Image
AUGUST EasyScriber Giveaway!
Industry Pros use FastCut CNC

Miller 252 Can't turn heat down

All topics related to mig welding, tig welding, spot welders, flame cutting, etc.
Post Reply
Buckmaster1967
2 Star Member
2 Star Member
Posts: 73
Joined: Wed Oct 05, 2016 8:52 am

Miller 252 Can't turn heat down

Post by Buckmaster1967 » Sat Jun 25, 2022 3:51 pm

Hey guys,
Was welding hard wire .35 wire and mixed gas with me Miller 252 Mig welder . Purchased it new couple years ago. Never had a second of trouble with it. Was welding 22ga steel at 15 heat and 88 speed. Been welding about 30 minutes and it started blowing the metal out. Like I had it setting on 24 heat for 1/2" metal. I checked the settings, changed the tip. Need a reset o the machine. Unplugged , plugged back on. Same results, Can't turn the heat now on the gun. No help in troubleshooting guild. Anyone seen this?

cuttinparts
2.5 Star Member
2.5 Star Member
Posts: 248
Joined: Tue Sep 30, 2008 3:40 pm

Re: Miller 252 Can't turn heat down

Post by cuttinparts » Mon Jun 27, 2022 10:33 am

That's very odd, never heard of that happening. Maybe its a variable resistor on the other side of the adjustment dial and has gone bad. Could open it up and have a look. If its a variable resistor type you could check with a multimeter if the resistance changes when you turn the dial.

User avatar
SegoMan DeSigns
3 Star Elite Contributing Member
3 Star Elite Contributing Member
Posts: 552
Joined: Sat Jan 06, 2018 4:45 pm

Re: Miller 252 Can't turn heat down

Post by SegoMan DeSigns » Mon Jun 27, 2022 12:20 pm

Try a system reset, my 350P gets out of whack on occasions and requires it:

Pg 30 of the book / page 34 of the pdf doc

https://www.millerwelds.com/files/owner ... 3R_MIL.pdf

cuttinparts
2.5 Star Member
2.5 Star Member
Posts: 248
Joined: Tue Sep 30, 2008 3:40 pm

Re: Miller 252 Can't turn heat down

Post by cuttinparts » Wed Jun 29, 2022 11:02 am

Great tip SegoMan, I had no idea!

Post Reply

Return to “Mig Welders, Tig Welders, Spot Welders”

Industry Pros use FastCut CNC