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Posted: 2021-06-2909:03 AM. Last Modified: 2024-03-1201:24 AM
Smart Ups SU-3000INET report half load only
Hi
My ups is reporting half load only.
If I connect a 300w bulb is only reporting 150w. With 750watt load only one led lit. with 600w no led activity on the bar graph display.
I did a visual inspection on the motherboard and the only bad thing it was two resistors R38 and R43, i did change them but the problem remains...Where should I check?any ideas? Where is located the load apparent power?