Question about Weller HEW100P - Heater Assembly for W100P Soldering Iron

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Cold iron My new Weller 100P soldering iron stopped working after only a few days. I changed the tip, cleanedthe tip, but still on heat. Any suggestions?

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  • Master
  • 511 Answers

If under warranty - return it

Posted on Nov 05, 2014

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Posted on Jan 02, 2017

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MalKontent68
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SOURCE: my Weller PSI100K Portasol soldering gun will not

It is supposed to produce heat there, it's the place where catalytic combustion takes place. If the tip doesn't heat up enough, it means that either the tip is not screwed properly into the housing, or there's not enough gas pressure. The catalytic mesh should be orange in color when heated properly.
Too low gas pressure may be a result of many things, like a malfunctioning valve (regulator and/or on/off),or clogging of the ceramic pressure reductor due to poor quality gas used, with high heavy fraction content.

Posted on Jul 15, 2010

  • 33 Answers

SOURCE: I have a Weller 1002B soldering station. Haven't

Hi, I'm not sure the tip is defective. Check that the tip is screwed in tight. If it is not good and tight the tip will not get a good heat transfer from the solder wand. Hope this helps. If the wand will heat then the tip should.

Posted on Aug 30, 2010

  • 1267 Answers

SOURCE: Hi, I have a

See: http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Daps&field-keywords=weller+WM17D+soldering+tips&x=15&y=19

Also Radio shack may have the tip at a larger price, but you don't have to pay shipping

Posted on Dec 10, 2010

  • 185 Answers

SOURCE: The tip of my weller

This happens quite frequently. On the tip there are two nuts that hold the tip to the gun. Tighten them a bit. The tip is made of copper and as this heats, it causes the connection where the nuts are to become a higher resistance and thus lower heat. When you tighten them, it "cuts" through the copper oxidation (caused by the heat) and lowers the resistance, hence more heat.

Posted on Jan 12, 2011

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If this is the dual trigger Weller gun and your tips are held in place by either set screws or by locking nuts, Just loosen both of the parts that are holding the tip to the gun and then retighten them back up. Soldering iron tips that appear to be tight might not be and this will insure that the tip is indeed tight and also cleans up the connection of the tip to the soldering iron. Oxidation from heating and cooling will cause a tip to not get very hot. Loosen the tip holder and then retighten it. Hope this gets you going again.
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This happens quite frequently. On the tip there are two nuts that hold the tip to the gun. Tighten them a bit. The tip is made of copper and as this heats, it causes the connection where the nuts are to become a higher resistance and thus lower heat. When you tighten them, it "cuts" through the copper oxidation (caused by the heat) and lowers the resistance, hence more heat.

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Hi, I'm not sure the tip is defective. Check that the tip is screwed in tight. If it is not good and tight the tip will not get a good heat transfer from the solder wand. Hope this helps. If the wand will heat then the tip should.

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Bits: It's useful to have a small selection of manufacturer's bits (soldering iron tips) available with different diameters or shapes, which can be changed depending on the type of work in hand. You'll probably find that you become accustomed to, and work best with, a particular shape of tip. Often, tips are iron-coated to preserve their life, or they may be bright-plated instead. Copper tips are seldom seen these days.

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