k i got the new fuse so my blinkers work...!

BUT my e-brake light keeps comin on..i checked the brake fluid and it's at its maximum...but yea like oofrost said it only comes on when it's cold..and it goes away after about ten minutes...someone wants to see it cuz i'm selling it..but i don't want him to see the light!!!!! should i take it somewhere to get it checked out?