Why Did My Solar Panels Stop Producing? (Florida Troubleshooting Guide)

Common causes: what usually stops a solar system

When a system drops to zero or close to it, the panels are rarely the problem. They are the toughest part of the system. The cause is almost always a part that converts, connects or reports their power. Here are the usual suspects, most common first, and our solar maintenance and repair guide covers the bigger picture.

First, rule out normal changes. Solar makes nothing at night and much less on heavy cloudy or rainy days. Compare today with a recent sunny day before you worry.

Tripped breaker: check this first

A tripped breaker is the top reason a system stops cold. A power surge, a grid flicker or a loose connection can flip your solar breaker to OFF.

What you can safely check: open the door of your main breaker panel and look for the solar breaker. Some homes also have a small solar breaker box near the meter or inverter. If the breaker sits in the middle or fully OFF, switch it all the way OFF and back ON one time. Never remove a cover or open the inverter itself.

If the breaker holds, you are good. If it trips again, stop. A breaker that won't stay on points to a real fault, often a loose connection making heat. That is a job for a pro, not another reset.

Inverter fault: red lights and error codes

Your inverter turns the panels' power into the kind your house uses. If it fails or faults, your output drops to zero no matter how bright the sun is.

What to look for: a status light that is red or amber instead of green, or an error on the inverter screen or app. Common ones say Grid Fault, Over Voltage or Isolation Fault. They usually point to grid conditions, wiring or a part inside the inverter, and some clear on their own while many don't.

Some systems use Enphase microinverters or SolarEdge optimizers, which are small boxes under each panel. One dead unit can knock out a single panel while the rest keep working, so you see a partial drop, not a full zero. Our guide to solar inverter red lights and error codes explains the warnings. We also service SMA, Tigo and Sol-Ark equipment.

Monitoring app: is power really down?

This one fools a lot of people. Sometimes the panels work fine, but the monitoring app lost its connection and stopped reporting. A dropped Wi-Fi signal, a new router or a dead cell connection can all blank out your data.

How to tell the difference: on a sunny day, check your utility app or meter to see if your home pulls less from the grid. You can also look at the inverter screen to see if it shows output. If the inverter works but the app is blank, it is likely a connection problem. That is fixable, and it means you weren't losing power after all, as our guide on a solar monitoring app that stopped working explains.

Storms and outages: why solar shuts off

Here in Central Florida, this is a big one. Grid-tied solar shuts itself off during a power outage on purpose. That keeps utility crews safe while they work on the lines. So if the power blinked, your solar may have gone offline, and some inverters don't restart cleanly on their own.

Summer storms, lightning and grid flickers knock systems offline often from early summer into fall. After a real storm, there can be physical damage too, like a dead inverter, a damaged wire or water getting in. Service Solar Pros checks storm damage with thermal imaging and test meters. Learn more in our after-hurricane solar system check guide.

This is also why people who want power during an outage need a battery. If your battery or Powerwall didn't carry your house, that needs its own diagnostic. We handle storm repairs across Leesburg, Tavares and all of Central Florida.

Dirty panels: a slow slide, not a sudden stop

Sometimes a slow slide in output, not a sudden zero, is just dirt. Florida pollen, lovebug residue and bird droppings can quietly cut your output, and light rain often won't wash sticky film off. If the app shows a slow decline and the glass looks filmy, start with a professional solar panel cleaning.

A sudden drop to zero is electrical, not dirt. If output has slipped only a little over many years, that may be normal aging. Our guide on how long solar panels last explains it.

Homeowner checklist: what to check in order

Run through this quick list from the ground before you call:

• Breakers: make sure the solar breakers are ON. Reset once, and don't fight a repeat trip.
• Inverter light: green is good, while red, amber or an error code is not.
• Recent outage or storm: the grid may have knocked the system offline.
• App vs. reality: check whether output is really down or just not reporting.
• Glass: filmy glass and a slow decline point to dirt, not a fault.

If it is still down after that, stop resetting things and call for help. Do not climb on the roof to look.

Calling a pro: when it is time

Call when a breaker won't stay on or the inverter shows a red light or error code. Also call if output is really down for no clear reason or you see storm or wiring damage. Service Solar Pros tests any brand from any installer, even if your installer is gone. We give you written findings with photos and confirm your output is back before we leave.

We never guess, and we never use parts you did not approve. Book a professional diagnostic, request a free quote or call (407) 270-2542.

Frequently asked questions