Question about Miller Welding Equipment

4 Answers

MILLER WELDER AC CURRENT TRIPS UNDER LOAD

I have a miller big blue 300p, when i use the ac outlets it gives out current but after 1 minute it trips out leaving the outlets with no current. I turn off the machine then start it again and it does the same thing, I get an HL.P code 23 it says one of the scr output rectifiers has failed. I ordered 2 rectifiers from miller i installed them and tested them in all the different spots my removing two old ones and replacing it with the new ones but i still keep having the same problem as i stated before. my question is should i buy the remaining rectifiers and replace all of them. don't know what else to do. will appreciate any ideas .

Posted by on

4 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 360 Answers

Rectification is used to change AC to DC.... DC is used for welding (these would be large rectifiers) and to excite the rotor in the alternator (much smaller and probably part of the control circuit). If when you weld in AC the same error occurs, check the voltage regulation control circuit.

Posted on Mar 05, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 19,396 Answers

If your welder is shorting inside and giving electroshock , it may be covered by Miller as factory defect, providing that you have not disassembled the unit by yourself.

Give them a call at
1-800-4-A-MILLER

Posted on Mar 05, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 165 Answers

Check out for fuse getting blown out or at any loose connection at the power supplying unit.

Posted on Mar 05, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 8,619 Answers

Hi

Try replacing all the output rectifiers and also check the transformer windings.

Posted on Mar 05, 2009

  • Rylee Smith
    Rylee Smith Mar 05, 2009

    Also check for the Self-resetting Protection Circuit, it needs to be checked.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Miller 280nt trailblazer has AC power but no weld output? already checked the f1 and f2 fuse


Sounds like an internal problem. You will probably have to take the casing of the welder off and examine all your wire sets. It could be something simple as a connection issue. The transformer may have blown as well.

Jun 03, 2014 | Miller Welding Equipment

1 Answer

What are some good things to look for when purchasing an used thunderbolt ac/dc cc stick welder


cc 230 isnt a bad welder. If it will be used for industrial purposes than i would go with a 440.

May 19, 2014 | Miller Welding Equipment

1 Answer

I need parts for miller thunderbolt XML stick welder#903642 were can I find them?


try you local welding/metal fabrication store. not sure where your located but pretty sure Oxarc will have what you need

Apr 12, 2013 | Miller Welding Equipment

1 Answer

How make tig welder to mig welder


switch from tig welding to mig by switching your current from AC to DC for mig. change from your tig gun to your mig gun. turn water flow off. proper ground and weld away.

Mar 29, 2013 | Miller Welding Equipment

1 Answer

Serial number miller AEAD 200LE JF 885778


Check this out:

http://www.ebay.com/itm/MILLER-AEAD-200LE-CONSTANT-CURRENT-AC-DC-ARC-WELDING-GENERATOR-GAS-POWERED-/310368057796?pt=BI_Welders&hash=item484360b9c4

Jan 13, 2012 | Miller Welding Equipment

1 Answer

What size circuit breakers should I use for my 225 welder?


Look on the specifications plate...there will be an input voltage and/or current/wattage rating. If you need to convert watts to amperage then you would use the following formula:
p=e x i or watts divided by volts will give you the current(amps). I think that unit is 240vac(mine is) and I use a 40A 240vac breaker and have no problems(thats 9600 watts)..you will want to choose a breaker as close to the max rating as possible...don't go too high or the breaker won't trip if something goes wrong

Dec 16, 2010 | Lincoln Electric K1170 AC-225 Stick Welder

1 Answer

I HAVE AN OLDER MILLER BIG 40 RUNS BUT NO WELD OR AC POWER


check the ground ,make sure is tight.look around the machine and see if theirs a switch or a nob to turn from mig to arcweld...

Oct 25, 2009 | Miller Welding Equipment

6 Answers

Miller Big 40 will not weld and has no current at the A/C outlet


open inspection door,which also the fine tuner knob is ,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.

Jan 23, 2009 | Welding Equipment

1 Answer

No power to weld or use A/c power outlets


You don't say what model welder you have, some Miller welders have 3 slip rings and brushes some have just 2. In either case the next step is to use an ohm meter to check the resistance of the rotor and brush assembly. If this is a 2 slip ring model, take one of the wires off of one of the brushes then measure the resistance between the 2 brush terminals - it should be something between 10 and 100 ohms. If you get an open circuit measure the resistance from one slip ring to the other right at the slip rings - if you now get something other than an open you've got bad brushes (about $10 each to replace),

The 3 slip ring models are similar but have 2 rotor windings - take off the wire from the middle brush and measure from it to each of the ends.

If your rotor and brushes checked out OK you should next check the fuse in the exciter circuit, this will be on the block where the other end of the brush wires go.

If the fuse was good you need to do an excitation test. This is a bit dangerous so be careful. Look at the schematic pasted inside the case and figure out which brush is the positive (+) one. The wires are numbered and so is the schematic so this isn't as hard as it might seem.
Disconnect the wires from both brushes (all 4 wires in the 3 slip ring model) and tape them off so you won't get shocked. Get a 9V battery or make up jumpers that will let you connect the welder battery to the brushes. Start the welder and connect your temporary power supply, measure the AC at the outlets (it should be around 60VAC with a 9V battery) and the DC voltage at the weld terminals (should be above 10V), lastly measure the voltage at the wires you disconnected from the brushes (should be around 70V DC). Disconnect the temporary power supply and shut down the welder.
If you didn't get AC at the outlets and DC at the weld terminals above, something is wrong with the stator in your welder. If you didn't measure any DC on the wires that go to the brushes (most likely thing to happen), you've got something wrong in the exciter circuit. Check the rectifier, the capacitor, the exciter winding in the stator, and lastly the current control board. Older welders will also have the fine current control rheostat in this circuit (look for burned windings on it).

That's about all of the general advice I can give you without knowing more about which welder you have.

Carl

Oct 23, 2008 | Miller Welding Equipment

2 Answers

Miller axcess 40v wire feeder


give me a day or so and i will have the solution for you

Sep 11, 2008 | Welding Equipment

Not finding what you are looking for?
Welding Equipment Logo

Related Topics:

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top Miller Welding Equipment Experts

EugenesDIYDen
EugenesDIYDen

Level 3 Expert

479 Answers

John Trevino

Level 3 Expert

1378 Answers

yadayada
yadayada

Level 3 Expert

60960 Answers

Are you a Miller Welding Equipment Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...