Gas dryer has to run 3 or more times to dry

Dryer Repair
1

I replaced the THRMST Fix #3387134 but it did not help at all.

Dryer flame comes on in about 1 min. Stayes on for 30 sec to 90 sec thin turns off for 2 to 3 min. This sequance varies.

Clothes have to be dried 2 or 3 times

2

Dryer Not Hot Enough