Goodman air conditioner age by serial number

How to find the serial number an air-conditioner coil for service parts. Skip to main content. $5.00 off shipping w/ code SHIP4LESS. Int customers responsible for duties + taxes. Free shipping on store pickup orders. Menu. Talk to a HVAC Parts Pro! USA: 866-215-3831 CAD: 913-825-6891. Search by part # Search Keyword: Search.

E = 1975 or 1996 F = 1976 or 1997. G = 1977 or 1998 H = 1978 or 1999. J = 1979 or 2000 K = 1980 or 2001. L = 1981 or 2002 M = 1982 or 2003. N = 1983 or 2004 P = 1984 R = 1985. S = 1986 T = 1987 V - 1988. W = 1989 X = 1990 Y = 1992. So WD H P875237 would be either 1978 or 1999. And here's an example below that could be 1980 or 2001 but, but we ...How to determine the date of production/manufacture or age of Champion Cooler brand HVAC equipment. The date of production/manufacture or age of Champion Cooler brand HVAC equipment can be determined from the serial number located on the data plate. Parent Company: Champion Cooler a subsidiary company of Essick Air Products, Inc. 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 GSX14 Air Conditioner by Goodman has 14 SEER Performance. Learn more about Goodman Manufacturing AC systems today! Saturday, June 23, 2018. Johnstone is a brand manufactured by the Goodman Company, and the year of manufacture is the first two digits of the serial number. So the serial number on the Johnstone furnace data plate shown below indicates it was manufactured in 1992.Goodman's historically inferior quality compared to other top brands. Experts suggest Goodman offers good value for a 12-15 year lifespan, but for a dependable 20-year AC, consider other brands. Your climate and usage. GSX13 and GSX14 models are suitable for cool climates or infrequently used spaces, while higher SEER models (GSX16, DSXC16 ...3 Ton 14 SEER ACiQ Air Conditioner Condenser. Rating: 12 review (s) Your Low Price $1,381.00. 3 Ton 15 SEER ACiQ Air Conditioner Condenser. Rating: 1 review. Your Low Price $1,550.00. 3 Ton 13.4 SEER2 ACiQ Air Conditioner Condenser.

Nov 2, 2023 · You can find the age of American Standard HVAC by decoding the serial number. The production date can be found in the first 4 or 5 digits of serial number. Here we have an example of serial number nomenclature and how read it. Serial Number #7236TPW3F – This style of serial number are used from 2000 – 2009. Technical Specifications. ModelCAPF/CAPFA Series. TypeCoil. Energy CertifiedNo. Liquid Line Connection Size 3/8 in. ComfortBridge™ CompatibleNo. Product Shipping Weight 33.000 lb. Tonnage 2 - 5 tons.This listing includes: Goodman 3 Ton 13 SEER Air Conditioner Model: GSX130361 ; This comes with a 10-year parts limited warranty provided it is installed by a qualified installer and registered online with 60 days of installation ; Accessories such as linesets, thermostats, sold separatelyHow to determine the date of production/manufacture or age of Tempstar® HVAC Systems. The date of production/manufacture or age of Tempstar® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: ICP. Example serial number styles/formats found: Style 1: G051650885; Style 2: L920671787;Let's explore that in the next section. You can determine the age of your air conditioner by locating the serial number on the unit. The first four digits usually represent the week and year of manufacture. For example, a serial number starting with 0415 indicates the unit was made in the 4th week of 2015.

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 …Serial Number Example: CR3949348. 1st Digit: Where the appliance was manufactured. C = Clyde, OH. 2nd Digit: Year Manufactured. R = 2004. 3rd & 4th Digit: Week the appliance was manufactured. 39 = 39th week of the year. 5th-9th Digit: Manufacture order that week. See the charts below for the year codes:How to determine the date of production/manufacture or age of ICP® HVAC Systems. ... Description: Ten (10) character Serial number begins with one (1) letter digit followed by nine (9) numerical digits. Year of manufacture is 2nd-3rd character numerical digits Month of manufacture is 4th-5th character numerical digits.What does Goodman air conditioner serial number 9509000600 tell you? 95 is the year it was built and 09 is the month it was built. How old is Goodman Air Conditioner Serial No 9312062694?Most companies encode the year of manufacture in the serial number, but Fujitsu does not. You can call the Fujitsu Service Department, at (866) 952-8324, with your serial number and they will give you a date. They advised us that the heat pump condensing unit with serial number "KRN016885," shown below, was shipped in January, 2013.

