When the system power generation is abnormal, users can troubleshoot common causes and steps by themselves.

When the system power generation is abnormal, users can troubleshoot common causes and steps by themselves.

When you find that the power generated by your home's wind-solar hybrid system is significantly lower than normal for several days, there is no need to seek professional repair immediately. By following these safe and simple steps for initial troubleshooting, common problems can often be discovered and resolved quickly.

Step One: Safety Confirmation and Preliminary Observation

Before taking action, be sure to switch the system to "Shutdown" or "Standby" state through the controller or special switch, ensure that the power generation side stops working, and then conduct subsequent inspections. This is the most important safety prerequisite.

Check the weather factors: First, confirm whether it has been continuously cloudy and windless weather in the past few days? If so, the reduction in power generation is a normal and natural phenomenon and there is no need to worry too much.

Check the controller status and alarms: Carefully observe the system controller display screen to see if there are clear fault codes or alarm indicators (such as "overvoltage", "undervoltage", "overload", "communication failure", etc.). Consult the manual to understand the general meaning of the alarm.

Step 2: Sub-item investigation - solar energy part

If the power generation is still abnormal during the day after eliminating weather factors, focus on checking the solar panels.

Look for obstructions: Visually inspect all solar panel surfaces. Is it covered with fallen leaves, bird droppings, thick dust or snow? Even partial occlusion will seriously affect the power generation efficiency of the entire panel or even the entire group of panels. Clean the surface with a soft bristle brush or clean water.

Look at the connections: Check the DC cables and plugs from the solar panels to the controller for visible damage, damage from animal bites, or fraying from brackets. Check whether the junction box is tightly closed and whether there are any signs of water intrusion.

Check the status (when conditions permit): When it is sunny during the day, after shutting down, quickly touch the back of the solar panel with the back of your hand (be careful to avoid touching high-temperature parts for a long time). If the temperature of a certain panel is significantly lower than that of other panels, it may mean that its internal circuit has failed and cannot work properly.

Step 3: Sub-item inspection - wind turbine part

If power generation is also unusually low at night or on windy days, you need to pay attention to the wind turbine.

Listen and watch: When the wind is strong, observe whether the fan is rotating normally. If it doesn't turn at all, it may be a mechanical jam or electrical failure. If the rotation is slow and weak, the bearing resistance may be too high.

Check the surroundings: Check whether there are foreign objects (such as plastic bags, kite strings) wrapped around the fan blades, which will seriously hinder rotation. Check whether the tower pole is vertical and whether the fastening bolts are loose.

Check the tail (for horizontal axis fans): Check whether the tail rudder is flexible and can always align the fan with the wind direction. If the tail rudder is stuck, the fan cannot face the wind and the efficiency will drop sharply.

Step 4: Check public parts and records

If the power generation components are checked correctly, the problem may lie in the public link.

Check the controller and instrument: Try to restart the system controller (power off and then on again). Check whether the smart meter or sensor wiring used for monitoring is disconnected. Sometimes it is a display error rather than an actual power generation error.

Recording and comparison: Compare the current power generation data (such as instantaneous power) with historical data in the same season and weather conditions in the past to confirm whether it is really "abnormal".

What should you do when you can't fix it on your own?

If the problem is still not found after completing the above troubleshooting, or if it is found but cannot be solved (such as internal cable breakage, complex controller failure), please:

Photo/Video Recording: Take photos or videos of fault phenomena, abnormal components, and controller alarm codes.

Collect key information: record the power generation data of the system in recent days and the time when the abnormality started.

Contact a professional: Provide the above information to the installer or after-sales service personnel. Clearly describe the troubleshooting steps you have taken, which can greatly help them quickly locate the problem and save both parties time.

Summary: Safety first, from simple to complex

The core principle of user self-checking is: start with the simplest weather and visual inspection, and work from the outside in to ensure safety. Most abnormal power generation is caused by simple reasons such as surface obstruction and entanglement of debris. By developing a habit of regular observation and simple maintenance, you can become the first line of defense in keeping your home's energy system running efficiently.