I have had a harman tl300 for three seasons now. Once I bought it brand new my issue was the damper rod would fall past damper and would not shut tight. I have replaced damper rod three times. The damper 3 times. Where the damper ends meet the right side of clip is bent. The left side the clip constantly does not stay up right. This has been three years. Any one out there have the same problem. Helpppp