Cleaning kitchen range exhaust fan
My mother told me last weekend that when she and Dad bought their 1950's split-level house in 1970 the exhaust fan in the range hood barely worked, and now doesn't work at all, due to excessive grease build-up. Yikes! She's lived with this for 35 years without feeling compelled to do something about it. I knew the fan didn't work but didn't know why until now. It sounds like her diagnosis is correct because the light works and she says if she turns the fan on she can hear a distant humming but no action. The fan simply can't turn.
I'm more health conscious and "clean conscious" than she is and I feel compelled to do something about this. Has anyone here cleaned this kind of mess? What's involved?