KC I would decode an AO Smith water heater serial number MB00-0070742 as follows:Factory M. My AO Smith water heater serial number is MB00-0070742. 
Let's have a "sanity check" - what are the country and city of your water heater and what is the age of the building where it's installed?The company's more-recent water heater data tags encode the year asYYWW123456 where YY = year and WW = week number from 1-52Please attach a sharp photo of the data tag found on your water heater by using the add image button, Trying to figure out year of hot water heater. See the Month Decoding table given below. On 2022-06-20 by InspectApedia (mod) - longlasting 1972 A.O. Ser# YYWW123456 example 1604123456 decodes to YY=Year=2016 and WW=Week No. The serial number displays the month and year of construction. What is required clearance for access and working space in front of an electric water heater? Why do water heaters have a sacrificial anode? Remote control not communicating with the water heater, check remote batteries, line of sight. Is it alright to have a shut-off valve on both the hot and cold water pipes at a water heater? Smith continued its devotion to technology and innovation as it developed or improved on several manufacturing processes including production line automation, an improved method of welding, and the process of fusing glass to steel which led to glass-lined beer kegs, brewery tanks, and residential water heaters. The serial number may be found on the label near the bottom of the water heater. @Lolita Smith, Take a look at your water heaters serial number to decipher your water heaters age to determine if it is time for a water heater replacement. Our Comment Box is provided by Countable Web Productions countable.ca, Click to Show or Hide Citations & References, AO Smith Water Heater Installation, Repair, CONDENSING WATER HEATER TROUBLESHOOTING GUIDE, INSTALLATION INSTRUCTIONS FOR 6 (15 cm) CONCENTRIC VENT TERMINATION DIRECT VENT SIDEWALL VENT MANUAL, PROMAX ELECTRIC WATER HEATER 30 GALLON MANUAL, PROLINE 50 Gallon LOWBOY MOBILE HOME WATER HEATER MANUAL, RESIDENTIAL GAS & ELECTRIC WATER HEATER SERVICE HANDBOOK, AO SMITH GAS & ELECTRIC WATER HEATER SERVICE MANUAL, AO SMITH ELECTRIC WATER HEATER WIRING INSTRUCTIONS, INSTRUCTION MANUAL, GAS WATER HEATERS MODEL GDV GDVT, AO SMITH RESIDENTIAL GAS WATER HEATER MANUAL, AOS Bulletin 13 WATER HEATER MINERAL BUILD-UP, AOS Bulletin 14 HEATER ALUMINUM HYDROXIDE, AO SMITH WATER HEATER DE-LIMING INSTRUCTIONS, AOS Bulletin 11: WATER HEATER WATER HAMMER, AOS Bulletin 51 WATER HEATER PUDDLE ON FLOOR, TAKAGI WATER HEATER MANUALS, AGE, ERROR CODES, AO Smith DIAPHRAGM WELL TANK INSTALLATION MANUAL, A.O. @Mike Marcoe, Age decoding guide for water AO Smith water heaters, manuals, repair & maintenance guides. What is backdrafting at a gas water heater? A more realistic limit would be to use the last tankful down to about 100degF which would reduce the temperature differential to about 30 degrees over ambient the off period.Calvin W. Ek, P.E. Register your product with us so that we can optimally assist you with maintenance or additional products. Work on these heaters must be by a qualified service professional. Fast forward to today and the furnace was still turned on. The device was produced in 2020. So the data plates shown below indicate that the water heaters were manufactured in 1989 and 2004. Also see AO Smith water tanks & well tanks: If your AO Smith condensing water heater code includes a circuit board or remote control it can show an error code. Black plastic cover exploded onto floor under heater. Smith tankless on-demand water heater from the serial number?To determine the age of another manufacturer/brand of water heater, go to How do I determine the age of my water heater? Photos: Above: an A.O. Why is an older water heater an insurance problem? When was a gas water heater first required to be elevated 18 inches above a garage floor? Visit our WATER HEATERSpage for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles. Please consider a donation. And that'll make it easier for me to research its publication date. For older and current models, A.O. Smith Water Heater(s) from the serial number.
