Great explanation. I have the same model, but mine will not hold an arc at low amperage. Maybe I can send it to you to make a video. Everlast could not fix it.
Evergreen and AHP a new level of cheap has been discovered 🤣. Great teardown video just amazing to see how things can be built these days yet still be put together like crap
legalsolutions07 it's only 1 year old but if I sent it back for warranty work I'd have to pay for shipping plus mailing it off would have made for a boring video.
Good point. Have u ever experienced the readout flickering for about 5 seconds when turning on the unit and turning off the unit (no cables were connected)? Any thoughts if this is normal?
legalsolutions07 mine does flicker when I shut it off. It's the input capacitors slowly discharging and the control circuit goes into some sort of weird brown out condition as the voltage drops off. It doesn't seem to hurt anything, it's just weird and gives it a cheap feel. I've never seen it at the beginning other than the display flickering once when the auto voltage change over circuit kicks in on 120v. I have an MT-125 tig welder which is a heavily modified Everlast power tig 185 and it doesn't do that on shut down, but it is in a different price bracket where weird things like flickering displays aren't acceptable. I'm going to be using the MT-125 today so I'll study it closer when I turn it off.
legalsolutions07 You're welcome, also I used the MT-125 yesterday and today and it doesn't flicker at all on shut down. The display just goes off and stays off so the flicker must be peculiar to Everlast's lower priced welders.
Well done dude, very impressive fix...that makes me wonder..can you help me with a MERSUD 2020 TIG HF AC/DC, am from Chile south america and the issue is that I do not `ve HF to start the machine, right after use the MMA to do the welding in cast iron i went back to HFAC to do the welding in aluminum TIG and there is where it didn`t `ve any current, i checked the HF terminals and used sand paper to polish it just in case something maybe wrong, I did check up continuity in the starter button attached to the tig torch; it works, it doesn`t light up the error light neither and bottom line is that I do not`ve current, not a tiny little spark in the HF, gas solenoid; it works and everything including the fan works except for this almost imperceptible detail; it does not weld!... any advice?
MARIO PROVIDEL thanks for watching, I’ve never dealt with a Mersud welder before but I have done this the following test before to see if the HF part is the only fault. Set the welder to HFAC and get everything set up for welding a scrap piece of aluminum. Then step on the foot pedal and once the argon starts flowing touch the tungsten to the aluminum briefly and if the arc starts when you pull the tungsten away the problem is definitely in the HF start somewhere if the arc doesn’t start with this test the welder isn’t going into tig mode at all. One word of warning this scratch start method will contaminate the tungsten so if you have an old/contaminated tungsten I’d try it with that. I had issues with my AHP welder not starting on aluminum when it was new because the points were out of adjustment from the factory. It would start 9 out of 10 tries but after I set the gap it starts every time. Let me know how the test goes and I’ll see what I can find out about Mersud 2020 welders.
I have the same little welder. When i started it up it went to 000. Turned on off several times and slowly showed amps but not the full amount. Only 60 on 110 and 220v. Although it should amps it was all over the place from welding cold to really hot. I pulled it apart and tested the voltage regulator as you did and it is reading only 10amps in place. What should it be reading with a proper new one in place? Thanks
Well done Sir. I'll adding a fan to my 140st. Just asking. If your looking for a new video to make..... :+). Add a potentiometer for a foot pedal would be awesome!
hello Iain, good video and very helpful, I just recently bought a powerarc 140 st, witch should go up to 140 amps max right?. mine goes up 170 and then some, question, how can that be? I really would appreciate your comment. thank you.
Maxtv doo The first thing I would check is that the potentiometer on the front panel is working. You can check that with a multimeter set to the resistance setting.
I did, it is OK. When I turn on device, then I hear small click and no fan blowing, display show 5 Amps, and I can set on another potentiometer "Down slope" value, but can't set main amperage. What you suggest next?
Hey mister!!! Nice job you've done there!!! I've seen more of your videos. You seem to me like you really know about the subject. Could you help me with a Miller Gold Star 140? Is it possible for you to have any diagrams and data sheets? I have one in bad condition an I'd like to restore it. Any help would be appreciated Thank you very much.
