I have installed 8 of these in my home, 6 of which work great. There are 2 that the LED will not completely turn off and do not come on when the room is occupied or manually. They will eventually come on if play with the dimmer and manual button. Every switch is wired to the same model LED which shows as compatible on the Lutron website. Sea Gull 14520S-15. I have switched one of the non-working dimmers out with an unused new one with the same result. Any ideas?