Light bulb socket replacement for a rea...

The chances are that your range hood light socket was fully impacted with grease from cooking. Shut the power off to the range hood or, in many applications, simply unplug the power cord. Remove the socket. Get a spray can of electrical parts cleaner and saturate the socket through the tiny pin holes you may see at back of socket. shake out all of the cleaner fluid. Somehow hang the socket up with bulb base facing up all night. Hook it up. That might solve the problem.

It worked for me very recently on a 20 year old range hood.

DON'T USE ANYTHING OTHER THAN AN OFFICIAL ELECTRICAL PARTS CLCEANER. Most hardware stores, etc., have it.