I have a Sears GDO model # 139.53627srt that came with a house I bought. Unfortunately there is no manual. I recently replaced the photo sensors because the GDO wouldn't close unless you held down the button on the wall control or used the remote. So I fixed that problem but now the remote doesn't work at all even after replacing the battery. I assume that the it somehow reset the codes and the remote is no longer in sync. Any help would be appreciated.

Thanks