Inspector screw up?

[Idan Narotzki]

Hello,

I just found out that I need to replace my water heater. 2 months after Inspection. 

In the inspection report, the inspector wrote that its condition is "Satisfactory". 

Unofficially, when I emailed the inspector to ask specifically about the water heater, he said it looks pretty new and I don't have any reason to worry. Now, I was told by my PM that I should install a new water heater since the old one has issues. In addition, they say that it looks over 20 years old. I saw also a picture with 1998 tag. 

Should/could I force the inspector to take responsibility? Can I do anything with it? 

Thank you very much!