Heat indicates resistance. Try removing the fuse and giving the holder a good scrubbing with a small wire brush like a rifle cleaning brush. It's not uncommon for a fuse holder to get a layer of oxidation on the contact surfaces.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!