My 97 camry a/c light starts blinking when it rains?

when ever you run your a/c it aculates condensation your car is supposed to have a drain for this usually located just forward of the penger floor board on the outside,it may be plugged and not draining the water build up. if you have ever smelled antifreeze and you can smell this when your window fogs up then you have another problem that is a separate unit but located in the same area.. and yes that could be pricey to repair, check with local reputable parts stores Napa,checker, oriley's, for information and maybe a suggestion for a good mechanic.