Smith water heater is ME98-0084152-H43 Can I leave a gas water heater in place when remodeling a garage into a family room or bedroom? It's a safety device focused on proper gas ignition. I'm assuming you have an AO Smith water heater since you're on this page. check remote sensor wiring, remote control access line of sight. Selecting this will disable this pop up for 30 days if cookies are enabled and not cleared. Temperature cutoff points range from 160C to 200C depending on model. The second set of digits represent the week of manufacture. The first 2 are the year and the second 2 are what week it is. That means it was produced between September 7 and 13, 2020. We are not affiliated with, and do not receive any compensation from, any of the companies or products mentioned in this blog. Other AO Smith water heaters that may be sold under different brand names include Glascote water heaters, National water heaters & Perma-Glas water heaters. John Cranor [Website: /www.house-whisperer.com ] is an ASHI member and a home inspector (The House Whisperer) is located in Glen Allen, VA 23060. 
Similar to style 2 above. For AO Smith warranty questions outside of New York, please call 1-800-527-1953. Check for a blown fuse on the circuit board.
Ser# YYWW123456 example 1604123456 decodes to YY=Year=2016 and WW=Week No. When was a gas water heater first required to be elevated 18 inches above a garage floor? and How do I determine the age of an electrical panel? Smith Water Heater Age Determination- reader comment: (May 11, 2012) AO Smith employee said: To tell the age of any AO Smith water is the first 4 numbers. Ser# GB92-03123456-789 decodes to Factory ID=G, Month=B or February, Year=92 or 1992. Model number is KGA 40 800 The A is for the month and the 00 are the year. Have a Kenmore Power Miser 6 Model 220.394100 serial# S 0897C11602 what is the year of manufacturing? Department there and make the serial plates all the time. Smith water heater?2. Replace the thermistor if you don't see a loose or disconnected wire.
Smith grew into an integral part of the automobile revolution when it developed a new lightweight steel car frame in 1899. The installation itself was actually something that I was going to double check. I would leave the heater off pending proper repair. What does it mean when a water heater Temperature/Pressure Relief (TPR) discharge pipe is "trapped"? Ser# MMYY1234567 - example: Ser# 03991234567 decodes to March 1999 this older style AO Smith water heater date code decodes as shown where MM = month and YY = 2 digit year. Ser# FB00A123456 that's explained in the article, as Ser# FB00A123456 decodes to F=Factory code, B=month code using A - N for January - December (the letter I is not used) and the next two digits encode the year. What are the most common installation mistakes with water heater replacement? The home was built in 1972. Give us a call and let us help you!
Example: If the Rheem serial number is 1110****** then the water heater was constructed in November 2010. Thank you. What is the difference between a manufactured/mobile home water heater and a regular water heater? SN # F06A147109. Jack,AO Smith water heater age decoders are given on the page above.Your format SN # F06A147109 looks closest to this decoding example given above For water pressure tank age or water storage tank age, see, Scott C. LeMarr has provided his file of keys to decode. serial number 75167-1h17155 model number KGL -40-751. Smith Water Products, A. O. Smith Water Products 500 Tennessee Waltz Parkway Ashland City, TN 37015 USA, Tel: 800-527-1953. i have an old A.O Smith cast iron 6-19G natural gas water boiler &, i need to know what is the proper gas valve regulator to work well with it? Assuming it's the 20th week of 2010, but want to double check. Find the right water heater for your needs. See attached image for a screenshot. - example: Not sure what you are looking for? Why is there water in my water heater drain pan? Why do water heaters have a sacrificial anode? Servicing all of Queens, Nassau County, and Suffolk County, NY. If you are trying to determine How old is my water heater, then use this guide to determine the water heater age of your water heater. If excessive temperatures inside the combustion chamber indicate poor combustion due to a clogged LDO screen or inadequate air for combustion, the TCO will shut off gas flow to the main and pilot burners. Questions & answers or comments about how to find out the age of a heating appliance: water heater, heating boiler, heating furnace. On 2018-12-25 by (mod) - Is it better to keep the power turn on or turn it on and off to conserve electricity? Mike Marcoe, On 2022-03-02 Ser# N69-C-YY-12345 decodes provide year in the pair of digits shown as YY - found on water heaters from the 1970s. Could the lack of a TCO in the new thermocouple have caused this or is it something else? Download the general sales terms and conditions. Any ideas? Am I correct that the date of manufacture is November of 2005? Example: If the Bradford White serial number is DG****** then the water heater was constructed in July 2007. What gives? Where do I find the water heater in a mobile home? by Inspectapedia Com Moderator. Why is my water heater making strange (rumbling, gurgling, knocking or banging) noises?
