Anguz
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- 1,629
- Location
- Northamptonshire
my dc tig set played up last week.
stared by welding a few seconds, then going back to hf and repeating this sequence
took the top off, and blew it out with the airline.... wasnt much in the way of muck in there.. its only used hobbywork
it now isnt flicking between hf, and weld, it starts with hf, then goes full chat, no matter where the power setting pot is- also does the same if i switch to the foot pedal (without one plugged in- normally f i do this, hf will run but no welding arc)
have had the pcbs out, and checked the potentimeters, and there all ok
have replaced the stick/tig and the footswitch selector switches
if i switch to stick welding, it is again full chat
where do i look next?- have been looking for a while for a manual, and i dont think they exist... its a dutch hobart, so the US site is no good
stared by welding a few seconds, then going back to hf and repeating this sequence
took the top off, and blew it out with the airline.... wasnt much in the way of muck in there.. its only used hobbywork
it now isnt flicking between hf, and weld, it starts with hf, then goes full chat, no matter where the power setting pot is- also does the same if i switch to the foot pedal (without one plugged in- normally f i do this, hf will run but no welding arc)
have had the pcbs out, and checked the potentimeters, and there all ok
have replaced the stick/tig and the footswitch selector switches
if i switch to stick welding, it is again full chat
where do i look next?- have been looking for a while for a manual, and i dont think they exist... its a dutch hobart, so the US site is no good