Huawei FusionSolar Error Code 2063 – Meaning, Causes &... | solardiagnostics.org

Technical Background:

The alarm ID 2063 indicates a failure in the insulation resistance (RISO) measurement, which is critical for ensuring the safety of the solar power system. The inverter continuously monitors the insulation levels between the DC circuits and the ground. If the measured insulation resistance falls below acceptable limits, the inverter triggers this fault to prevent potential electric shock hazards and equipment damage. Ground fault detection mechanisms are employed to identify any unintended paths to ground, which can arise from damaged wiring, moisture ingress, or component degradation.

Symptoms:

The Huawei FusionSolar inverter displays alarm ID 2063 on the monitoring app, accompanied by a red LED indicator. Users may notice a significant drop in energy production, with the inverter entering a fault state and ceasing operation. The system may also provide alerts regarding isolation faults, indicating a potential issue with the insulation resistance of the solar array.

Possible Causes:

Insulation resistance failure due to damaged wiring or connectors.
Ground fault in the solar array or inverter circuitry.
Moisture ingress in junction boxes or inverter enclosure.
Incorrect system or maintenance practices leading to compromised insulation.
Aging components within the inverter affecting performance and safety.

Solution:

1

Disconnect the inverter from the utility grid using the AC and DC disconnect switches to ensure safety.
2

Use a multimeter to perform an insulation resistance test on the array wiring, ensuring readings are above the minimum threshold (typically 1 MΩ).
3

Inspect all wiring and connectors for visible damage or signs of wear, replacing any compromised components.
4

Check the junction boxes for moisture ingress and ensure that all seals are intact; replace any damaged boxes.
5

Reconnect the inverter and monitor the system via the monitoring app for any reoccurrence of the fault code.
6

Document any repairs or replacements made and schedule regular maintenance checks to ensure ongoing system integrity.

Safety Warning:

It is crucial to have any electrical work performed by a licensed electrician or certified solar installer to ensure compliance with safety standards and regulations.

Prevention:

To prevent future occurrences of fault 2063, ensure that all system practices comply with NEC standards, regularly inspect and maintain wiring and connectors, and keep junction boxes sealed against moisture. Implement routine insulation resistance testing as part of a preventive maintenance plan to detect issues before they lead to system faults.

Frequently Asked Questions

•What does Alarm ID 2063 indicate?

Alarm ID 2063 indicates an isolation fault in the Huawei FusionSolar system, which can affect performance. It's crucial to address this issue promptly to ensure system safety and efficiency.

•How can I check for isolation faults?

To check for isolation faults, inspect the wiring and connections for any damage or disconnections. Use a multimeter to measure insulation resistance and ensure it meets the manufacturer's specifications.

Huawei FusionSolar Error Code 2063 – Meaning, Causes & Solution

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Frequently Asked Questions

•What does Alarm ID 2063 indicate?

•How can I check for isolation faults?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention: