Problem with Weller WES50 - ideas?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • onyx00
    New Member
    • Mar 2012
    • 4
    • US

    #1

    Problem with Weller WES50 - ideas?

    I'm about to just junk this thing and grab a Hakko FX-888, but figured I would see if anyone had an idea to fix this thing.

    It's a WES50, and recently (past 24 hours) it just started heating up regardless of what I seem to set the analog temperature control knob to. I see it to 50 (500 degrees as I understand it) and the tip starts to glow red. I tried using the calibration procedure but maybe I am doing it wrong? I hold the magnetic tip at the ESD symbol, turn the analog dial to the temperature I believe the tip is at (again, just was trying to attempt to calibrate, wasn't trying to be 100% accurate), and then remove the magnetic tip. But this fails to change anything - if I turn the dial down to it's lowest setting, the tip is still glowing red.

    Ideas? I looked at replacing the PES50 pen, but it's almost expensive as a new unit.
  • tom66
    EVs Rule
    • Apr 2011
    • 32560
    • UK

    #2
    Re: Problem with Weller WES50 - ideas?

    A few things to check:
    - Is adjustment potentiometer good?
    - Is control MOSFET good (not shorted?)
    - Is temp sensor good?

    If you're about to junk it, PM me and I might buy it off you.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
    For service manual, schematic, boardview (board view), datasheet, cad - use our search.

    Comment

    Related Topics

    Collapse

    Working...