CooperTools / Weller produced the "EC" (Electronic Control series for about 25 years (~ 1977 - 2002).
The series was discontinued the fall of 2002.

During that time they had a least 3 different revisions (and many more of control boards)

The original control boards were made on a ceramic substrate (yes it can and does crack). From the documents I have - the temperature board actually just serves as a calibrated reading from the sensor.

You may wish to look at eBay auction Item number: 7626510781 by ra2112. This is board 210 .. may be right board for you (not positive). These are (very rare) NOS repair control boards from a distributor close-out in southwest Chicago
(I have an old 1002 series 1 station running with a board from him).

Last resort is to call Dino Chandler, service manager at Weller - in North Carolina and see if they have any spare parts left to repair.

Greg
"**THE-RFI-EMI-GUY**" wrote in message . ..
Do you have any tips on fixing a Weller EC-2002-A? It still regulates and heats, but the temperature display is dead. When first turned on it flashes "FFF" for a split second. I think maybe bad filter capacitor or something. Any thoughts on fixing? This is a nice unit I had just bought spare iron and tips for it. Tried another iron, and also measured proper resistance on the thermistor.

g. beat @ wrote:
One of the most frequent questions I receive is concerning the deterioration
of the white silicon or vinyl cords on the older Weller TCP series soldering
irons.

Weller does sell part number TC217, which is a black replacement cord with 3
pin plug already installed.
This is a good solution for the irons that have the Lightweight Nylon handle
with black heater insulator/plug-in (after 1977) and mate to the WTCPN and
later stations.

However, this is an expensive solution for the earlier TCP irons that had a
phenolic handle/finger heat shield, such as the WTCPK (military set with
4-pin Jones plug) or W-TCP and WTCPL stations.

For these units, you have to cut off the 3-pin plug (expensive part of the
assembly) from the replacement cord to wire the Jones plug or directly wire
to the TCP base unit.

The phenolic handle irons used a metal ground strap that also serves as the
cord's clamp and strain relief.
Removal and replacement of the old cord from this metal ground strap is
difficult (and can be dangerous without proper tools)

Some restorers have used silicon or fiberglass/silicon sleeving or silicon
tubing to build a new cord by removing the old vinyl or broken silicon
insulation.

Another option is to use a replacement silicon cord from Rapid electronics
(UK), order code 85-0590
which sells for 3.88 British pounds - considerably cheaper. This cable is
not appropriate for the lightweight nylon handle, since it is slightly
larger in outside diameter and uses the next high wire gauge 20 AWG ..
instead of the original 22 AWG used by Weller.

Rapid order code 85-0590 Silicone, heat-resistant cable for soldering
irons.


a.. Especially recommended for use with mains powered irons.
b.. Ideal for educational applications.
c.. Survives contact with a heated soldering iron tip.
d.. Convert existing PVC cabled irons to safer silicone cable.
e.. Pre-stripped and tinned.
f.. Overall length 1.5 metres.
g.. Suitable for use with all irons using 3-cored flexible cable.

g. beat


======
"g. beat " @spam protected wrote in message
. ..
I have been slowly scanning my collection of Weller Tech Sheets and posting
these on BAMA.

Some of these instruction, parts and repair sheets go back to Weller
Electric in the mid 1960s --
and are no longer available from CooperTools / Weller.
http://bama.edebris.com/manuals/weller/

w9gb




--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P