My Weller PSI100K Portasol soldering gun will not get hot at the tips, but it is producing heat at the vent holes?

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.
Dennis

Take off the tip, clean the threads, and replace tightly.

I am looking at my Weller Portasol P-1k unit right now. They use standard flints. Go to almost ANY store you can think of and they sell lighter fluid and flints (usually sold in a pack of 5). About a buck or two.

There are several websites that teach you how to use the tool including tips. you can go to weller .com the most important tip is once its plugged in and depending on the soldering gun. some are activated by a trigger and some are not, handle the tip with care because it gets extremely hot and can cause injury if one is not careful. if the tip is hot keep it away from anything that can ignite or flammable materials. its a good tool for making permanant wire splices, used in conjunction with tinned solder and flux. not recommended for doing pc board repair because of the extreme head produced. can also be used to shrink tubing around wire splices. good luck!

Hello, does your solder iron --Weller- humming? Also, is the solder tips the right tips for you Weller woldering gun? Are the tips tightened on the end of the solder gun prongs?

Well, if it is humming there is internal short in the windings inside of the gun. Don't mess with. Recyle it by taking the copper, brass, aluminum, and other metal out. Now, if it is not humming.
Make sure you have right tips, make sure that the tip is tightened in the soldering gun prongs.

The working principal of these soldering guns is that they work on low voltage and very high current. The current is regulated to keep the tip from burning into. Just enough current to heat the tipe to a certain temperature.. It can shock you but there not enough voltage with current but it will hurt. and could burn you. Be careful and lots of luck...GB...stewbison

The body contains a transformer, which steps your 120AC down to a lower voltage. The lower voltage runs THROUGH the tip, heating it up. Possibility ONE: Transformer is no good, throw it away. TWO: Not enough current is running through tip, because tip is corroded OR those mounting nuts are corroded, loose, OR somebody put new tip into nuts but neglected to bend both legs of new tip 90 degrees. Look at the barrels, you will see little holes in the sides, tip's legs go into those holes.

Make sure the tip is tightened fully, use a 5/16 wrench to snug it down.

these are not worth repairing as the main part of a soldering iron is the transformer which is what causes the tip to get so hot, so if yours is giving off smoke and excessive heat probably the transformer is starting to cook itself which means it has to be replaced. I would guess that the transformer will cost you more then a replacement soldering gun on ebay would cost. Hope This Helps Don

Heat gun tips often get bad electrical connection where the nuts tighten to the tip ends. Remove the tip, clean the ends, re-install the tip, making sure the nuts TIGHTEN onto the tip ends. Your problem is common and always caused by a poor connection at the tip ends/nuts.

butane is butane it all works