Oh, and Humbly Grateful, by the way...

Thanks for your response, Robert! I took it all apart, cleaned everything including a light sanding of the flame sensor, and put it all back together. When I fired it up I got the same result, at first. After about 30 minutes of normal operation, all four burners were blazing away properly. The next...

I have a Goodman/Janitrol GPD100-4. After the heating element gets hot and the gas ignites, I get inconsistent firing across the four burners. The one on the far right with the heating element burns correctly, but the other three ignite and turn off repeatedly. This lasts for about 4-5 seconds and t...