Hello,
MY syncrowave 300 has a problem,
the HF will work at start up and will quit working once in a while
it might take 2 minutes like 30 to get it back...

Interior of the welder isn't dirty, point gap is set at 0.008"
i looked around and found people refering to CR1 relay..
got it open and put it back on and the contacting lever are working in it..
caps seam to be in good condition, no sign of major leakage

at that point not sure where to look

Thanks!