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Long-Term Operation and Maintenance Guide for Jinko Solar Systems: Common Fault Troubleshooting and Lifespan Extension Tips

Common Fault Troubleshooting and Lifespan Extension Tips

2025-12-26

I. Core of Daily Operation and Maintenance: 3 Key Actions to Extend System Lifespan

Jinko solar panels have strong environmental adaptability due to their high-quality corrosion-resistant frames, high-protection glass, and other advantages, but daily basic operation and maintenance are still indispensable. Simply put, doing the following 3 things well can ensure your jinko solar panels wholesale system operates stably for decades.

1. Regular Cleaning: Targeted Response to Africa's Special Environment

Sand and dust in Africa, salt spray in coastal areas, bird droppings in rural areas, etc., are all "efficiency killers" of solar panels. Even the high-light-transmittance panels supplied by jinko solar wholesale will experience a 10%-30% drop in power generation if dirt accumulates for a long time.

Cleaning points: ① Frequency: Once every 2-3 months in dusty areas (such as the edge of the northern desert), once a month in coastal areas, and can be extended to once every 4-6 months in rainy areas; ② Method: Gently wipe with a soft brush and warm water, avoid using detergents (which will damage the anti-reflective coating), and it is recommended to operate when the panels are cool in the early morning or evening to prevent glass cracking due to temperature alternation; ③ Special scenarios: Coastal users can use neutral anti-salt spray detergent when cleaning, and dry with a dry cloth after cleaning to reduce salt residue.

2. Periodic Inspection: 10 Minutes a Month to Detect Potential Problems

No professional tools are needed for inspection. Focusing on the following 4 parts can help avoid major faults in advance:

Panel surface: Check if the jinko solar panels wholesale panels have cracks, discoloration, bulging of the backsheet, etc. Once damage is found, contact after-sales service for replacement in time to avoid water infiltration damaging the internal cells;
Wiring and interfaces: Check if the cables are worn or aged, and if the interfaces are corroded or loose. Especially before the rainy season, ensure the waterproof tape at the interfaces is intact to prevent short circuits;
Mounting brackets and fasteners: Africa has many strong wind weather conditions. It is necessary to regularly check whether the bracket bolts supporting the jinko solar wholesale system are tight to avoid panel tilting affecting light collection;
Inverter status: Observe the indicator light of the inverter. It is usually green and always on during normal operation. If a red alarm or flashing occurs, record the fault code in time to facilitate subsequent troubleshooting.

3. Seasonal Maintenance: Responding to Extreme Weather Challenges

High temperatures in Africa's dry season, heavy rains in the rainy season, and hailstones in some areas may all affect the system. Seasonal maintenance should focus on the following: ① Dry season: Ensure the ventilation gap (recommended 10-15cm) between the panels and the roof is unobstructed to help jinko solar panels wholesale panels dissipate heat and avoid efficiency reduction due to high temperatures; ② Rainy season: Check the drainage system in advance to prevent roof water accumulation from soaking the brackets and interfaces; ③ Hail-prone areas: Lightweight hail guards can be installed to protect the panel glass from cracking.

II. Common Fault Troubleshooting: 5 Types of Problems You Can Solve Yourself Without Calling a Technician

When many users encounter no power generation or a drop in power generation, their first reaction is to call maintenance personnel. In fact, many small problems can be solved through simple troubleshooting. The following are 5 common types of faults and corresponding solutions, suitable for mainstream jinko solar wholesale system models.

1. No Power Generation at All: First Check the "Basic Circuit"

Symptoms: No display on the inverter, no solar power supply at home.

Troubleshooting steps: ① Check if the solar-specific circuit breaker in the distribution box has tripped. If it has tripped, close it and observe if it recovers; ② Check if the connection line between the inverter and the battery is loose, re-plug and fasten the interface; ③ If an off-grid system is used, check the battery voltage. If the voltage is too low (below 10V), the battery may be damaged or not charged for a long time. You can try disconnecting the load and letting it stand for 1 hour before testing. If there is still no improvement, contact for battery replacement.