Hi Lain I bought a Arcsonic MMA200I. This machine is for 220V+-15%. When I take it to work and plug it into 208V it welds like a champ. When I take it home and plug it in, it will weld a short bead then the fault light comes on and it will nolonger weld. My household voltage is 244 volts. Is there some jumpers inside or a varipot that can be adjusted to make it tolerate my 244 voltage. It' s suposed to be able to handle 220 +-15% so it should be able to handle up to 253 volts. Can you help me with this welder? Thanks Jim
Hey I am pretty new to circuit boards but recently my welder, a everlast 160st went stopped working. I was. Told by someone who had the same, it is a fuse that needs to be replaced. They said it’s been to long for them to remember where that fuse was located at tho. Can you help me out in locating it? The inside of my machine is perfectly identical to yours.
Hi Lian.. liked your video. I have a DC inverter ARC 250 where the symptoms are almost the same - the OC light glows and the display working but no output. After checking could find all the final diodes (within the output board) beeping where the mosfets seems okay as no beep. It is 4 pairs mosfets and diodes on both side with the controller driven circuit inputs 24volts DC. Any suggestions?
Great video, can you provide your contact info. My everlast did something like that and also looks like no ground. And I was wandering if you can fix it
I have a century fc90 inverter wire feeder welder. Power switch lights up but no juice to board or fan and green light in front doesnt light up. Dead stick to welder. Any solutions?
I have a century inverter arc 120 as soon as you flip the switch on it flips the breaker every time it didn’t smoke or pop I looked inside an don’t see anything burnt or smell anything please if you can help I would be very appreciative. Thanks
can i ask you a question i have 200st it will shut off then back on only the display cuts off and the fan.then starts back up sometimes it wont do it at all , if i shut off you can hear the relay click off .would help me out alot thankyou.plese message me .
My Everlast TIG 200DX that always worked fine suddenly only the HF spark goes on when I turn it on. Did not blow any fuses and no smell of anything burned. Turn on the power switch and you hear a hiss and see the spark through the front grill. Anyone have a clue what this is? There is no amperage showing only minus amps. Has no power just hissing
Hello nice vedio brother, i am a learner electronic tech trying to fix one with oc led lit all the time and does not weld ,power supply ok but no output voltage , please enlighten , thanks
I have a everlast powermaster 205 welder. It was never used and when the plasma torch was connected the welder whined and smoke came out. Bad sign! We sent it to Everlast a welder that tig and stick worked. Plasma was dead. When i came back the HF was dead. When it was powered with a outside source it worked fine. We put on an interval timer and it works fine. Does anyone have an idea how the HF activation circuit on the welder works. Too many ICs and no wiring diagram. Everlast warranty is an illusion. They gave us our labor charges back and we ended up with a welder with smashed plastic bezel and broken fan and DOA. They told us they would not fix it and they voided on the two everlast welders we just bought for no legal reason. They told me they would not sell me parts or service ever. When I complained to Alex ( Sale Manager) he emailed me back and said no more emails. I think it is Miller or Lincoln Time.
Nice walkthrough of the circuitry and your troubleshooting process. 👍
Thanks!
New subscriber here, I thought that was a real help understanding both the repair and troubleshooting, very good!
You made that so easy to understand. Thank you so much...
Victor Reppeto thanks for watching!
Good job all way around!
Thanks!
That was Totally Awesome! 'Can't stop the Signal' Thank You for sharing..!
Excellent video , Lain.
Finally someone that knows what they are talking bout
Sex
Thanks in a million ...you are great my brother
Thanks for the great video, I have a Tig welder with similar problem I will search the regulator in mine, but that's already a lead on my search!
Love this kid!!!
very good demonstration brother
Nice fix and good explaination.
valveman12 thanks for watching!
SO SO HELPFUL
Thanks a lot, I love it.
Very helpful oriantation.
Umar Farooq thanks for watching!
Thank you very much
Excellent. Many thanks.
Good work
CODY BRAZIL thanks!
Great explanation. I have the same model, but mine will not hold an arc at low amperage. Maybe I can send it to you to make a video. Everlast could not fix it.
Evergreen and AHP a new level of cheap has been discovered 🤣. Great teardown video just amazing to see how things can be built these days yet still be put together like crap
Good video, thanks.
Thanks for watching!
Thanks for great information about this machine 🌷🌷🌷🌷
Very good sir
I was going to buy a Chinese Everlast 140ST, but now I might just get a 2018 Chinese Juba.
