Solis Error Code 1041 – Meaning, Causes & Solution -... | solardiagnostics.org

Technical Background:

Error 1041 indicates that the DC bus voltage is excessively high, triggering the inverter's protective mechanisms. The inverter continuously monitors the DC voltage from the solar array. If the voltage exceeds predefined thresholds, often due to increased irradiance or system anomalies, the inverter will shut down to prevent damage. This fault can also arise from improper resistance measurements, where insulation resistance testing reveals inadequate insulation leading to voltage spikes, or from ground fault detection systems identifying irregularities in the electrical flow.

Symptoms:

Homeowners may notice the inverter displaying Error 1041 on its LCD screen or through the monitoring app. This error typically results in a halt of power production, which could be accompanied by blinking LED indicators on the inverter. Users may also observe a sudden drop in energy output, with real-time production metrics showing zero or significantly reduced values.

Possible Causes:

High DC voltage due to excessive irradiance on the solar array.
Faulty or malfunctioning string inverter components, such as capacitors or voltage sensing circuits.
Incorrectly configured system voltage settings within the inverter.
Poor connections or damaged wiring in the DC circuit leading to voltage spikes.
Environmental factors such as extreme temperatures affecting the inverter's performance.
Use of incompatible or damaged solar panels that exceed the inverter's voltage limits.

Solution:

1

Verify the DC voltage at the inverter's input terminals using a multimeter. Ensure that the voltage is within the manufacturer's specified range.
2

Inspect all connections and wiring between the solar array and the inverter. Look for signs of wear, corrosion, or damage.
3

Check the configuration settings on the inverter, ensuring that it matches the specifications of the solar array.
4

If the voltage readings are high, disconnect the array using an MC4 disconnect tool and test each string individually to identify potential faults.
5

Inspect the inverter's internal components if accessible, looking for any signs of failure or damage.
6

If necessary, consult the manufacturer's documentation for specific troubleshooting guidance related to Error 1041.
7

If the issue persists, contact a licensed electrician or certified solar installer for further diagnosis and repair.

Safety Warning:

Always prioritize safety when working with electrical systems. It is critical to engage a licensed electrician or certified solar installer for any troubleshooting or repairs to ensure compliance with safety protocols and the National Electrical Code.

Prevention:

To prevent the occurrence of Error 1041 in the future, regularly maintain the solar array and inverter system. Schedule periodic inspections to check for loose connections, damaged wires, and ensure proper voltage settings. Additionally, monitor environmental conditions and consider shading or other factors that could lead to excessive irradiance. Implementing surge protection devices can also mitigate the risk of voltage spikes.

Frequently Asked Questions

•What does Error Code 1041 indicate?

Error Code 1041 indicates that the DC bus voltage is too high, which can lead to inverter shutdown. This issue may arise from overvoltage conditions in the solar array.

•How can I troubleshoot high DC bus voltage?

To troubleshoot high DC bus voltage, check the solar panel connections and ensure they are not producing excessive voltage. Additionally, inspect the inverter settings and configuration.

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Frequently Asked Questions

•What does Error Code 1041 indicate?

•How can I troubleshoot high DC bus voltage?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention: