Solar panels are a fantastic long-term investment, but like any technology, they’re not immune to faults.
While they’re designed to be durable and low-maintenance, issues can arise if systems are left unchecked.
So, can solar panels break down? Yes, but with the right maintenance in place, breakdowns are rare and preventable.
In this guide, we’ll explain how solar panels can develop problems, what signs to look out for, and how Fit Solar’s Fit Care service can keep your system running smoothly saving you stress, time, and money.
Can Solar Panels Break Down?
While solar PV systems are known for their reliability, they can experience faults especially without regular maintenance. Some common issues include:
1. Inverter Failures
The inverter is the most active component in your system, converting DC energy into usable AC electricity. Over time, it may degrade or fail completely—especially after 10–15 years.
2. Wiring or Connection Faults
Moisture ingress, rodent damage, or poor installation can lead to wiring faults, posing both efficiency and safety risks.
3. Panel Damage or Degradation
Though solar panels are built to last 25+ years, they can still suffer:
- Microcracks from weather impact
- Delamination or water ingress
- Build-up of dirt, moss, or bird droppings that reduces performance
4. Performance Drop-Off
Even without visible damage, a system can start underperforming—especially if it’s not cleaned or inspected regularly.
Signs Your Solar Panels May Be Faulty
Watch out for the following warning signs:
- Sudden drop in electricity output
- Inverter warning lights or error messages
- High energy bills despite sunshine
- Buzzing sounds from equipment
- Visible dirt, debris, or damage on panels
If you’re unsure how your system is performing, try our free Solar Panel Calculator to compare estimated output with actual performance.
How Fit Care Prevents Breakdowns Before They Happen
Our Fit Care plans are designed to catch faults before they cause major issues—giving you complete peace of mind for a low monthly fee.
Fit Care – £20/month
- Annual system performance check
- Annual visual inspection of panels
- Remote system monitoring
- Safety assessment of all components
Fit Care+ – £25/month
Everything from Fit Care, plus:
- Free emergency call-outs
- 24/7 care line
- 24-hour home electrical assistance
These plans are ideal for homeowners who want to protect their investment, avoid sudden repair bills, and ensure optimal performance all year round.
Explore the full details here: Fit Care Maintenance Plans
Do You Really Need Solar Maintenance?
If your system is new, it may be tempting to skip regular checks—but this can be a false economy. Even minor faults can lead to:
- Reduced system output
- Voided warranties (if systems aren't inspected)
- Expensive emergency repairs
- Undetected safety issues
And if you plan to live in your home for the long term—or eventually sell—keeping your system healthy adds real resale value and helps maintain a strong EPC rating.
Don’t Wait for a Breakdown, prevent One with Fit Care
Yes, solar panels can break down but they don’t have to. With professional servicing and real-time monitoring, faults can be spotted early, resolved quickly, and avoided entirely.
At Fit Solar, our Fit Care and Fit Care+ plans offer affordable, proactive maintenance that protects your solar investment and your peace of mind.
Don’t wait until something goes wrong.
Sign up for Fit Care today or contact us for a quote tailored to your system and home.