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The Serial Numbers shown are utilized with all Paloma Brand systems. Style 1: 1204D01234; Style 2: OR177 M2807 00097; Style 3: W291013412 ... HOA’s, etc.., in determining the date of manufacture and/or age of HVAC equipment to determine the expected useful life (EUL). This web site should not be relied upon for commercial use or ...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. Discover the energy-efficient, affordable, Goodman GPHM3 Packaged Unit Heat Pump with energy-efficient compressor, up to 13.4 SEER2, and up to 6.7 HSPF2.The date of production/manufacture or age of Panasonic® HVAC brand equipment can be determined from the Production Year number located on the data plate along with the serial and model number. ... Example serial number styles/formats found: Style 1: Serial # 078910763 R with Production year 201011; Back to Brand Listing. Style 1: 0789107063 R ...When you need Goodman air conditioner troubleshooting tips, choose our helpful guide to ensure you can determine the issue and get a solution quickly. ... Cool technology to make finding and buying parts a breeze, including Serial Number Lookup, PartSPIN® and Smart Manuals, found on partstown.com and our industry-leading mobile app ...

Nordyne® HVAC age. How to determine the date of production/manufacture or age of Nordyne® 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 ...Franklin is a brand of inverter-type HVAC system manufactured by Goodman and uses their serial number encoding system. The first two numbers of the serial number are the year of manufacture. So the data plate shown below indicates the unit was manufactured in 2018. To find out the age of another brand of air conditioner or heat pump, go to How ...Sears used multiple different manufacturers over the years to produce air conditioners and heat pumps that they sold under their Kenmore brand. So there is no single recipe for figuring out age from the serial number. But, if you are pretty sure that the unit was manufactured after 1990, which eliminates earlier mutations, it narrows down to ...Goodman Air Conditioner Prices. The price of a Goodman air conditioner ranges from $3,188 to $4,275 in installation costs.Your total cost to replace an AC unit will depend on the size in tons of the air conditioning system needed for your home and the SEER rating wanted. Goodman offers SEER ratings from 13 to 18 SEER. For a 1,600 …Products /. Heat Pumps. Goodman ® is one of the biggest names in home cooling, heating and energy-efficient home comfort. That's because Goodman lives up to its name in a big way, with time-tested energy-efficient technology, highly durable materials and spot-on manufacturing. So, no matter where you live or whether your home is small or ...For Amana, Goodman and York International-branded units call 800-366-0339 from 8 a.m. to 5 p.m. CT Monday through Friday. For Comfort-Aire and Century-branded units call toll-free at 877-442-4482 from 8 a.m. to 5 p.m. ET Monday through Friday. For all products, go to www.amana-ptac.com and click on Recall Info at the bottom right corner of the ...In many cases, one can determine the date of manufacture of an air conditioning unit by means of the serial number. However, different manufacturers encode the dates onto the seria...The Amana Serial Number is located on the exterios AC data plate. As I state above, Amana data plates is identical to a Goodman data plate. It's located on the top rear area of the unit. You can find the data plate by removing the top-front service panel and looking to the left side of the exterior AC/Furnace unit.Kenmore model 580. 75121 room unit air conditioner Wiring Diagram", Sears Roebuck window air conditioner wiring diagram for a typical room or window air conditioner; SEARS KENMORE WATER HEATER AGE & MANUALS - information about domestic hot water heaters by Sears, Sears Roebuck, or Kenmore; Sears Heating Equipment Age Decoder from Serial Number

Goodman GSX130421 - Goodman 3.5 Ton 13 SEER Central Air Conditioner w/ R410A Refrigerant- To receive the 10-Year Parts Limited Warranty, online registration must be completed within 60 days of installation" if they do not they will only have 5 years of coverage. Please note: This product is not available for sale in the following states: AL, AR, AZ, CA, DE, FL, GA, KY, LA, MD, MS, NC, NM, NV ...

