APsystems YC500-A Installation/User Manual 16
. . .TROUBLESHOOT A NON-OPERATING APSYSTEMS MICROINVERTER
3. Check the AC branch circuit interconnection between all the
microinverters. In rare cases, the wire in the AC plug may
have worked loose. This will need to be reviewed by a qualied
electrician. Verify that each inverter is energized by the utility
grid as described in the previous step.
4. Make sure that all AC breakers are functioning properly and
are closed.
5. Check the DC connections between the microinverter and the
PV module.
6. Verify that the PV module DC voltage is within the allowable
range shown in the Section 8 Technical Data of this manual.
7. If the problem persists, please call APsystems Customer
Support at 844-666-7035.
WARNING: Do not attempt to repair the APsystems microinverter.
If troubleshooting methods fail, please contact APsystems Technical
Services at 844-666-7034 for a Return Merchandise Authorization
(RMA).
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