LCD message display is dc bus fault. why comes this fault? what is remade?
SOURCE: Powerware 9120 DC Bus Fault Problem.
there is a 100uf/63v capacitor near the IRF630 fet. You need to replace this in order to fix this error. Along there is also a 2200uf/16v capacitor. It is a good idea to change the both at the same time.
SOURCE: Troubleshooting of "DC BUS Fault"
its busted by the sounds of it so unless you add more detail thats all I will give as an answer
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remedy? (cure = repair etc)
new batteries first. wash , wear, repeat. until total deathh..
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