Solar Panel Repair: Common Problems, Typical Costs and Who Pays

Solar panel repair is less about the panels than most people expect. Panels themselves rarely fail; most repair calls are for inverters, wiring, connectors, storm damage or animals. Published repair ranges run from about $100 for a small fix to a few thousand dollars for an inverter, and a warranty may cover the part but not the labor.

Key takeaways

• Federal research reports PV module failure rates of only 0.025% to 0.1% per year. Inverters are a far more common source of trouble.
• Published repair ranges (checked November 2026): chewed or loose wiring $100 to $400, cracked panel $120 to $550, inverter $150 to $3,000 or more.
• Equipment warranties often cover parts but not labor. Workmanship warranties cover installation mistakes for a limited time.
• Do not climb on the roof or open electrical boxes yourself. Panel makers say only certified personnel should inspect, and DIY work can void warranties.
• If your installer is gone, the manufacturer warranty usually still stands. You just need a new company to do the work.

Do solar panels actually need repair?

Not often. The national lab's O&M best-practices guide (from the lab formerly known as NREL, now the National Laboratory of the Rockies) says "PV module failures are rare, with a reported failure rate of 0.025%/year to 0.1%/year." EnergySage, writing in August 2025, says panels rarely fail and that problems that do occur usually trace back to installation.

What does fail is everything around the panels. The same federal guide lists inverters as "one of the most frequent causes of PV system performance loss." It also says corrective maintenance means "finding and repairing ground faults," and fixing arc faults caused by broken wires or loose connections.

Common solar panel repair problems

Here are the problems solar owners run into most, with what to look for:

• Inverter faults. A dark screen, a red light or zero production on a sunny day. EnergySage says a sudden production dip is "often due to an inverter issue."
• Loose or damaged connectors and wiring. These can trigger arc-fault or ground-fault shutdowns. Squirrels and rodents chewing cables is a known cause.
• Cracked glass or cracked cells. From hail, falling branches or someone stepping on panels. The federal guide notes "snail trails" on panels are linked to cracks in cells caused by panel flexing.
• Hot spots. Uneven dirt or shading can lead to "localized hot-spot failures," per the federal guide.
• Rust and corrosion. On connectors, frames or mounting hardware. Cost guides list it as its own repair item.
• Roof leaks at mounts. Usually a flashing problem, not a panel problem.
• Monitoring outages. EnergySage notes that a system showing no production at all may simply have an inverter that lost its internet connection.

Solar panel repair costs by problem

We found no government source for national repair prices, so the table below uses ranges published by two large home-services cost guides. Neither page shows a publication date, so we list them as checked in November 2026. Treat them as rough guides, not quotes.

Repair	Angi range	HomeGuide range
Cracked panel or broken glass	$120 to $550 (cracked); $200 to $550 (broken)	$20 to $450
Loose or chewed wiring	$100 to $400	$100 to $400
Rust and corrosion	$150 to $350	$20 to $350
Fuse	$100 to $150	Not listed
Inverter replacement	$150 to $3,000	$1,500 to $3,000
Tree branch or obstruction removal	Not listed	$75 to $850
Roof repair near the array	$360 to $1,550 (leak)	$150 to $1,000+
Panel removal (per panel)	Not listed	$200 to $500+
Minimum job fee or hourly rate	About $100 per hour	$100 to $250 minimum

EnergySage gives a similar ballpark for a basic visit: "around a couple of hundred dollars for a service visit" if the warranty does not cover labor. The big swing in each range comes from roof access, the number of parts and whether panels must come off to reach the problem.

What solar warranties cover for repairs

Most systems have three layers of protection. Knowing which one applies saves money.

Warranty	Typically covers	Watch for
Panel product and output warranty	Manufacturing defects and power loss beyond the stated limit. South Carolina's Energy Office says most systems carry a 25-year output warranty.	Damage from storms, misuse or unauthorized changes is excluded.
Inverter warranty	Repair or replacement of a defective unit, often 10 to 25 years depending on type.	Labor is often excluded. Enphase's IQ8 warranty, for example, pays shipping but not labor.
Installer workmanship warranty	Mistakes made during installation, such as loose wiring or poor flashing.	Terms vary. The federal O&M guide says installer warranties "may be only 1–5 years."

Two more things to know. First, EnergySage says work by an uncertified company can void a warranty, so ask the manufacturer for authorized service companies near you. Second, the federal guide warns that some makers "will not honor the warranty if the original purchaser no longer owns the equipment" unless it was transferred. If you bought a house with solar, check that the warranty was transferred to you.

Storm damage is usually an insurance matter rather than a warranty one. See our guide to whether homeowners insurance covers solar panels.

Safe checks you can do before calling for repair

You can narrow down the problem from the ground, without touching wiring:

1. Open your monitoring app. Is production zero, low, or just missing data?
2. Check that the inverter and your home Wi-Fi are both on. Reconnecting monitoring fixes many "outages."
3. Look at the inverter's lights or screen and write down any error code.
4. Look at the array from the ground for broken glass, debris, nests or sagging wires.
5. Compare this month's output with the same month last year.

Qcells' North American installation manual says owners should "never step on modules" and that the system "has to be inspected regularly by certified personnel," especially after storms or hail. That is good advice for any brand.

When to call a pro right away

• You see smoke, scorch marks or smell burning near the inverter or panels.
• Glass is shattered or wires are hanging loose.
• The inverter shows a ground-fault or arc-fault error that returns after a reset.
• Water is coming through the ceiling under the array.

Panels make voltage whenever light hits them, so treat every part of the system as live. For electrical faults, see our explainer on ground fault and arc fault errors.

Leased or PPA system? Call the owner first

If you lease your panels or buy power under a PPA, a company owns the equipment and usually owns the repair problem too. The Department of Energy's Energy Saver guide says "most lease and PPA arrangements will require the installer to provide system maintenance." Before you pay anyone, read your contract's maintenance section and report the problem in writing. Keep photos and screenshots of your monitoring data, since some contracts offer credits when the system underperforms. Hiring your own repair company for leased equipment can break the contract terms, so get approval first.

How to find someone to fix your system

Start with your installer if they are still in business, since a workmanship warranty may make the repair free. If they are not, call the panel or inverter manufacturer for a list of authorized service companies. Our guide on how to find a solar repair company lists the questions to ask, and our solar orphans page explains your options when the original company has closed.

Next steps

Write down your error codes and equipment model numbers, check which warranty applies, then get a written quote that splits parts from labor. To compare service providers, browse our solar company reviews.