But they are still the way to know the age of the air conditioner. While the first one contains ten digits and one letter, this second one contains nine digits and no letters. For instance, you may see the digits 950305071; the first two digits represent the year of manufacture, which is 1995. The next two digits represent the month of ...The model and serial number can be found on the rating plate of your air conditioner. This is generally found slightly above the refrigerant valves on the back side of the unit. The serial number is a ten digit code that helps Goodman identify the time the unit was produced, as well as the model number and many of the sub-components used on a ...Goodman Manufacturing is an American company operating as an independent subsidiary of Daikin Group, the world's largest manufacturer of heating, ventilation and air conditioning products and systems. The company, founded in 1975 and based in Waller, Texas, manufactures residential heating and cooling systems.. Goodman is located just outside Houston, Texas, in the $417 million Daikin Texas ...Amana® HVAC age. How to determine the date of production/manufacture or age of Amana® 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 can I tell the age of an Ameristar air conditioner or furnace from the serial number? Thursday, June 14, 2018. Ameristar is an HVAC brand manufactured by Ingersoll Rand, and the first two numbers of the serial number are the year of manufacture. So the heat pump condenser data plate shown below indicates the unit is from 2018.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 format and location of the date code can vary among manufacturers, but it typically contains information about the production date or year of the unit. ... Your home's heating and air conditioning ...We have 1 Goodman GSC130481AF manual available for free PDF download: Service Instructions Manual Goodman GSC130481AF Service Instructions Manual (69 pages) Split System Air Conditioners, Split System Heat Pumps with R-22 Refrigerant Blowers, Coils, & AccessoriesHow 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 ...Style 2: " 8606 02134″. This Carrier AC was produced in June of 1986. Style 2 format was used by Carrier in the '80s. These air conditioners and furnaces are now about 40 years old. Style 3: " S5 D16399″. This is a Carrier furnace that was produced in June 1985. Style 3 format was also used by Carrier in the '80s.

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Goodman GSX130421 - Goodman 3.5 Ton 13 SEER Central Air Conditioner w/ R410A Refrigerant- To receive the 10-Year Parts Limited Warranty, online registration must be completed within 60 days of installation" if they do not they will only have 5 years of coverage. Please note: This product is not available for sale in the following states: AL, AR, AZ, CA, DE, FL, GA, KY, LA, MD, MS, NC, NM, NV ... Style 2: “ 8606 02134″. This Carrier AC was produced in June of 1986. Style 2 format was used by Carrier in the ’80s. These air conditioners and furnaces are now about 40 years old. Style 3: “ S5 D16399″. This is a Carrier furnace that was produced in June 1985. Style 3 format was also used by Carrier in the ’80s. 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.Oct 4, 2023 · KEY TAKEAWAYS. To determine the age of a Goodman AC unit, locate the unit’s serial number, usually found on the data plate or rating plate. Decode the serial number; the first four digits represent the year and month of manufacture. The first two digits are the year, and the third and fourth digits are the month. Nov 9, 2023 · The Goodman air conditioner age code can be determined by decoding the serial number, which contains the manufacturing date. It is important to know the age of your air conditioner for proper maintenance and warranty purposes. Goodman air conditioners are known for their reliability and efficiency, but like any appliance, they have a lifespan. Year of manufacture is 4th & 5th digits of the serial number combined. Month of manufacture is 6th & 7th digits of the serial number combined. Please consider a single donation of $5, $10, $20, $50 or more…Find the letter in the middle or beginning of the serial number. The first two numbers after it are the week of manufacture, and the third and fourth numbers after the letter are the year of manufacture. The month and year of manufacture is also indicated at the upper right of the data plate. So the “G0994” in the serial number below means ...A Goodman air conditioner costs $3,200 to $6,500 on average with installation or $1,200 to $4,500 for the unit alone. Goodman air conditioner prices depend on the size, model, and energy efficiency or SEER rating. A 3.5-ton Goodman AC unit costs $4,200 to $5,700 installed.Panasonic® – Samsung® – Sanyo®. How to determine the date of production/manufacture or age of Panasonic®, Samsung® or Sanyo® HVAC Systems. The date of production/manufacture or age of Panasonic® HVAC brand equipment can be determined from the Production Year number located on the data plate along with the serial and model number.How do I determine the age of an Intertek ETL heat pump or air conditioner from the serial number? Saturday, March 5, 2022 Although the Intertek logo appears prominently on the data sticker of many Japanese, Korean, and Chinese HVAC units, it is not a manufacturer.Panasonic® – Samsung® – Sanyo®. How to determine the date of production/manufacture or age of Panasonic®, Samsung® or Sanyo® HVAC Systems. The date of production/manufacture or age of Panasonic® HVAC brand equipment can be determined from the Production Year number located on the data plate along with the serial and model number.The Amana Serial Number is located on the exterios AC data plate. As I state above, Amana data plates is identical to a Goodman data plate. It’s located on the top rear area of the unit. You can find the data plate by removing the top-front service panel and looking to the left side of the exterior AC/Furnace unit. ….

