2nd footpedal not working...

[Ray C]

Customer Support / All,

Hi. I have a PowerPro 205, purchased earlier this year and suddenly, the foot pedal stopped working properly for TIG welding. I was in the middle of a job. Stopped the arc, repositioned the piece, pressed pedal to resume welding and it was broken. -Simple as that. When depressed, the the spark is jumpy and erratic and has no power. The unit works fine when the torch switch is used in either 2T or 4T mode. With 2T mode with the pedal, it's broken. I called and a new foot pedal was sent under warranty. It arrived today and it's worse than the original one. When depressed, nothing happens at all -doesn't even trigger the pre-flow. Switch back to the old one and it triggers the pre-flow but gives the erratic arc. Still works properly from the torch switch.

Don't want to take anything apart possibly voiding the warranty. Where do we go from here?

Thanks

Ray

[performance]

Not going to void the warranty if we tell you to do it. But you need to check the pedal and make sure the switch is functioning. Then if you call in we can help you diagnose it. It could be a loose cog on a shaft or a slipping belt.

[Ray C]

OK, I checked the original pedal and the switch is working ok. The rheostat measures zero ohms in all positions (with cable unplugged from unit) and I checked against the outer and center terminals. I have the replacement (which also doesn't work with a different symptom). I'll check the resistance on the replacement to see if there's any difference.

[Ray C]

Back in business. The rocker switch lever was hung-up on the replacement. Seems the rheostat is bad on the original. One of e'm works so it's all good.