iStore Inverter Alarm 2001
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iStore error 2001: High string input voltage
iStore alarm 2001 usually means the PV string input voltage is too high. This can happen when too many solar panels are connected in series, or when the solar array configuration does not match the inverter’s voltage limits.
The alarm may relate to PV1 or PV2 input voltage, depending on which input has exceeded the safe operating range.
This is not a normal operating message and should be taken seriously. High string input voltage can place stress on the inverter and may cause damage if the system is not assessed properly.
Contact e-Solar before resetting the system
If iStore alarm 2001 appears, do not keep trying to reset the inverter without understanding why the fault is occurring.
Our Perth-based solar team can inspect the inverter, review the PV string configuration and help determine whether the issue is linked to panel configuration, open-circuit voltage, inverter input limits, DC cabling or another system fault.
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, disconnect 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 the PV string voltage, review the solar array configuration and confirm the system is safe to operate.
If you’re unsure, don’t risk it. Contact e-Solar for safe, local support.
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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iStore 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 iStore inverter models. If your inverter is showing error code 2001, 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 iStore inverter support backed by local experience, honest advice and long-term solar care.