Solax Inverter Problems

In this article, we will explore a forum discussion where solar power enthusiasts shared their experiences with Solax inverter problems. We will delve into the issue, the steps taken to address it, and potential solutions without referring to the forum directly.

Identifying Solax Inverter Issues

The Problem: A forum participant reported encountering recurring issues with their recently installed solar power system featuring a Solax inverter. The problem manifested as the MCB (Miniature Circuit Breaker) repeatedly tripping, which led to the interruption of the solar power system’s operation. The issue initially occurred following a thunderstorm but persisted even during fair weather conditions.

Diagnostic Steps: The participant detailed a series of steps taken to diagnose and resolve the issue:

1. AC Re-Gassing: Initially, the solar power system was re-gassed to ensure that it was not experiencing any refrigerant leaks.
2. Compressor Inspection: The compressor’s functionality was checked, ensuring that it could spin freely without any obstructions.
3. Electrical Testing: Voltage measurements were taken at various points in the system to identify any electrical irregularities. One of the cables supplying power to the compressor clutch showed approximately 0.4V, while the other remained at 0V.
4. Pressure Switch Replacement: In an effort to address the issue, the pressure switch on the condenser was replaced. However, this change did not resolve the problem.
5. Fuse and Relay Examination: All relevant fuses and relays were inspected to ensure they were in proper working order.
6. Professional Assistance: Seeking expert help, the participant engaged a solar installer who conducted diagnostics. They agreed that the issue pertained to the power supply to the compressor clutch. However, further extensive wiring checks were recommended, with the installer estimating that it might require more than three hours or even a full day of work, incurring hourly costs.

Seeking Effective Solutions

As the MCB continued to trip despite several attempts to rectify the issue, the participant was left searching for more effective solutions. The Solax inverter’s design and its interaction with other components within the solar power system may have played a crucial role in the problem.

Potential steps to address Solax inverter problems and similar issues include:

1. Wiring Diagram Analysis: Acquiring a detailed wiring diagram specific to the Solax inverter model and the solar power system can aid in identifying key components and their connections.
2. Direct Clutch Engagement Test: To verify the functionality of the compressor clutch and the entire air conditioning system, a direct 12V supply to the clutch can be applied cautiously. This test should be conducted with care to avoid potential damage to the compressor.
3. Systematic Component Check: Carefully inspect all electrical components in the system, including relays, controllers, and sensors, using the wiring diagram as a guide. Verify that electrical signals are reaching these components and that they are operating correctly.
4. Consider Safety Controls: Recognize that air conditioning systems incorporate safety controls that must be met before the compressor engages. These controls may include factors such as pressure and temperature.
5. Consult Professionals: If the issue persists and requires in-depth diagnostics, consider enlisting the expertise of experienced technicians with knowledge of solar power systems and their electrical components.

In conclusion, addressing Solax inverter problems or issues within a solar power system can be complex. However, a systematic approach to testing and diagnosing the problem, along with professional assistance when needed, can help uncover the root cause and lead to effective solutions, ensuring the uninterrupted operation of your solar power system.