May 17, 2012 #21 O OBIALOR Member level 5 Joined Nov 12, 2005 Messages 84 Helped 8 Reputation 16 Reaction score 8 Trophy points 1,288 Location Nigeria Activity points 1,720 the problem with your ups is the feedback,if the feedback is ok the voltage will be 220v check the opto copler and 270k or less resistor that will bring it back to normal,
the problem with your ups is the feedback,if the feedback is ok the voltage will be 220v check the opto copler and 270k or less resistor that will bring it back to normal,