Repair
Solar Photovoltaic systems are generally maintenance free. But like all systems that are built on mechanical and electrical components, maintenance and repair are inevitable. We use state-of-the-art diagnostic tools to troubleshoot your system to uncover problems and restore it to its maximum potential.
We service systems whether they are on warranty, out of warranty, leased systems or under a power purchase agreement.
Obvious Solar Systems Problems to Check
- Are inverters working? Owners of central inverters (also known as string inverters) can easily see the status lights on the display panel. Micro-inverter owners must rely on their monitoring device to see problems. The monitor should display the total working micro inverters or these can also be checked via the manufacturer’s website. Inverters should be checked monthly to avoid surprise power bills!
- Is the system on? Seems pretty obvious but there have been micro inverter owners who failed to check their monitor monthly only to find the circuit breaker was turned off by another contractor.
- Is the array clean? This may involve climbing on the roof which isn’t easy on a building taller than 1-story. If possible, take a look above and below the solar array and check for dusty panels, bird poop, damaged glass, bird nests, and accumulated leaves and debris.
- Is the array mechanically intact? Look for drooping wires under the array which can be damaged from scraping against roofing due to wind action. Ensure no rodents have been eating the wires. Check solar panel cells, racking, clamps, bare copper ground wires, and electrical conduit for signs of corrosion.
- Did a tree grow? Over time, trees and shrubs grow, causing shading on the solar array which can cause lower power production.
Low Power Production
Not so obvious are problems that cause a system to under produce. We diagnose using state-of-the-art tools such as the FLIR infrared camera and insulation resistance meters to find:
- Loose or weak wires and insulation.
- Ground faults.
- Incorrect wiring. Yes, we have seen “helpful” friends try to fix problems.
- Internal module damage to the solar cells or solder joints.
- A blown string fuse or circuit breaker.
