is inverter or variable speed cooling? What is modulating heating? Should I zone my house? What is AFUE? What is HSPF? What do all those air conditioner and heat pump ratings mean? What is a "properly matched" system?On the flip side, you may need the intervention of an inspector. Lastly, the best way to determine the age of your Whirlpool furnace is by checking the letter and digits. In early 1970, the letter shows the decade of manufacture accompanied by the week (G = the 1970s, H=1980s, J=1990s, K=2000s). For example, H614LXLXL = 14th week of 1986.How to determine the date of production/manufacture or age of Carrier® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. ... The serial number style was used primarily during the 1980's ...How do you read Goodman serial number? The Goodman serial number is a ten digit code that helps us identify the age of Goodman air conditioner. The date of manufacture is coded in the 1st four digits of the serial number. These four digits code represent the year and the month of manufacture. Serial Number Lookup & Examples #1305754230Apr 8, 2024 · The age of the equipment cannot be found in the serial number. Call the manufacturer with the serial number to determine the year of manufacture– 305-513-4488 or email [email protected]. Reznor. See Nortek. Red T. See York. Rheem. Y=year of manufacturer X=letter 7=numbers The year of manufacture for Rheem or Ruud equipment is encoded in the ... Hi Billy, What is the age, AFUE and BTU input of a York furnace mod#TG95O8OB12MP11A, S/N WON85011531. 2008 … read more. BillyHvac. Journeyman HVAC Tech. State Licensed Mechanical... 16,422 satisfied customers. Show more. Disclaimer: Information in questions answers, and Show Less.GMS90904CXA - P1256809F Parts List: Blower Motor — 0131F00022SP, Goodman/Amana/Janitrol, 1/2HP, 115 Volts, 4 Speed Vent/Inducer Motor - 0171M00000S. Skip to the content. ... PCBBF112S Goodman/Amana Gas Furnace HSI Board . Furnace Gas Valve — 0151M00013S / B1282628, Goodman/Amana, Single Stage $ 114.27 Original price was: ...How to determine the date of production/manufacture or age of Carrier ® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from as ...The serial number on a Goodman furnace is typically 10 characters long. The first four digits represent the year and month that the furnace was manufactured, and the last six digits are unique to each furnace. ... If you have the serial number for your Goodman furnace, you can use it to determine the age of your unit. The first four digits of ...How to determine the date of production/manufacture or age of Trane ® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from …1995 Goodman Furnace Serial Number Location; ... R = 1964 S = 1965 T = 1966 U = 1967 How to Determine Furnace Age Serial numbers prior to April 1992=1st two numbers. Goodman Manufacturing has expanded its furnace offering by adding a D-width (24-1/2") to the popular GMVC96 and AMVC96 furnaces in the 100MBH, 5 ton size. ...How to determine the date of production/manufacture or age of American Standard® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers …How to determine the date of production/manufacture or age of American Standard® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary ...Warranty Lookup. * Serial#. * Model. * Last Name. Zip Code. * Install Type. Residential Commercial Multi-Family. * Homeowner last name must be entered and verified to display complete limited warranty coverage.Millions of Americans rely on furnaces to stay warm and comfy when the weather’s cold. Many homeowners, however, balk at the cost of keeping these major appliances running. Althoug...A ton of air conditioning equals 12,000 BTU, and 48 divided by 12 equals 4, so the data plate below indicates the system is 4 tons. Here's a rundown of the range you will encounter: 18 = 1.5 tons, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons, and 60 = 5 tons. And this is another one for a 3 ton system.1st Classification: Goodman Single Stage Furnaces: These furnaces operate at a single heating output level, typically full blast.They are cost-effective but may be less energy-efficient compared to other types. Goodman Two Stage Furnaces: These furnaces have two heating stages, allowing them to adjust heat output based on the demand.This results in improved energy efficiency and better comfort ...The second two numbers of the serial number are the year of manufacture, so the data plate for the Lennox furnace shown below indicates it was produced in 2013. To determine other key specs of your HVAC system, see one of these other blog posts: • How do I determine the age of my air conditioner?By determining the age, you can assess whether your system is approaching the end of its useful life and make informed decisions about repairs, upgrades, or replacements. Manufacturer’s Date Code or Serial Number. The age of an HVAC system is often encoded in the manufacturer’s date code or serial number.The Goodman serial number is a ten digit code that helps us identify the age of goodman air conditioner. The date of manufacture is coded in the 1st four digits of the goodman serial number. These four digits code represent the year and the month of manufacture. Serial Number Lookup & Examples #1305754230 Now I will explain how to read the ...