Migatronic omega 270 boost problem

[Dem_engineering]

Hello I'm new to the forum and hope I'm listing this in the correct place. I've just bought a migatronic 270 boost of eBay. Has cost me a grand and tonight I've just turned it on and got it set up, the welder seemed fine with no problems, I had a look at some of the program's and still all seemed fine. The welder can be on 3 phase or single phase that is what the boost means, it was on 240v and I tried welding for about 20 seconds and the machine tripped the electric out, I switch back on and I could smell burning but I thought it was just coming from the steel I had welded but then smoke came out the machine and I un plugged straight away and whipped the side panel off to find one of the circuit boards had melted abit. The circuit board part number is 71613569 and on the Internet it says it's the net filter/mains filter. Does anyone have any advice for me or could help in any way please? I'm very disappointed and couldn't really afford to buy it let alone now having to repair it.

 

[mike 109444]

Surely it should be covered by a warranty or similar as it's so new?
Even if bought off ebay. Sure there are rules dealing with "traders" on ebay rather than some one making just a one off sale.
Where did you get the info that tells you the part number is a net filter/mains filter ? I looked on there web site and can't find manuals.
From your basic description it sounds like a snubber filter, designed to stop electrical noise being sent back down the cables from the welder and causing interference to radios/tv/computers ect.
If a lot of power is pulled through such a device it may get hot but if not rated high enough it could fry!
Can you post pic of item?

 

[Dem_engineering]

Hi mike, thanks very much for the reply. Migatronic offer 12 month warranty or 24 month if you fill in the warranty card with in the 6 weeks of original purchase.

Here is the link http://schweissen-sts.de/pdf/miga/an/mag/omega-an.pdf

The machine really is like brand new, I will post a picture of the board. Thanks

 

[Dem_engineering]

How do you upload photos off an iPad

 

[mike 109444]

No ideal ref pics from ipad. But on a pc you click the bx below the message box where it says "post quick reply" and "GO ADVANCED" which is the one you would use. Then type in your message in the new bigger box and to attach pic click the paper clip at the top (to the right of the white smiley face. This gives you a box to brows your pc (or ipad??) to select te pic. Then once selected, click the UPLOAD box. Now add more if needed or just close box. Note the pics can only be up to a certain size or they will get rejected.
If you then click the PREVIEW POST box at bottom you can see what the post with pic will look like. Then select SUBMIT REPLY.
It is preferred that pics are posted on to this site rather than links to photo upload sites as the accounts tend to disappeared and the post becomes pointless with out the pics.

 

[Dem_engineering]

yes did it only taken two hours

 

[mike 109444]

I assume that the bunch of wires (3 phase and 240) were connected in that corner of the pcb. It looks as though the board tracks could not cope with the power running through them or there is a fault further on on the pcb causing to much current to be drawn. was the jumpers to select 240 and 3 phase set correctly?
I would have thought your first port of call should be the supplier. It should be for them to repair/replace machine or parts under guarantee. Check out the "distance selling regulations" note to reject the item you have a short time (7 days if I recall) under the DSR. If you are in this time frame then you MUST notify the seller withing that 7 days. The returning of the item has to be done "with in a reasonable time" But the 7 days is the key one. You can email them to reject. I think ebay has a resolution section that may help but remember the 7 days mentioned above.
There is also the "fit for purpose" side of the "Sale of Goods" act (SOG).
Another option is to contact the manufacture direct but remember they did not sell you the welder.
It could be that parts have been damaged in transit. Did the box look damaged?

 

[mike 109444]

Just been reading the manual. Hope you wired the plug correctly.
Page 28 as you say is the basics of there warranty. So long as you have complied there should not be an issue. But again your first port of call is the seller.
Only realized on reading manual the machine is an inverter based machine. These from the little that crops up on this forum do have a reputation for not liking bumping around. (not unusual for electronic items!) It tends to be inverter tigs that crop up on here with faults.

 

[the snooper]

inline with the 2 green resistors to the left of the picture there is what looks like a varistor which looks to have blown I wonder if this has gone short circuit and that is the cause of the damage.

if the above is the case and the worst came to the worst I would imagine it could be repaired

 

[Dem_engineering]

Hello, thanks for your replys, my brother collected the welder so it was not damaged in transit. My brother is also an electrian and he has checked that it was all wired correctly. I did think that I might be able to get it repaired if I knew anyone. I have emailed migatronic today and they have replied saying that the warranty has ran out but they would give a 25% discount off a new pcb so would cost £229.50 including vat but they haven't said if this is a common fault or not. I'm worried that if I buy that something else could be wrong and it would do it again. Surly the machine should fitted with protection or something so it wasnt able to happen.