MM 251 - clicking sound

[wrench3047]

ours at work does it to. called Miller and asked about it and they said it was normal. It's about over 2yrs old I've been there over a year and weve never had a problem with it.

[Mike W]

Is that perhaps something like a "fan on demand" type of thing. Maybe it is telling you to get back to work.

[widetrackman]

I dunno the machines inners but it sounds sporadic 5 10 15 minute intervals not actually timed, faulty MIG gun trigger switch maybe? are you holding the gun when it does it?

Its never done it when holding the gun or moving the machine, just when I am doing other things in the shop.

[widetrackman]

I also noticed that on mine every once in a while maybe every 20-30 min. It sounds like the contactor going on and off(like when you press the gun trigger)

Yea, thats what mines doing.What should we do ?

[tackit]

I dunno the machines inners but it sounds sporadic 5 10 15 minute intervals not actually timed, faulty MIG gun trigger switch maybe? are you holding the gun when it does it?

[Jim]

I also noticed that on mine every once in a while maybe every 20-30 min. It sounds like the contactor going on and off(like when you press the gun trigger)

[widetrackman]

when my 251 is idle'g sometimes 5 or 10 or even 15 minutes it goes click click. Sounds like the selenoid clicking on and off ? I put a clamp on meter w/ hold feature and checked both legs (indepently) and found no voltage problems. You guys got any ideas / suggestions. It's 80 mi oneway to the warranty station, so do I need to be concerned as its not effecting the welding process ( so I think).