How can i repair the dryer when it wont heat. It heats only in the beggining then it does heat anymore more after 10 minutes, how can I fix it?

I was dealing with this exact issue for the past few days! I have a model # MDG5500AWQ. Starting to hang dry clothes and all. I read through these blogs and found that it was a GAS VALVE SOLENOID COIL that I needed to be REPLACED. I was told by a Magtag dealer that when the gas flame cut out like this the issue was 99% of the time the gas valve solenoid coil kit. I was even trying to call around to try and get a tech out today but none were available and they wanted $65.00 just to come out and look at it. So I went to the Magtag website and found a dealer in my area and asked them for the part. If you open the front part of the dryer and push the button to make the dryer turn on without the door closing it in a few seconds the flame starts on and about 1 minute later the flame totally cuts out. My husband just got through changing out these coils which were smaller than the picture, only $35.00 with tax front the dealer, and located in the very front of the dryer,. towards the bottom, when you open the dryer front. He replaced them and I'm drying a load of laundry right now, thank God!