TD 30/30 Help

[buddy]

I have TD 30/30 that comes up with E15 after about 5 seconds.
I noticed the flap in the back doesn't close when dryer starts. All lint screens, primary & secondary are clean and motors seems to be functioning.

Thanks

[TTLES]

BUDDY , CHECK ALL THE LIKELY SUSPECTS FOR AN AIR FLOW PROBLEM......IF ALL IS OK, THE CULPRIT MAY BE THE FAN MOTOR OF IMPELLOR.

[buddy]

Problem solved. The damper behind the blower was not opening all the way because one of the screws was obstructing it's movement.