On marathon water heaters the age is encoded as the first four digits of the serial number.
Gsw water heater age ser number.
Key american prior to 2001 american was owned by gsw corporation and manufactured water heaters for nearly 50 different brands.
If your heater was built before 2008 the next two numbers represent the month.
The date of production manufacture or age of ge water heater s can be determined from the serial number.
Johnwood gsw moffat superflue medal.
Craftmaster and whirlpool brand water heaters.
Gsw serial numbers contain a lot of information including when the heater was manufactured.
Hydraulics encodes the date of manufacture as two digits of week and two of year in positions 1 4 of the serial number.
Energysaver golden knight knight.
Serial number styles formats found are.
Normally the first two digits of the serial number give the gsw heater s year of manufacture.
Please help me find the american water heater age model eg2 50r 9450 serial number 9919123173 product number 0920588.
Each manufacturer uses different formats and you need to de code the water heater serial number.
I m trying to determine the age of my gsw hot water heater.
Serial 50704 535391.
American was acquired by a o.
Contact information for marathon water heaters.
Smith in 2001 and currently only manufactures american american pro line premium plus u s.
Read below how to determine the age of your unit.
Gsw water heaters 599 hill street west fergus ontario canada n1m 2x1 t 1 888 479 8324 f 519 787 5500.
It is probably time to get it serviced.
Water heater serial number decoder manufacturer brand serial ex.
Mar 1 2013 lee harding said.
Gsw water heater age query.
Marathon water heater age decoding from serial number.
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Check to see if the installation date is noted on the sticker.
1 st 2 nd number year 3 rd 4 th number month.
8901xxx made in the year 1989 in the first month january.
The date of production manufacture or age of gsw water heater s can be determined from the serial number.
Serial 1 st 4 digits.
1 st 2 nd.
Serial 1 st 4 digits.
I can t tell from these numbers.
This can be determined by looking at the first four numbers ignoring any letter that may start the serial number.
If not then write down your serial number as it usually indicates the year and month of manufacture of the water heater.
Serial number styles formats found are.
Week 50 of year 1970.
