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Soldering iron smoking? Answered

Hi Guys,

I just bought a new soldering iron for the first time. When i plugged it into the wall outlet it started smoking (not alot) well that scared the living crap out of me, so I turned it off. So can any of you guys tell me that should I just dump the iron or is it normal. Please guys help (and there was a bit of smoke near the handle too). Oh and another interesting thing is that after 10 seconds of plugging it in it started melting solder ( its a 35 or 30 watt iron )

Thanks in advance.
-Prickly Potato



Best Answer 3 years ago

Depends on, where it is smoking. On any part that is expected to get hot (the tip [of course], the heating element) that is pretty normal, it's just burning off any coating and residues that is in those places - that is pretty normal and should stop in a few minutes. If anything that should stay cool is smoking (handle, cables, the controller station itself, if it has one), well that's a case for warranty.

10 seconds to start melting solder is okay.

Plug it in, let it sit for 10 minutes under close observation (and over a non-burnable surface) and try to tin the tip.

If you still can touch the handle and the only hot part is the tip and around - congratulations, take good care of your new soldering iron.

If you can't touch the handle, the controller gets more than lukewarm or anything still smokes (or burns...) send it back.


3 years ago

Even more important, is to turn-off that iron whenever you leave the room.

I know some one who rigged the iron power outlet to the room lights for insurance purposes.

A new soldring iron can produce some smoke due to the oil film on it that is protecting the metal.
Totally normal thing but it should not give smoke like a fire, after about 10 minutes the smoking should stop.
After that you only get smoke while using flux cored solder.


3 years ago

That is normal (if it is on the tip or shaft). Just a bit of flux residue or oil and grease (maybe from you're fingers) is burning off.

Yep, leave it plugged in, but watch it closely.

i recently got one too and it did the same thing i think it is because it is burning off the impurities just leave it on for a few minutes and it will stop smoking