FANUC PSM ALARM 04 DC voltage (DC link) has dropped FANUC PSM ALARM 04 DC वोल्टेज (DC लिंक) गिरा है

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FANUC PSM ALARM 04
DC voltage (DC link) has dropped

[@proedutools2794]

Just replace with the new control board (or repair the old one) if problem alarm 04 still exist, check the connector on main module (maybe the connection pin rusty/burn, replace it)

[@wingcheung6818]

Also having alarm 04,change A7800A is my first action?

[@proedutools2794]

A7800A is one of the most failure component, also LM339 and pin to main module maybe rusty or burn

[@correction8296]

Hello dear we have alarm code 5

[@shahjalal7888]

My machine is same problem