Good video. Nice diagnostic.I take it ur machine must be older than 5 years? I was wondering why u wouldn't just send it back under warranty?
legalsolutions07 it's only 1 year old but if I sent it back for warranty work I'd have to pay for shipping plus mailing it off would have made for a boring video.
Good point. Have u ever experienced the readout flickering for about 5 seconds when turning on the unit and turning off the unit (no cables were connected)? Any thoughts if this is normal?
legalsolutions07 mine does flicker when I shut it off. It's the input capacitors slowly discharging and the control circuit goes into some sort of weird brown out condition as the voltage drops off. It doesn't seem to hurt anything, it's just weird and gives it a cheap feel. I've never seen it at the beginning other than the display flickering once when the auto voltage change over circuit kicks in on 120v. I have an MT-125 tig welder which is a heavily modified Everlast power tig 185 and it doesn't do that on shut down, but it is in a different price bracket where weird things like flickering displays aren't acceptable. I'm going to be using the MT-125 today so I'll study it closer when I turn it off.
Thank you for your info.
legalsolutions07 You're welcome, also I used the MT-125 yesterday and today and it doesn't flicker at all on shut down. The display just goes off and stays off so the flicker must be peculiar to Everlast's lower priced welders.
Well done dude, very impressive fix...that makes me wonder..can you help me with a MERSUD 2020 TIG HF AC/DC, am from Chile south america and the issue is that I do not `ve HF to start the machine, right after use the MMA to do the welding in cast iron i went back to HFAC to do the welding in aluminum TIG and there is where it didn`t `ve any current, i checked the HF terminals and used sand paper to polish it just in case something maybe wrong, I did check up continuity in the starter button attached to the tig torch; it works, it doesn`t light up the error light neither and bottom line is that I do not`ve current, not a tiny little spark in the HF, gas solenoid; it works and everything including the fan works except for this almost imperceptible detail; it does not weld!... any advice?
MARIO PROVIDEL thanks for watching, I’ve never dealt with a Mersud welder before but I have done this the following test before to see if the HF part is the only fault. Set the welder to HFAC and get everything set up for welding a scrap piece of aluminum. Then step on the foot pedal and once the argon starts flowing touch the tungsten to the aluminum briefly and if the arc starts when you pull the tungsten away the problem is definitely in the HF start somewhere if the arc doesn’t start with this test the welder isn’t going into tig mode at all. One word of warning this scratch start method will contaminate the tungsten so if you have an old/contaminated tungsten I’d try it with that. I had issues with my AHP welder not starting on aluminum when it was new because the points were out of adjustment from the factory. It would start 9 out of 10 tries but after I set the gap it starts every time. Let me know how the test goes and I’ll see what I can find out about Mersud 2020 welders.
I have the same little welder. When i started it up it went to 000. Turned on off several times and slowly showed amps but not the full amount. Only 60 on 110 and 220v. Although it should amps it was all over the place from welding cold to really hot. I pulled it apart and tested the voltage regulator as you did and it is reading only 10amps in place. What should it be reading with a proper new one in place? Thanks
Well done Sir. I'll adding a fan to my 140st. Just asking. If your looking for a new video to make..... :+). Add a potentiometer for a foot pedal would be awesome!
R80U02DB fast recovery rectifier diode hard to find the parts, do you have idea, what is the replacement of this part?
Great video. Do you do welder repairs on the side? My Everlast 160 STH needs some help. I could send it to you. Thanks
Wo Der if you could tap off the low voltage ac for welding aluminum.
hello Iain, good video and very helpful, I just recently bought a powerarc 140 st, witch should go up to 140 amps max right?. mine goes up 170 and then some, question, how can that be? I really would appreciate your comment. thank you.
Nice work and explanation. What can cause if you can't set amperage more than 5 Amps ?
Maxtv doo The first thing I would check is that the potentiometer on the front panel is working. You can check that with a multimeter set to the resistance setting.
I did, it is OK. When I turn on device, then I hear small click and no fan blowing, display show 5 Amps, and I can set on another potentiometer "Down slope" value, but can't set main amperage. What you suggest next?
It is Maxtv, just answering from another account, sorry.
Hey mister!!!
Nice job you've done there!!!
I've seen more of your videos.
You seem to me like you really know about the subject.
Could you help me with a Miller Gold Star 140?
Is it possible for you to have any diagrams and data sheets?
I have one in bad condition an I'd like to restore it.
