My dryer's buzzer goes off and does not stop until you open the door. When you close the door the dryer starts again. I used a multimeter and I believe it's the push to start button that is causing the problem. I ordered part number 3395382 and got a two prong push to start part. The problem is, mine is a three prong. I called sears and they said it should be a two prong. The part number is the same for both. The only difference between the two is they have a different sub number on them. The two prong has 178 90 005 and the three is 178 90 001. Any idea where I can get a three prong or can I use the two and leave one wire off?

Thanks for your help.