A.O. Smith BTL199 200 Gas WH won't light up

[skyway420]

The unit was installed about 4 years ago and a couple years ago it had issue where it wouldn't stay lit for more then a few seconds. Currently, it doesn't even make rapid clicks of electronic ignition with power on and was wondering if it could be pilot assembly?

 

[Dj2]

You might still be under warranty, call customer service, the number should be in your manual.