So I have a Minarc Evo 150, which shorted when welding. Now it turns on, green light is lit and I have no errors, but a display shows 0 amps, and I can't adjust amps with potentiometer. On the output I have 2.2V. I have attached manual here, and using this I've checked input rectifier and PFC circuit, IGBT module and secondary diodes, all are okay. I've checked the potentiometer and it's working properly. Any ideas what to check after this?