When the dryer starts up the glow bar glows and the gas comes on for about one minute then off for one minute. I have changed the coils and glow bar thinking this would fix the problem. It did not. I checked all of the hoses for restrictions, none found. Also took the lint box inside apart and cleaned. Not sure what else to do wife is getting upset and wants to buy new ones please help

Ihave whirlpool gas dryer stoped drying clothes due to cloged vents dryer burner goes on then shut off after a minute so i replaced high limate themosate both of them could it be the cycling themosate