[Bill R]

My gas dryer has an ignition problem. The dryer will start every time, and ignite the burner. However, after a couple of minutes of running it will stop burning, and attempt to re-light after a minute or two. It will attempt to light every minute or so until it finally decides to re-light. (maybe 4 or 5 attempts, before it finally re-lights.)
Where should I start troubleshooting ?

[applianceman]

If it lights one time I wouldn’t think that the igniter is bad or the gas supply. the first thing I would look at is the coils on the gas valve. When it stops working does the igniter glow and then turn off? If so the coils should release gas at the same time as the igniter cuts off. Gas Dryer Repair Guide

[Bill R]

So if it is the coils, how do I Prove that it is not the valve itself ?

[applianceman]

It is likely that the coils are opening when they get hot. I am not saying it can’t be the valve but just that the coils are more likely. Also the problem is intermitting so it can be hard to confirm.