Greetings, I recently purchased a MM350p from an online auction. Brought it home and it needed all new cords. Not an issue, I worked with the local Airgas and now All connected up with new. Today I decided it was time to fire up and I re-linked for 1-phase 240vac, plugged it in, hit the switch and.... I am getting "help7" and "help9" codes. Input power checked and re-checked.. is perfect. Any suggestions?
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Millermatic 350p Help 7
- Thread starter UP-parts
- Start date
- Replies 3
- Views 6,521
Ries
Diamond
- Joined
- Mar 15, 2004
- Location
- Edison Washington USA
https://www.millerwelds.com/files/owners-manuals/O1327S_MIL.pdf
help 7 is incorrect input voltage.
but help 9 is usually bad pulse board, or connections to it.
first, obviously doublecheck wiring connectors, jumper setting, and input voltage.
You are sure its not a 460/575 volt only model, right?
If it really is the pulse board, its gonna cost you.
help 7 is incorrect input voltage.
but help 9 is usually bad pulse board, or connections to it.
first, obviously doublecheck wiring connectors, jumper setting, and input voltage.
You are sure its not a 460/575 volt only model, right?
If it really is the pulse board, its gonna cost you.
gary-sc
Aluminum
- Joined
- Aug 20, 2010
- Location
- Santa Cruz, CA USA
I had a help 9 on mine, it was a bad board as Ries says. Fortunitly Miller covered it under warranty. I would second the idea to double check your jumpers.
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