Solis Inverter Alarm: 101A
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Solis alarm 101A: Abnormal grid phase angle
Solis alarm code 101A usually means the inverter has detected an abnormal grid phase angle. This means the phase relationship in the grid connection is outside what the inverter expects for safe operation.
Alarm code 101A may appear as:
- PHASE-FAULT
This type of alarm is more relevant to three-phase systems. When it appears, the inverter may stop exporting power or disconnect from the grid to protect the system.
An abnormal grid phase angle may be linked to incorrect AC wiring, three-phase supply issues, grid imbalance, site wiring problems or wider network conditions.
Let e-Solar check your inverter and phase connection
If the alarm appears once and clears by itself, it may have been caused by a temporary grid condition.
If Solis alarm 101A keeps returning, it is worth having the system checked. Our Perth solar team can inspect the inverter, review the AC wiring and help determine whether the issue is related to grid phase angle, site wiring, inverter settings, phase imbalance or wider network conditions.
Contact e-Solar and let us know:
- The exact error code on the screen or app
- When the code appears
- Whether your solar production has dropped
- Your inverter model, if you know it
Do not open the inverter, switchboard or AC wiring yourself. If the issue is persistent, a qualified technician may need to test the phase connection, inspect AC wiring and confirm whether the inverter is connected and operating safely.
Get In Touch Today
Not sure what the error code means? Send us a quick message with a photo of your inverter screen. We’ll help identify the issue and guide you towards the safest next step.
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Solis Inverter Repairs and Fault Support
We understand that every solar system is different, which is why our repair and fault-finding services cover a wide range of Solis inverter models. If your inverter is showing error code 101A, our experienced technicians can help determine whether the issue is linked to grid voltage, inverter settings, site wiring or wider network conditions.
With over 22 years supporting Perth solar systems, e-Solar has seen all kinds of inverter faults and performance issues. We’ll assess your system safely, explain what the code means, and recommend the right next step to help get your solar running properly again.
Trust e-Solar for reliable Solis inverter support backed by local experience, honest advice and long-term solar care.