Kenmore Dryer F 22 code

[Mykl711]

Kenmore Dryer Model # 110.97081601  F 22 code which is the Thermistor,  I replaced it,  now it works fine for a couple 3 loads and then starts the F 22 code again,   then if you wait a bit it works fine and dries the clothes just fine........any thoughts ?
Does this on any cycle, timed or auto.
thanks for your help !

[bigbuck]

Check exhaust for any restriction, remove excess lint.

[Mykl711]

there is no lint  the dryer was cleaned up when I replaced the part.........it's cleaner than new inside.

[AJ]

From the tech sheet i have attached.

F:22 flashes if the outlet thermistor is open. ■ See TEST #4a, page 7.

Did you do the test on page 7?

Is F:22 flashing or not flashing?

Your dryer is the gas model, correct?

[Mykl711]

F 22 flashes, I have not run the test, I will and thank you for the help !

[Mykl711]

and yes the dryer is gas...........thanks again !