We have a Hampton Bay "Brookedale" model ceiling fan. It is about a year old and was working fine until a few days ago. We came home and it was on (we left the house and it was turned off), with the fan running and the light on, but not it's usual brightness, very dim. I've checked the wiring to the fan from the outlet box and it appears OK and the connection from the fan to the light fixture and this seems to be fine also. The fan works fine, it only appears the light fixture is impacted.

Any suggestions?