Is anyone familiar with determing the age of a John Wood water heater Model JW540SNA ser# 9701254027. All I could determine from their website is that it is out of warranty.
Thanks Wayne. Is that the standard formula for john wood water heaters- first 4 digits of ser #?
Yes, sometimes it is switched though , use AO Smith hot water heater code
What is the AO Smith code?
They make the above hot water heater
OK, but you referred to a code for dates. What is that date code for AO Smith that you referred to?
Give me your email and i will send the chart it says it is to big to send through here