Every effort is undertaken to offer you correct and concise information to assist you in determining the age or manufacture date of HVAC equipment. Anytime anyone is dealing with numbers and letters in determining data, mistakes and misinterpretation are bound to happen. For this reason if you find during your research that we may have erred please contact us. In addition perhaps you have come across a brand, model or serial number format that we have not addressed. Email us information or pictures of data/nomenclature plates of the unit and we will attempt to assist you in your determinations. Email
Modine – Present day
Serial Number format: 30012021190
(This serial number was transcribed from an actual unit during a home inspection).
Using the first thru fourth digits 30012021190 you will find the week and year of manufacture. The first set of digits is the week and second set of digits are the year. This unit was manufactured in the 30th week of 2001.
Year of manufacture: 30012021190
Week of manufacture: 30012021190
Note: Weeks 1 thru 9 were signified by single digit numbers. For example 1012021190 would indicate that the unit was manufactured in the 1st week of 2001. Therefore only the first three digits would be used.