How to determine the date of production/manufacture or age of York ® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 years, and the industry average …How to determine the date of production/manufacture or age of Bosch® 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 little ...Friday, June 22, 2018. Frigidaire is a brand manufactured by Nortek (formerly Nordyne) and the fourth and fifth digits of the serial number are the year of manufacure for most units. So the data plate for a package heat pump shown below indicates it was manufactured in 2001. An older format uses five numbers followed by a dash, and then the ...Goodman Draft Inducer Motor. Genuine OEM Part # 0171M00001S | RC Item # 3342922. Reviews. Skill Level. We sell the real thing! Watch Video. $163.58. Draft inducer motor replacement. If mounted horizontally, related items are needed for replacement motor.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 ...Saturday, June 23, 2018. Johnstone is a brand manufactured by the Goodman Company, and the year of manufacture is the first two digits of the serial number. So the serial number on the Johnstone furnace data plate shown below indicates it was manufactured in 1992.Have a day and night air conditioner with a model number 585HJ042060 and serial number of 1985C87813 would like to confirm that indeed this model exist. What is th goodman air conditioner model. ....How to determine the date of production/manufacture or age of ASPEN® HVAC Systems. The date of production/manufacture or age of ASPEN® HVAC equipment can be determined from the serial number located on the data plate. Parent Company: ASPEN Manufacturing. Example serial number styles/formats found: Style 1: J04-00017662; Goodman air conditioner age by serial number, Nov 19, 2023 · Amana® HVAC age. How to determine the date of production/manufacture or age of Amana® 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 ... , Bard® HVAC age. How to determine the date of production/manufacture or age of Bard® 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 ..., The date of production/manufacture or age of Frigidaire® HVAC equipment can be determined from the serial number located on the data plate. ... Description: Nine (9) character serial number (includes the dash (-)) that begins with five (5) numerical digits followed by a dash (-), two more numerical digits and ends with a letter. ..., Oct 22, 2015 ... Learn how to determine the age or manufacturing date of the HVAC (heating, ventilation, air conditioning) system during a home inspection., Amana is manufactured by Goodman and the newer Amana model number format follows the Goodman model number style. The 6th or 7th and 8th digits are usualy indicates the tonnage system. #ANZ140361AA (Up To 15 SEER Energy-Efficient Amana Heat Pump , 2 – 5 Tons) #APC1536H41** (Up to 15 SEER High-Efficiency Packaged …, The first two numbers of the serial number, after a single letter, are the year of manufacture of the unit for an International Comfort heat pump. So data plate of the condenser shown below indicates it was produced in 2013. ... For the age of another brand or manufacturer, go to our blog post How do I determine the age of my air conditioner?, The date of production/manufacture or age of Dettson® HVAC equipment can be determined from the serial number located on the data plate. ... Description: Ten (10) character Serial number begins with a single letter followed by nine (9) numerical digits. Year of manufacture is 2nd-3rd characters. Month of manufacture is 4th-5th characters., The date of production/manufacture or age of LSB Industries, Inc. Brand HVAC equipment can be determined from the serial number located on the data plate. ... Description: Nine (9) character Serial number begins with two (2) numerical digits followed by a single letter digit and ends with six (6) numerical digits., Products /. Air Conditioners. Goodman ® is one of the biggest names in home cooling, heating and energy-efficient home comfort. That’s because Goodman lives up to its name in a big way, with time-tested energy-efficient technology, highly durable materials and spot-on manufacturing. So, no matter where you live or whether your home is small ..., Sears used multiple different manufacturers over the years to produce air conditioners and heat pumps that they sold under their Kenmore brand. So there is no single recipe for figuring out age from the serial number. But, if you are pretty sure that the unit was manufactured after 1990, which eliminates earlier mutations, it narrows down to ..., How to determine the date of production/manufacture or age of Gibson® HVAC Systems. The date of production/manufacture or age of Gibson® HVAC equipment can be determined from the serial number located on the data plate. ... Gibson Heating and Air Conditioning Customer Service 8000 Phoenix Parkway O’Fallon, MO 63368. Or by …, 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 site should ..., 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 ..., The second and third digits indicate the year of manufacture. For example, “19” represents the year 2019. The fourth and fifth digits signify the month of manufacture. For instance, “01” represents January. By decoding the serial number, you can uncover the manufacturing date of your Daikin air conditioner., Most companies encode the year of manufacture in the serial number, but Fujitsu does not. You can call the Fujitsu Service Department, at (866) 952-8324, with your serial number and they will give you a date. They advised us that the heat pump condensing unit with serial number “KRN016885,” shown below, was shipped in …, Select the brand from the drop down menu. 2. Next select the model number from Model drop down box. 3. Move through the remaining menus. 