我这有一台300DX的,开机电压表显示HE.L电流表显示P-2,全部按键没反应!有高手帮忙解决吗?谢谢

• Help 2 Display
Indicates an open in the thermal protection
circuitry located on the left side of the unit.
Could also be wired wrong for single phase
with switch S1 open on black or white lead.
热敏开关故障

显示左侧热保护开关跳开,对了你是哪公司的啊?我们是南京联翰,代理米勒焊机的

你好!我在杭州维修焊机的!那台焊机已经修好了!是有一块324的铜泊断了!另外我用继电器断高压把它改了!谢谢你们的支持!