Thanks for the reply. I checked all the connection points. It wasn't working for months, and then I went by it one day and noticed it was hot! Glad I found it before something caught fire in the backyard. But you're right, it's not really intermittent. It stopped working for a while, starting working a few months later, and now doesn't work. I am wondering if there is moisture somewhere that had to dry out completely in the summer, and now that we've had a lot of rain again, it's not working.