Is a water softener bad for my water heater? Find the right water heater for your needs. >>. A.O. That's because the thermocouple has a more narrowly-defined job: confirming that there is a proper gas flame. Is a catch pan and drain piping required for a replacement water heater? On newer models, they use a similar key to the Bradford White water heaters that signify the month and year of the manufacture date of the Rinnai water heater. Why should a tankless water heater have an isolator/service valve kit installed? For life expectancies, visit What is the average life expectancy of the components of a house? What can I do to make my water heater last longer? Check the thermistor and its wires at the water inlet. Based on your units serial number, the manufacturing date is easy to determine: The serial number can be found on the rating plate; a stickers that looks like the one below (this one is for a BFC Cyclone): If you want to know when this BFC was produced, you can look at the serial number. Does a water heater need a shut-off valve? Heres links to a collection of more blog posts about WATER HEATERS: Is a water softener bad for my water heater? Box 245008 | Milwaukee, WI 53224 USA, Tel: 855.424.9892. Email us at info@waterheaters.com or fill out the form below! Efficient use of hot water in your space heating. Here is the key A = January, B = February, C = March, D = April, E = May, F = June, G = July, H = August, J = September, K = October, L = November, M = December. ALL Content 2020. Contact Mr. Cranor at 804-873-8534 or by Email: Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the. Hope this information helps some people out - A.O.S. Smith water heater and when to replace an AO Smith Water Heater. Could this be an original? The company began in 1874 making metal parts for baby carriages and bicycles. Can you wire a 240-volt water heater with 120 volts? How old is the house where this heater is installed? Gas valve failure. M=Factory code, C=March, and the 00= the year 2000. We purchased this water heater as new old stock in 2015 - it was the last heater of this model series in stock at the local Poughkeepsie supplier. Smith tankless water heater, go to How can I tell the age of an A.O. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. Smith remains a popular water heater brand for residential and commercial applications. Contact: A.O. a guess isAD6A067772Ser# FB00A123456 decodes to F=Factory code, B=month code using A - N for January - December (the letter I is not used) and the next two digits encode the year. Looking for the manufacture date of: MF01-0047213-248If I'm correct in this. it was made in June of 2001 is that correct? When a gas fired water heater burner won't turn OFF indeed I suspect a bad temperature sensor or thermostatic control. ser number: ME98-0084152-H43 model: ELJF. Where are gas water heaters not allowed to be installed? When owning a water heater, it is important to know the water heater age and when it is time to service or replace your water heater. These numbers are usually displaced as the first four numbers. Ser# MMYY1234567 - example: Ser# 03991234567 decodes to March 1999 this older style AO Smith water heater date code decodes as shown where MM = month and YY = 2 digit year. Keep in mind these 4 things when deciding the right time to replace your water heater: Unfortunately, water heaters dont last forever and there will come a time when your water heater age will grow old and it is time for a replacement. Note YOUR browser must be configured to accept and store Cookies for the Do Not Show Again option to work. see TIMERS for ELECTRIC WATER HEATERS inspectapedia.com/Energy/Hot_Water_Heater_Timers.phpInterestingly, Elk and Auberg found that timers don't save much energy, but that where hot water use occurs at regular times, turning the heater down (or maybe off) after the last daily use can save money. Smith states the year and week of construction within the first four numbers of the serial number. Can I leave a gas water heater in place when remodeling a garage into a family room or bedroom? Please locate your water heaters serial number and enter it in the box below. Over the years, A.O. Determining the age an A.O. Also, construction methods and materials vary in different parts of the country and it is possible that important issues related to your area may not be covered here. Are there any service tags or is there a manual with the heater (and what's the publication date of the manual?) This was yesterday. However on some AO Smith water heaters, particularly older models, you'll see a confusion of letters and numbers in the serial number that may be decoded into manufacturing date as shown below. A.O. Smith water heater installed, and the product packaging label data for that new AOS electric water heater. Can you wire a 240-volt water heater with 120 volts? Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. This can be a little tricky because different manufacturing companies use different patterns or formulas when displaying this date on the serial number. What is the difference between a regular water heater and a power vent water heater? @Erika Beattie, The serial number for this A.O. Is a washing machine drain hose required to be secured at the standpipe? @Anonymous, What is the difference between a regular water heater and a power vent water heater? qcmarketing@comcast.net. Does a water heater need a shut-off valve? If this indicator is on from first activation of the heater it may not be properly adjusted for the elevation at which the heater is installed. Trying to find the age of my water heater. How do I determine if a water heater is gas or electric? Are there any service tags or is there a manual with the heater (and what's the publication date of the manual?) My serial number is: MC00-0017367-S71, On 2021-10-20 by inspectapedia.com.moderator, @Steve Smith, Apologies for the delay. The first two digits of the serial number are related to the manufacture year, The next two digits are related to the manufacture week. and Co Douglas Auburg, PeE., CEM, ELECTRIC WATER HEATER STANDBY LOSSES: COMPARISON OF CONSERVATION STRATEGIES AND THEIR ENERGY SAVINGS, Bonneville Power Administration (un-dated), retrieved 2018/12/25, original source: aceee.org/files/proceedings/1984/data/papers/SS84_Panel5_Paper_06.pdf This style discontinued somewhere between 2008-2010, History excerpts derived from research at https://www.aosmith.com/About/History/, POWERED BY BOWMAN-WARNER INGENUITY! Ser# MYY1234567 - example Ser# B0112344567 decodes to February 2001: the first letter encodes the month using A - N for January - December (the letter I is not used) and the second two digits encode the year. How can I tell if a water heater is HUD-approved for mobile/manufactured homes? The serial number for this A.O. Now i know this isnt normal and very dangerous so we turned off the heater and turned the gas to off. What are the country and city? Trying to identify the age, but confused about the serial# chart. Smith electric water heater. We have no relationship with advertisers, products, or services discussed at this website. Trying to determine the age of my water heater. You will need to know your water heaters brand in order to decipher the construction date and age of the water heater.
Serial# S1020 F002714. Example: If the A.O. Why is my water heater making strange (rumbling, gurgling, knocking or banging) noises? This car frame was eventually supplied to the likes of Cadillac, Oldsmobile, and Ford. So 1975 water heater. Contact your plumber or AO Smith technical support at the location given above in this article. The best place to start is by looking at your water heaters serial number that is usually located near the energy guide or warning labels on the water heater. A slightly different format, but the year of manufacture is still the first two numbers after one or two letters: For an A.O. Using the Months table above on this page, I would say that the M stands for December and the 72 is for the year 1972. I don't know I would need more information to even make a guess.
Inadequate gas pressure or flow. The year of manufacture is represented by the first letter on the serial number. So to summarize the heater stayed on after we replaced the thermocouple with a universal one with no TCO. Check gas supply and if no problem the solenoid needs replacement. and Are water heaters required to be raised off the floor? Our Promax Plus water heater suddenly stopped working a few days ago so we ran to lowes and purchased a universal thermocouple. It flashes six times but no hot water. When is a water heater drain pan required? I work in the Q.C. So your serial number indicates: 917, @Rhonada Pierson, EGYou can turn off the water heater when leaving for several days or longer, and will save a little money - standby losses from modern water heaters are not very great.Conventional wisdom is that one can reduce the cost of electric hot water, if you use hot water at fairly regularly times, by having have an electrician install an automatic timer that turns the heater off for periods when it will not be in use -. Style 1b: S1318 F000046 A.O. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. Does a tankless water heater in an attic require a drain pan? Smith water heater. - example: Ser# GB92-03123456-789 decodes to Factory ID=G, Month=B or February, Year=92 or 1992. Also, see our blog posts How can I determine the age of a water heater if the serial number is missing or decoding it is impossible? My A.O. Does a tankless water heater require a pressure relief valve? By 2006 the company had purchased both Canadian GSW Incorporated and the American Water Heater Company. Smith. Does a tankless water heater in an attic require a drain pan? The first two numbers in the serial number, which may appear after one or two letters, are the year of manufacture of an A.O. Does a tankless gas water heater still work with no electricity during a power outage? Smith provides a comprehensive product line featuring many of the best known brands in the industry.
