Hardplates
Stainless
- Joined
- May 8, 2019
- Location
- What once was a free country
I was given a 10 hp DPC that is broken and am attempting to repair it. So far I have replaced a bad IGBT and a hex buffer that had one of the outputs shorted to ground. I am getting a flashing red LED and the contactor is not closing. It appears to be trying to make the third leg at the correct phase angle but well under voltage. The previous owner replaced the AC caps once when it stopped working. Years later it died again and he tried replacing the caps again but it didn't work that time so he bought a new model that they support. Going by the number one rule of troubleshooting (never trust the guy that came before you) I am beginning to question the basics like all the wires being connected it the correct location. I flag labeled everything but who knows if it was correct when I got it since it wasn't working. There seems to be very little about repairing them and I would love to start a thread to help people troubleshoot these since the manufacturer chooses to no longer support them. I have some very basic electronics knowledge and an o-scope and the means to do component and board level repairs. I can't imagine I am the first person to attempt to understand and repair one of these and imagine someone far smarter than I has and could be of some help.
Paul
Paul