Learn about Bosch Error Code 2201, its meaning, causes, and how to fix the isolation fault Riso.
Error Code 2201 indicates an isolation fault in the Bosch BPT-S inverter, which can affect performance. It's crucial to address this issue to ensure safe operation.
To troubleshoot isolation faults, check the inverter's connections and grounding. Ensure that all components are properly installed and functioning to prevent further issues.
The Bosch BPT-S inverter triggers Error 2201 when it detects an isolation fault, indicated by low insulation resistance (Riso) between the DC array and ground. This fault detection is crucial for preventing potential electric shock hazards and ensuring the safe operation of the inverter. The inverter continuously monitors Riso values, and if these fall below a predetermined threshold (typically 1 MΩ), it will shut down to protect both the system and personnel. Ground fault detection is a key safety feature that mitigates risks associated with insulation failures, which can lead to electrical fires or equipment damage.
Always consult a licensed electrician or certified solar installer when troubleshooting or repairing electrical systems to ensure compliance with safety standards and local regulations.
Regular maintenance, including periodic inspections of the array, junction boxes, and wiring, can help identify potential issues before they lead to isolation faults. Ensuring that all system practices adhere to NEC standards will also reduce the likelihood of future faults. Additionally, using weatherproof connectors and protective coverings can mitigate risks associated with moisture ingress.