Hello. My washer dryer generally works fine, but wasn't drying quite as well as usual. As I now have two cats, and their hair gets everywhere, I thought I ought to check the fan for lint. It wasn't too bad, and I bought a new seal, but it's proving really difficult to get the fan back on to the condenser as when I press down and swivel it, part keeps springing up a bit. Are there any hints to replacing this part? Or alternatives to the seal?