Solis Inverter Alarm: 1027
4.9/5 ★★★★★ 450+ reviews
(Click icons to read reviews)
Solis alarm 1027: Abnormal DC input current
Solis alarm code 1027 usually means the inverter has detected abnormal DC input current from the solar panel side of the system. This means the current coming from the PV strings is outside the expected operating range.
Alarm code 1027 may appear as:
- DC-INTF.
When this happens, the inverter may stop operating or interrupt feed-in operation to protect itself from damage.
This type of fault may be linked to incorrect DC wiring, damaged cables, poor connections, PV string issues, inverter input problems or another fault affecting the DC side of the solar system.
Let e-Solar check your inverter and DC wiring
If the alarm appears once and clears after a restart, the inverter may have recovered from a temporary DC input condition.
If Solis alarm 1027 keeps returning, it is worth having the system checked. Our Perth-based solar team can inspect the inverter, test the DC input and help determine whether the issue is linked to DC wiring, damaged cabling, PV string conditions, poor connections or inverter input behaviour.
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, touch DC cabling or inspect rooftop panels yourself. High-voltage DC solar systems can remain dangerous even when the inverter is turned off. If the issue is persistent, a qualified technician may need to test DC current, inspect PV string connections and confirm the system is safe to operate.
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.
-
Fast support -
Clear advice
-
Trusted local support
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 1027, 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.