--- title: "Troubleshooting" url: "https://halcolenergy.com.au/troubleshooting/" site_name: "Halcol Energy" content_type: "page" breadcrumbs: "Home > Troubleshooting" description: "Halcol Energy\'s solar troubleshooting guide covers Wi-Fi connection loss, system shutdown, inverter lights and underperformance. Fix your system in 5 steps t..." language: "en" word_count: 479 reading_time: "3 min read" summary: "Troubleshooting Your Solar System We understand that occasional issues with your solar system can be frustrating. To help, we’ve compiled a guide to troubleshoot common problems and get your syst..." last_modified: "2026-07-21T22:39:36+10:00" schema_type: "WebPage" estimated_tokens: 623 --- # Troubleshooting ![Troubleshooting OG Image](https://halcolenergy.com.au/wp-content/uploads/2026/07/Troubleshooting-OG-Image-800x420.png) ## Troubleshooting Your Solar System We understand that occasional issues with your solar system can be frustrating. To help, we’ve compiled a guide to troubleshoot common problems and get your system back on track. If further assistance is required, don’t hesitate to contact us. ### 1. Wi-Fi Connection Issues If your monitoring app is not showing solar production data but your inverter has a solid green light (or solid blue light on newer Sungrow models), your system has likely lost its Wi-Fi connection. This may occur if you’ve recently: - Changed your Wi-Fi modem or internet provider - Updated your NBN connection - Changed your Wi-Fi password **Solution**: Re-establish your inverter’s Wi-Fi connection. We’ve attached instructions for the following brands: - [Fronius](https://halcolenergy.com.au/wp-content/uploads/2024/12/Fronius-Wifi-Connection-Instructions.pdf) - [Redback](https://halcolenergy.com.au/wp-content/uploads/2024/12/Redback-Wifi-Connection-Instructions.pdf) - [SMA](https://halcolenergy.com.au/wp-content/uploads/2024/12/SMA-Wifi-Connection-Instructions.pdf) - [Sofar](https://halcolenergy.com.au/wp-content/uploads/2024/12/Sofar-Wifi-Connection-Instructions-IP-Access.pdf) - [SolarEdge](https://halcolenergy.com.au/wp-content/uploads/2024/12/SolarEdge-Wifi-Connection-HD-Waves_No-Screen.pdf) - [Solax](https://halcolenergy.com.au/wp-content/uploads/2024/12/Solax-Wifi-Connection-Instructions-IP-Access.pdf) - [Sungrow](https://halcolenergy.com.au/wp-content/uploads/2024/12/Sungrow-Wifi-Connection-Instructions-via-iSolarCloud-App.pdf) ### 2. System Shutdown Procedure A system shutdown can resolve many temporary issues, such as software glitches or error lights. **When to Shut Down Your System**: - Red light on the inverter - Flashing green light during the day - Flashing blue light (Sungrow newer models) - Error codes or fault messages **How to Shut Down Your System**: Refer to the attached instructions for your inverter model. After shutting down, leave the system off for **5 minutes** before restarting. ### 3. Underperforming System If you believe your solar system is not performing as expected, here’s how to check: 1. **Check Your Inverter** - Look for a solid green light (or solid blue for newer Sungrow models). 2. **Monitor Daily Production** - At the end of a sunny day, note your solar system’s kWh production. 3. **Estimate Expected Production** - Use this formula: **PV Array Size (kW) × 4.2 (optimal solar hours)** Example: A 6.6 kW system should produce approximately **27.72 kWh** on a sunny day. 4. **Consider Other Factors** - Seasonal changes (winter vs. summer) - Shading, dirt, or age of panels **If your system is producing significantly below this estimate**, it’s time to raise your concerns with us. ### 4. No Lights on Your Inverter If your inverter has no lights, it may indicate one of two issues: - **Tripped Circuit Breaker**: Check the “Main Switch (Inverter Supply)” circuit breaker. If it’s OFF (down position), switch it back ON. - **Inverter Failure**: If the circuit breaker is ON and there are still no lights, your inverter may be faulty and need replacement. ### 5. Understanding Inverter Lights Each inverter brand has unique light codes that indicate the system’s status. Refer to the attached guides for detailed explanations for these brands: ### 6. No Hot Water - [Redback Smart Load Control](https://halcolenergy.com.au/wp-content/uploads/2024/12/Redback-Energy-Meter-No-Hot-Water-1.pdf) - [Analogue Hot Water Timer](https://halcolenergy.com.au/wp-content/uploads/2024/12/No-Hot-Water-Analogue-Timer.pdf) ### 7. Lost Power but my Battery hasn’t kicked in? If you experience a power outage and you have a battery with backup installed, there are a few things you can do before calling us to troubleshoot the issue. - [Power Outage Battery Troubleshooting](https://halcolenergy.com.au/wp-content/uploads/2024/12/Power-Outage-Battery-Troubleshooting.pdf) For further assistance, please contact our support team (available during office hours). We’re here to help ensure your solar system runs smoothly and efficiently! --- _View the original post at: [https://halcolenergy.com.au/troubleshooting/](https://halcolenergy.com.au/troubleshooting/)_ _Served as markdown by [Third Audience](https://github.com/third-audience) v3.6.1_ _Generated: 2026-10-05 13:04:33 UTC_