This is a lousy design. Our cables chaffed through very quickly. PC will sell you new cables, the spring situation needs to be addressed also, not enough spring and too much black spray paint. We made some modifications, things work better than original. I would take a hard look at building a better system, this is not complicated engineering, and if this is what we get from American made..... please someone introduce more Asian influence. Of course if your screen door latch hasn't broke yet it will, door latches and 120v outlets will come soon. Make a list and save on shipping.
Doug