'06 Outlander a/c button flashing again...HELP
 

Hi everyone,
06 Outlander 56,000 kM a/c button is flashing. This happened erlier in the year and it resolved it's self.
Now it's doing it again for the last few days. Weather has been fine, but we did have quite a bit of rain just before it died this last time.

Any ideas of what it could be??

I LOVE this truck and can't really afford to get into a big $$$ bill at the dealership.

ANY help is greatly appreciated.