4. Once all menus have been satisfied push the SUBMIT button. 5. To reset the search for a new search click the SEARCH button., GSXN3. Energy Efficient Split System Value. Up to 14.5 SEER2 Performance. 1½ to 5 Tons. ★★★★★ ★★★★★. 4.8. Looking to replace your AC, heat pump, gas furnace or packaged unit for your home? Explore the affordable products by Goodman Manufacturing!, Step 2: Identify the Serial Number Format. GE serial numbers may use several different formats, depending on the age and type of the appliance. Some common formats include: Letter followed by six digits: This format was used from 1972 to 1980 and identifies the manufacturing date. The first letter represents the month (A=January, B=February ..., Serial Number Nomenclature - ICP, TempStar and Heil Parts. International comfort products f8mvl installation instructions manual Heil comfortmaker age hvac building center style year h551 Goodman air conditioner serial number lookup : goodman model clt48-1b. Icp manuals, parts lists, wiring diagrams, How Old Is My Goodman Air Conditioner | Cracking the Code! The age of your Goodman air conditioner can be determined by using the serial number. You can find the unit's model and serial numbers on a..., Bard® HVAC age. How to determine the date of production/manufacture or age of Bard® brand HVAC Systems. The industry average service design life for most forced air furnaces is 15-20 …, Goodman Repair Parts Goodman HVAC Replacement Parts All Categories Blower Motor (132) Capacitor (21) Circuit Board (35) Condenser Fan Motor (46) Contactor (3) Fan Blade (16) Flame Sensor (2) Flue Collector Box (13) Gas Valve (9) Heat Exchanger (11) Ignitor (15) Limit Switch (14) Pressure Switch (29) Propane Conversion Kit (1) Transformer (0 ..., What does Goodman air conditioner serial number 9509000600 tell you? 95 is the year it was built and 09 is the month it was built. What is the seer rating and date of manufacture of a Goodman ..., 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. 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?, We have 1 Goodman GSC130481AF manual available for free PDF download: Service Instructions Manual Goodman GSC130481AF Service Instructions Manual (69 pages) Split System Air Conditioners, Split System Heat Pumps with R-22 Refrigerant Blowers, Coils, & Accessories, Average Cost: $3,188 - $4,275. A standard Goodman air conditioner will range from $3,188 to $4,275 in installation costs. The range varies by the AC model and SEER rating you choose plus the local labor costs in your region. Find Local Pros. Updated: Mar 27, 2024 · Written By: Rob Sabo · Reviewed By: Catie Bonner., How to determine the date of production/manufacture or age of Ruud® 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 little ..., Nov 19, 2023 · Amana® HVAC age. How to determine the date of production/manufacture or age of Amana® 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 ... , Goodman HVAC Age: Serial Number Decoding for AC, Furnace Heat Pump. How many tons is my Goodman air conditioner or heat pump? Find many great new used options and get the best deals for White-Rodgers 50A55-743 Furnace Control Board, Goodman PCBBF112S PCBBF123S at the best ... Goodman Ton Air Conditioner Heating System for Sale in Miami, FL OfferUp., This serial number style was only used during the months of April & May 1980. June 1980 to Current Sample number 123 H 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., Brand info that may help determine an age or era. Select one of the drop-down lists below. that corresponds to the 1st letter. of your HVAC brand name. Then make your selection from the Brand Names list. HVAC - A. HVAC - B. HVAC - C. HVAC - D., Your dual capacitor is round with three electrical prongs on top and can be found inside the electrical control panel of your air conditioner. There is a label on the front of the capacitor that lists the part number and specifications of your capacitor. (5) Is the "Free Capacitor" included with some condenser fan motors a dual run capacitor?, Saturday, June 23, 2018. Johnstone is a brand manufactured by the Goodman Company, and the year of manufacture is the first two digits of the serial number. So the serial number on the Johnstone furnace data plate shown below indicates it was manufactured in 1992.