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Author Topic: Block Erupter Cube fuse MELTING!?  (Read 1483 times)
AndersAA
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February 08, 2014, 01:03:54 AM
 #1

Hi Guys,
I just noticed something rather troubling. The plastic part of the fuse on my Cube is literally melting... It's now pointing downward in a 45+ degree angle :/
Shouldn't the fuse blow before becoming hot enough to melt the plastic?

It's been running on high clock for a while but I haven't noticed it seeming hot to touch, but I suppose the wiring is ahelluva lot hotter than the case.

Should I replace the 30A fuse with a 40A or just a new 30A and try to get better ambient cooling(current ambient temp = 23c)? It's just a regular flat car fuse right?
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February 08, 2014, 01:26:16 AM
 #2

Hi Guys,
I just noticed something rather troubling. The plastic part of the fuse on my Cube is literally melting... It's now pointing downward in a 45+ degree angle :/
Shouldn't the fuse blow before becoming hot enough to melt the plastic?

It's been running on high clock for a while but I haven't noticed it seeming hot to touch, but I suppose the wiring is ahelluva lot hotter than the case.

Should I replace the 30A fuse with a 40A or just a new 30A and try to get better ambient cooling(current ambient temp = 23c)? It's just a regular flat car fuse right?

Replace and get better cooling.
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February 08, 2014, 05:09:24 PM
 #3

Shouldn't the fuse blow before becoming hot enough to melt the plastic?
No problem.  Just take the fuse out.  Roll up some aluminum foil into a shape which bridges the poles.  Remove all plastic bits.  Don't worry if it runs a little hot - at least it won't melt this time.
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February 08, 2014, 06:35:50 PM
 #4

The fuse wasn't in correctly, so the high resistance in the connection heats up the legs.  They're just normal automotive blade fuses, just get another one and it might have a better connection.  A box of 10 is about £2.


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AndersAA
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February 08, 2014, 06:45:30 PM
 #5

The fuse wasn't in correctly, so the high resistance in the connection heats up the legs.  They're just normal automotive blade fuses, just get another one and it might have a better connection.  A box of 10 is about £2.

Thanks Smiley Did exactly that earlier today - and you were spot on with the price Smiley
Let's hope it was indeed a bad connection and I don't have to replace them every week.
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February 08, 2014, 08:14:05 PM
 #6

Definitely not cooling properly. Get some fans up in there~! Smiley


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AndersAA
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February 08, 2014, 09:28:49 PM
 #7

Definitely not cooling properly. Get some fans up in there~! Smiley

I built a rack today set up so it sucks in 3-5c degree air from the outside. That should more than do the trick until we hit summer Smiley
And it also has a spot ready for my Ant coming in Monday Smiley
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