2. Sudden Drop in Power Generation: Prioritize Cleaning + Check for Obstructions

Symptoms: The system still generates power, but the power generation is reduced by more than 30% compared with usual.

Troubleshooting steps: ① First, check if the panels are dusty or obstructed (such as tree branches, billboard shadows). Clean or remove the obstructions and observe for 1-2 days; ② Check if there have been extreme weather conditions (such as heavy rains, sandstorms) recently. If there is dirt residue on the panels, they need to be thoroughly cleaned; ③ If there is still no improvement after cleaning, you can observe the inverter background data (some models support viewing via mobile APP). If the power generation of a single panel is abnormally low, there may be a panel fault. Contact after-sales service for testing.

3. Inverter Alarm: Find the Cause by Comparing Fault Codes

Symptoms: The inverter has a red alarm light or displays a fault code (such as "E1", "E2").

Troubleshooting steps:

① Refer to the inverter manual supporting the jinko solar wholesale system to compare the meaning of the fault code: "E1" is mostly a grid fault (grid-connected system), and you can check the grid connection; "E2" is mostly a voltage abnormality, check the battery or panel voltage;

② If it is a "high-temperature alarm", check if the inverter ventilation is good, avoid direct sunlight, and a sunshade can be installed;

③ If the fault code cannot be solved by yourself, take a screenshot and save it, then contact Solarizing's local after-sales team, and professional personnel will come to deal with it quickly.

4. Battery Not Holding Charge: Check Charging and Discharging Settings

Symptoms: Normal power generation on sunny days, but power cuts quickly at night or during power outages.

Troubleshooting steps: ① Enter the inverter settings interface to check the charge and discharge protection parameters. Ensure the charging voltage (for example, the charging voltage of a 12V system should be about 14.4V) and discharge cut-off voltage (for example, 10.8V) are set reasonably to avoid failure to fully charge the battery or over-discharge due to incorrect parameters; ② If the parameters are normal, the battery may be aging. Contact to test the battery capacity. If the capacity is lower than 80%, replacement is recommended (the normal service life of lithium batteries is 8-10 years).

5. "Hot Spots" on Panels: Timely Handling to Prevent Damage

Symptoms: When detecting with an infrared thermometer (or touching with hands), it is found that the local temperature is significantly higher than other areas.

Troubleshooting steps: "Hot spots" are mostly caused by local obstruction of the panel, damaged cells, or loose wiring connections, which will accelerate panel aging in the long run. ① First, remove the obstructions (such as bird droppings, fallen leaves); ② If there are still hot spots, contact after-sales service to test the internal cells of the panel. If necessary, replace the original jinko solar panels wholesale panel to ensure the overall performance of the system.

III. Operation and Maintenance Pitfalls to Avoid: Never Make These 3 Mistakes!

1: Cleaning panels with a high-pressure water gun - High-pressure water flow will break through the sealant at the edge of the panel, leading to water ingress and damage, even for high-protection jinko solar panels wholesale panels;
2: Disassembling panels or inverters by yourself - Jinko Solar's product warranty terms clearly state that self-disassembly will result in the loss of warranty. When encountering complex faults, be sure to contact regular after-sales service;
3: Ignoring corrosion of wiring terminals - The humid and salt-spray environment in Africa is prone to corrosion of terminals. If blackening or rusting of terminals is found, failure to replace them in time will cause poor contact and even fire.

Conclusion: Do a Good Job in Operation and Maintenance to Let Jinko Solar Systems Continuously Create Value

The service life of a jinko solar wholesale solar system can reach 25-30 years. Daily operation and maintenance is like a "regular physical examination" for the system. Spending a small amount of time and energy can avoid faults, improve efficiency, and maximize the value of every investment. Whether you are a household user or a small business owner, you can easily safeguard reliable power supply by following the operation and maintenance points and fault troubleshooting methods in this article.

If you encounter unsolvable problems during operation and maintenance, or need to obtain an exclusive operation and maintenance manual for the jinko solar panels wholesale system, please feel free to contact Solarizing at any time. We not only provide high-quality Jinko solar products but also accompany you throughout your operation and maintenance journey, allowing you to use safe and worry-free solar power.

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