- Jun 30, 2012
- 7,306
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I mean, it got hot enough before to cause all that carbon buildup. If you look at that 'before' pic after I had wiped a bit of the blackness off, there is a completely bare solder joint and some missing copper. I believe they literally burned away. Dunno if I've ever seen that...seen solder run, but not disappear.
I think the cause was correctly identified above. Very fast power switching caused by a bad breaker, which resulted in heat at the most vulnerable part- where the elements are switched on and off. I didn't hear it clicking, but the magnetic field in the relay may have been collapsing just enough to allow the switch to partially open before powering back on. I'm sure the contacts inside look like ass.
But this is just hypothesis. I'm gonna use it with the old board until a new one gets here, then I'll dissect it for a postmortem.
And I totally missed the electrical pun. I was too concerned with current events.
(see what I did there?)
I think the cause was correctly identified above. Very fast power switching caused by a bad breaker, which resulted in heat at the most vulnerable part- where the elements are switched on and off. I didn't hear it clicking, but the magnetic field in the relay may have been collapsing just enough to allow the switch to partially open before powering back on. I'm sure the contacts inside look like ass.
But this is just hypothesis. I'm gonna use it with the old board until a new one gets here, then I'll dissect it for a postmortem.
And I totally missed the electrical pun. I was too concerned with current events.
(see what I did there?)