Solis Inverter Alarm: F017
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Solis alarm F017: Low resistance between L and PE
Solis alarm code F017 usually means the inverter has detected low resistance between line and protective earth. This can point to an issue on the AC side of the system.
Alarm code F017 may appear as:
- L&PE FAULT
When this happens, the inverter may stop operating or disconnect from the grid to protect the system.
This type of fault may be linked to AC wiring issues, a ground fault on the AC side, moisture, damaged cabling, switchboard issues or another electrical fault affecting the connection between line and earth.
Let e-Solar check your inverter and AC side wiring
If the alarm appears once and clears after a restart, the inverter may have recovered from a temporary condition.
If Solis alarm F017 keeps returning, it is worth having the system checked. Our Perth-based solar team can inspect the inverter, review AC wiring and help determine whether the issue is linked to low resistance between line and earth, grounding issues, AC cabling or wider site wiring 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 inspect the AC side of the system and test for grounding or wiring faults.
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 F017, 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.