See that was an easy guess, in fact the T17e has a failure rate of 30%, the majority of that 30 % is the exact problem you have, so for everyone else reading this (probably in the near future) whenever you get a board showing 0 asic or temp-sensor issues, know that most of the time it's a chip/heatsink issue.

The good thing is that the chip you going to remove will have pre-tin solder on it, so you only need to heat it and you don't need any tin-tool for that, you can refer to this videoto get a better idea on how to replace the chip,