The hi temp t-stat was found to be not working, This is the one on the burner vertical duct up near the top but is in the lower position. A different part is being used as a temp substitute. With the drum out and the unit turned to timed dry it will fire up and run the burner for about 10 seconds before shutting off. after about 90 to 120 seconds it will again fire for about 10 seconds. I have checked every other item on this unit and cannot find any problem. I am very suspicious about the gas valve but it fires up properly but only for about 10 seconds. This gas valve is unusual in the configuration of the coils. Anyone else with any experience on this type of Amana gas dryer. It is a low priced unit but in like new condition. The parts illustrations I have found so far do not look like the typical coils and valve on a Maytag or Whirlpool ?