© 2011 Goodman Manufacturing Company, LP. All rights reserved. ... Info Finder Home BackHow to determine the date of production/manufacture or age of Williams® HVAC Systems. The date of production/manufacture or age of Williams® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Williams Furnace Company.Monday, April 22, 2019. Tempstar is manufactured by International Comfort Products, LLC, and the first two numbers in the serial number (after a single letter) are the year of manufacture. So the serial number on the data plate below indicates the unit was manufactured in 2013. To determine the sixe in tons of an Tempstar system, see our blog ...How to determine the date of production/manufacture or age of Fedders® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary from …The manufacture year is--> 1997. The age of the equipment is--> 23. OTHER INFORMATION. Style 1. The sequence numbers are--> 011000. Mobile/Desktop …Goodman Date Codes. The 1st and 2nd digits of the serial number are the year. The 3rd and 4th digits of the serial number are the month. Goodman: Model No.: CKJ60-1, SN: 0107415182, was manufactured in 2001, July. Goodman: Model No.: GSC130481AA, SN: 0606111539 was manufactured in 2006, June.So the serial number shown below on the data plate of a package heat pump indicates that it was manufactured in 2017. There is also a second serial number system that has a letter at the third digit, and uses the second and fourth digits for the year of manufacture. So W 1 G 2 076523 indicates production in 2012.Discover Goodmant registration FAQs of newly purchased and installed air conditioner, gas furnace, heat pump, packaged unit or other Goodman HVAC products.The 1st thru 4th digits of the serial number represent the decade, specific year of the decade, and production week of that year. Style 4: ... Inspectors, HVAC professionals, Facilities Managers, HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). This web …Goodman started in 1975 [/size] I already had this information concerning Goodman furnace age. Here is a great site to get information about HVAC equipment age. [/size] lkage (Larry Kage, CMI) March 23, 2010, 8:26pm 3. ccurrins: [size=2]January 2001 [/size] First two digits of the serial number are the year.How can I tell the age of a Goodman air conditioner from the serial number? The first two digits of the serial number are the year of manufacture for a Goodman heat pump or air conditioner. This unit was manufactured in 2013. However, if you have an older furnace, you may need to use your detective skills.Locate the serial number. One of the easiest ways to determine furnace age is by serial number. Most furnaces should have a sticker listing the serial number and manufacturer either on the exterior or inside the removable door on the front of the unit. When you find it, write down the serial number and search the manufacturer's site or manual ...1995 Goodman Furnace Serial Number Location; ... R = 1964 S = 1965 T = 1966 U = 1967 How to Determine Furnace Age Serial numbers prior to April 1992=1st two numbers. Goodman Manufacturing has expanded its furnace offering by adding a D-width (24-1/2") to the popular GMVC96 and AMVC96 furnaces in the 100MBH, 5 ton size. ...Serial Number format: L943321238 (This serial number is from an actual furnace). Date of Manufacture: Using the second, third, fourth and fifth digits of the serial number L. 9433. 21238 you will find the year and week of manufacture. The second and third digits are the year of manufacture and the fourth and fifth digits are the week. 5th & 6th digits = Year. How to Determine Furnace Age. Maintained by send suggestions to [email protected] Page 8. 80 = 1980 81 = 1981 82 = 1982 right on thru. The year 2000 started the numerical numbering from 00. 00 = 2000 01 = 2001 02 = 2002 right on thru to current date. Here is a breakdown of the year codes for Goodman air conditioners: Examples: Serial number starting with “01” indicates a manufacturing year of 2001. Serial number starting with “12” indicates a manufacturing year of 2012. Serial number starting with “19” indicates a manufacturing year of 2019. Serial number starting with “20 ...ADP® HVAC age. How to determine the date of production/manufacture or age of ADP® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average service design life for most air conditioning condensing units is 10-15 years. The average service design life of boilers can vary ...Saturday, July 21, 2018. The first two digits of the serial number are the year of manufacture for a Goodman heat pump or air conditioner. This unit was manufactured in …Use Goodman's online warranty confirmation tool to determine of coverage is available.Saturday, June 23, 2018. The Janitrol brand was manufactured by Goodman Manufacturing Company from 1982 to the mid-1990s. The serial number system was the same as for Goodman systems, which is that the first two numbers are the year of manufacture. The data plate on the side of the unit also had Goodman Manufacturing listed at the top.{{ngMeta.description}}Goodman Manufacturing Introduces U.S. Alumacoil as Coil and Air Handler Manufacturer by HVAC Distributors July 16, 2015. Goodman Manufacturing issued Product Marketing News (PMN) C-GN-OT-972 announcing that safety and rating plates on common coils and air handlers will list U.S. Alumacoil™ as the manufacturer, starting with units produced August 2015.

