The thermometer on my garage read 11 degrees this morning, so I thought this would be as good an opportunity as any to use my block heater for the first time. I ran a cable from my porch outlet to the car and went back inside to enjoy my breakfast. I was certainly disappointed to find later that as soon as I had plugged the block heater in, it must have blown the outdoor outlet's GFCI. I reset the GFCI several times, but it still kept blowing. So I plugged it into an indoor outlet which worked just fine.

Is this a common thing with GFCIs?

Dan
85 300D