Any help would be appreciated
Thank you very much.
Hi Lain
I bought a Arcsonic MMA200I. This machine is for 220V+-15%. When I take it to work and plug it into 208V it welds like a champ. When I take it home and plug it in, it will weld a short bead then the fault light comes on and it will nolonger weld. My household voltage is 244 volts. Is there some jumpers inside or a varipot that can be adjusted to make it tolerate my 244 voltage. It' s suposed to be able to handle 220 +-15% so it should be able to handle up to 253 volts. Can you help me with this welder?
Thanks
Jim
Hey I am pretty new to circuit boards but recently my welder, a everlast 160st went stopped working. I was. Told by someone who had the same, it is a fuse that needs to be replaced. They said it’s been to long for them to remember where that fuse was located at tho. Can you help me out in locating it? The inside of my machine is perfectly identical to yours.
I didn't notice any fuses inside the 140st.
Looks like on the 160STH two fuses are located on the back upper left of the case.
nop no fuses kinda strange but when your biggest problem is over cooking yeah no wonder
Hi Lian.. liked your video. I have a DC inverter ARC 250 where the symptoms are almost the same - the OC light glows and the display working but no output. After checking could find all the final diodes (within the output board) beeping where the mosfets seems okay as no beep. It is 4 pairs mosfets and diodes on both side with the controller driven circuit inputs 24volts DC. Any suggestions?
Great video, can you provide your contact info. My everlast did something like that and also looks like no ground. And I was wandering if you can fix it
i have a everlast 160 sth and it just shut down and wont start ..it dont carry a fuse, and the display dont light up
I have a century fc90 inverter wire feeder welder. Power switch lights up but no juice to board or fan and green light in front doesnt light up. Dead stick to welder. Any solutions?
where/how would one connect an amp display on an inverter welder that doesn't have one? Also how is the potentiometer connected?
I have a century inverter arc 120 as soon as you flip the switch on it flips the breaker every time it didn’t smoke or pop I looked inside an don’t see anything burnt or smell anything please if you can help I would be very appreciative. Thanks
I’m not familiar with that welder but I would check mosfets/igbts to see if they’re blown. You can check them with a multimeter set to the diode mode.
I have century fc90 inverter welder. The power switch comes on but no power to board or fan and green light in front dosent light up. Any solutions?
LIKE
everything cool but i still do not`ve power to welding in my terminals...any advice?
can i ask you a question i have 200st it will shut off then back on only the display cuts off and the fan.then starts back up sometimes it wont do it at all , if i shut off you can hear the relay click off .would help me out alot thankyou.plese message me .
My Everlast TIG 200DX that always worked fine suddenly only the HF spark goes on when I turn it on. Did not blow any fuses and no smell of anything burned. Turn on the power switch and you hear a hiss and see the spark through the front grill. Anyone have a clue what this is? There is no amperage showing only minus amps. Has no power just hissing
My bro please help me, my 3 phase igbt welding machine well be dead, the other one is more out put power no welded tiny sheet metal, what can I do
What is that thing for desoldering???
It's the Radio Shack 45 watt desoldering iron. If you go to their website and search for desoldering tools it's the first thing that pops up.
Hello nice vedio brother, i am a learner electronic tech trying to fix one with oc led lit all the time and does not weld ,power supply ok but no output voltage , please enlighten , thanks
Hi😁 how many igbt this welder have?
لو يكون هاذا الشرح مترجم كتابيا على الشاشه ولك جزيل الشكر
I have a everlast powermaster 205 welder. It was never used and when the plasma torch was connected the welder whined and smoke came out. Bad sign! We sent it to Everlast a welder that tig and stick worked. Plasma was dead. When i came back the HF was dead. When it was powered with a outside source it worked fine. We put on an interval timer and it works fine. Does anyone have an idea how the HF activation circuit on the welder works. Too many ICs and no wiring diagram. Everlast warranty is an illusion. They gave us our labor charges back and we ended up with a welder with smashed plastic bezel and broken fan and DOA. They told us they would not fix it and they voided on the two everlast welders we just bought for no legal reason. They told me they would not sell me parts or service ever. When I complained to Alex ( Sale Manager) he emailed me back and said no more emails.
I think it is Miller or Lincoln Time.
ماهومخطط التقطيع شكرا
plz active legend
Its also a Chinesium type.