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goodman furnace serial number age

Step 3: Look Up the Serial Number. Determine the age from the serial number if possible. Some serial numbers can be interpreted by weeks and years. So a number reading 1193CA4567 would be dated as the 11th week of 1993. Serial numbers from furnaces made after the year 2000 are often easier to decipher. For example, the serial number might have ...Goodman Furnace Serial Number Location On Box >>> http://shorl.com/hylykabrujyme Goodman…Furnace…Parts:…Fast…Shipping…RepairClinic.com. https://www ...• Furnace • Indoor Coil • Air Handler • Thermostat • Air Cleaner • Humidifier • Energy Recovery Ventilator. Packaged Unit • The serial number label is located on the rear panel of the outdoor unit. Air Conditioner or Heat Pump • The serial number label is located on the top, right-rear of the outdoor unit.To determine the age of Carrier AC or Furnace, only the first 4 are relevant. Here is an example of a Style 1 Carrier Serial Number: 3312 A18212. The first two digits ’33’ tell you in which week of the year the unit was manufactured. 33 means the 33rd week of the year; that’s in the middle of August.Series Number. The first three digits, that is G26 in the above example can tell us about the series number of the product. G here stands for Gas and 26 means 26th unit produced in the lot. Unit capacity or Size. The next three digits, that is Q3/4 can tell you about the capacity and size of your furnace unit. Q3/4 here refers to 3-ton or 4-ton ...York Serial Number is important to identify the date of production or age of YORK® air conditioner and furnace. The serial number (and model number) also needed when you want to check the warranty status.York serial number has sorted into two different serial numbers, the old serial number used from 1971 through 2004 and new serial number nomenclature used from 10/6/2004 through today's.The first 4 digits, GXCC represent the model number, and the last 6 digits represent the serial number of that specific unit. Goodman furnace serial numbers are usually on the bottom of the unit or on the side of the unit. Goodman furnaces use a two-digit code to identify the year it was made. For example, if your furnace is missing its serial ...Goodman ac age typically lasts 10 -15 years but there are instances when they can last much longer. Like most things, usage, maintenance, and installation type will determine how long the unit last. You can determine the age by locating the serial number that is on the data plate. Every Goodman air conditioner has a data plate on it that ...Goodman furnaces are known for their reliability and efficiency. However, like any other HVAC system, they can occasionally run into problems. When your Goodman furnace stops worki...Locate the serial number on your Lochinvar water heater and check the first letter. Match the letter to the chart below and you will decode your water heater's age by the year of manufacturing. A = 1984, 2004. B = 1985, 2005. C = 1986, 2006.Goodman: Goodman serial numbers are 10 digit numerical where the month and year are encoded in the first 4 digits. The year is the first 2 and the month the second 2. For example 1404123456 is manufactured is April 2014. Rheem/Ruud: Modern Rheem systems use two styles of date encoded in the serial number.Gas Furnace. Up to 96% AFUE. Product Overview. GM9S92. ★★★★★ ★★★★★. 4.6. Up to 92% AFUE Upflow Multi-Position Installation. Product Overview. Find the best selection of Up to 98% AFUE Gas Furnaces at Goodman - HVAC products designed, engineered and assembled in the USA!Write down—or take a photo of—the serial number to keep for your records. Then head to the manufacturer's website or search for guides on how to identify the manufacturing date. You may try searching for "find manufacturing date of YOUR BRAND furnace.". The serial number normally provides insight into the age of your system, but it ...When it comes to installing or troubleshooting a Goodman furnace thermostat, proper wiring is essential for optimal functionality and performance. However, there are some common mi...The 1st thru 4th digits of the serial number represent the decade, specific year of the decade, and production week of that year. Style 4: ... Inspectors, HVAC professionals, Facilities Managers, HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). This web …Subscribe to our YouTube Channel: https://www.youtube.com/c/internachi?sub_confirmation=1 Learn how to determine the age (or manufacturing date) of the HVAC ...Use Goodman's online warranty confirmation tool to determine of coverage is available.For example, a Goodman brand gas furnace with an AFUE rating of 98% indicates that for every $1.00 of energy used to operate the furnace only two cents is not fully utilized. Seasonal Energy Efficiency Rating is the term used to identify the air-cooling efficiency rating of a heat pump. The higher the rating number the more efficient it is ...Serial Number format: L943321238 (This serial number is from an actual furnace). Date of Manufacture: Using the second, third, fourth and fifth digits of the serial number L. 9433. 21238 you will find the year and week of manufacture. The second and third digits are the year of manufacture and the fourth and fifth digits are the week.Age of Goodman A/C condenser unit. Specific Inspection Topics Inspecting HVAC Systems. pbarker (Patrick W. Barker) September 27, 2006, 1:16am 1. I can't find my cheat sheet and want to make sure I get the date of manufacture correct for future use. Serial # 9601095027..

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