I have a problem with the fan on my Dell XPS L702X. I spilt some liquid on the keyboard a month ago - since then the fan tends to be sporadic, sometimes not working at all and sometimes 'revving' a lot at random intervals.
What would be the best way to go about repairing this? Is it likely to be a problem with the fan or a sensor/bit of electronics. This fan is difficult to replace, need to take apart most of the laptop to get to it so I would prefer not to just buy a fan and hope that changing it solves the problem.
Any help appreciated.