Lights don't turn on. On my Weller professional heavy duty soldering gun.Model #D550 120V~60Hz 2.5

SOURCE: Weller model 550PK heavy-duty soldering gun is slow to heat up

It depends on what you say is slow, I have used weller soldering guns and desoldering guns for about 30 years. They come up to top heat in about 3min. If it is taking longer than that then there is a problem with the heating unit. You can call weller tech help number, should be on iron base and they can tell you how to test the heat unit.

SOURCE: Weller 8200 100/140W replacement light bulb?

The bulb's part number is 7333. You can order a replacement bulb here for about $2.50 :http://www.e-sonic.com/aboutus/cat/S/soldering%206.pdf

Testimonial: "Thank you. Bulb voltage is actually whay I was looking for but I did not specifically ask for this.:-) Perhaps a 7333 bulb is a universal #."

SOURCE: weller soldering gun replacement light bulbs

that takes a common 6volt screw in type bulb you can buy at most radio shacks or parts stores

Rod Wallberg

• 494 Answers
• Posted on Feb 14, 2010

SOURCE: TRYING TO GET SOMEONE TO REPAIR A WELLER SOLDERING GUN

Try tightening the screws that hold the copper element, light corrsion can develop and make a resistance.This can cause the gun to over heat.

SOURCE: I have a couple of

Howdy, here is a solid vendor of weller parts and accessories who has the bulbs you are looking for.

http://www.all-spec.com/search?f=r&x=25&i=2&keywords= 8200

I hope you find this handy:)
farmerbear at FixYa.com