The pilot would have to be relit after the TCO has had sufficient time to cool down (sensor is below 120 degrees F). What is required clearance for access and working space in front of an electric water heater? Yes that's how I'd interpret it, as K = Dec and 05 the year. Is the minimum size water heater inlet pipe 1/2" or 3/4" according to the building code? Terms of Sale Terms of Use Privacy Policy, 214 N Fehr Way Suite C Bay Shore NY 11706, 31-70 College Point Blvd Flushing NY 11354, Visit to learn more about the NYS HEAP program, Old Post: Avoid Dangerous Backdrafting With Proper Water Heater Vent Installation, New Post: How to Keep Pipes From Freezing This Winter Season, here to learn more about the age of your water heater. What is the difference between a manufactured/mobile home water heater and a regular water heater? Note that to avoid confusion, the letter I is not used. And heres an oldie from 1978. History excerpts derived from research at. As of 2019, A.O. Bradford Water Heaters uses a key to display the year and month of the manufacture date. Smith water heater is ME98-0041362-917. 16822 SE 92nd Danna Avenue, The Villages, FL 32162, www.thevillagesbestinspector.com Comments or questions tomcgarryandmadsen@mac.com, 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. What is the minimum clearance to doors and windows for an outdoor tankless gas water heater? Current AO Smith water heater date code To find the age of other home components, go to How can I find out the age of a roof? Inlet filter clogged, water flow problem. We have 1 guide that lists all parts and accessories for our products. A.O. Code requirements cited may have been changed in a newer code edition, or may not yet be adopted in your area. He is also a contributor to InspectApedia.com in several technical areas such as plumbing and appliances (dryer vents). My serial number is 800-M-72-09519 Other interesting facts about standby losses of water heaters:Gas water heaters have higher standby losses than electric water heaters as additional heat from the water tank is lost through the exhaust flue (an automagic flue damper can reduce that loss)Larger water heater tanks, because of their larger surface area, tend to have higher standby losses.Tankless water heaters that do not maintain any reservoir of hot water have zero standby losses. Replace the thermistor if you don't see a loose or disconnected wire. Example: Below is A.O. Does a tankless gas water heater still work with no electricity during a power outage? . Ser# FB00A123456 decodes to F=Factory code, B=month code using A - N for January - December (the letter I is not used) and the next two digits encode the year. Why should a tankless water heater have an isolator/service valve kit installed? Also see this AO SMITH GAS & ELECTRIC WATER HEATER SERVICE MANUAL [PDF] at inspectapedia.com/plumbing/AO-Smith-Gas-Electric-Water-Heater-Service-Manual.pdf retrieved 2018/04/10, original source: AO Smith www.hotwater.com/lit/training/320991-000.pdf. For more detailed information, check out the full article by SensibleDigs. What is the age, please? Note: appearance of your Comment below may be delayed: if your comment contains an image, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. - example: Ser# GB92-03123456-789 decodes to Factory ID=G, Month=B or February, Year=92 or 1992.but it's not an exact match.1. No date on manuals, but identified as part numbers 184165-003 and 320388-001. Here is the key for each letter that signifies a year S = 2018, P = 2017, N = 2016, M = 2015, L = 2014, K = 2013, J = 2012, H = 2011, G = 2010, F = 2009, E = 2008, D = 2007, C = 2006, B = 2005, A = 2004, Z = 2003, Y = 2002, X = 2001, W = 2000, T = 1999, S = 1998, P = 1997, N = 1996, Here is the key for each letter that signifies a month A = January, B = February, C = March, D = April, E = May, F = June, G = July, H = August, J = September, K = October, L = November, M = December.
The first set of numerical digits represent the year. check for loose wires, electrical power supply, signs of damage to the board such as black or brown marks indicating overheating or burned.
My hot water heater has serial number K05A143732. I think more-likely the thermocouple you installed is defective or is not properly installed. Thanks! Smith Water Products Company B.V. All Rights Reserved. In some cases, they may be displayed as the third to sixth numbers. What can I do to make my water heater last longer? This A.O. A.O. I've found, for example, occasional operating problems when the end of the thermocouple that screws into the gas valve is not properly seated.
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