I have a couple of years old model 1# series 4 which started to blow a 15AMP fuse. I have always used the same outlet and I have not added any other electric device in the same fuse so obviously something is failing inside the smoker. I measured heating element resistance straight from the element connectors and it was 37 ohm. Same from power cable as well. All cables were in good shape and had no indication about overheating. The fuse blows a ~1 second after turning the smoker on so I get the red light before it blows. Is this the heating element problem or something else?