Clarke 100e mk2 went pop

[Pigthief]

Welding yesterday, welder working great. Then swapped gas and it went pop, it switch the main fuse in the garage, I reset it and now the welder gets power but it won't feed wire or weld. What have I done? Is it properly dead?

 

[gaz1]

check your pc board has power at the secondary transformer either the board has some damage or the stepdown to your motor has been damaged

also check your magnetic contacts as these feed your wire motor and without feeding wire you wont weld anything

 

[Pigthief]

Thanks, first off. Second how and how. My electrical knowledge is wiring a plug and soldering.

 

[gaz1]

https://www.mig-welding.co.uk/forum/threads/clarke-100e-problems-and-hello.29566/

https://www.mig-welding.co.uk/forum/threads/clarke-100e-wire-feed-problem.30536/

 

[Pigthief]

I'll have a read ta

 

[angellonewolf]

on my clark there is a fuse on the board worth cheaking

 

[Pigthief]

So think I found the problem

 

[Pigthief]

44701 -
Isolation Transformer, EI 30 x 18, 2.8 VA, 18V, 156 mA, 1 x 230V, PCB MOUNTED 44xxx Series

so looking at this to replace

 

[Pigthief]

or this
44161 -
Isolation Transformer, EI 30 x 18, 2.3 VA, 18V, 128 mA, 1 x 230V, PCB MOUNTED 44xxx Series

would either work?

 

[Seadog]

Go for the first one if in doubt. Better to have an up-rated version.

 

[Pigthief]

I have ordered the first one hoping it comes quick and fixes the problem. Is there anything else I should check whilst out of order?

 

[gaz1]

unless you have a multi meter to use and test then its a no and take a risk with it

something has had to cause that to short at that point

 

[Pigthief]

I have a multi meter, and the transformer is now off the pcb and its black across the primary

 

[Pigthief]

Well all fixed, the better transformer fixed the problem. Thx peeps