Suffolk County, NY · Long Island
Solar Panel Troubleshooting & Diagnostics on Long Island, NY
NovaLee Solutions diagnoses underperforming and offline solar systems across Long Island, NY. Most issues we find are inverter or optimizer faults, failed microinverters, tripped AC disconnects, monitoring-gateway problems, or shading from new tree growth. We troubleshoot Tesla, SolarEdge, Enphase, and legacy string-inverter systems regardless of who installed them, and we publish a written diagnostic report with the recommended fix.
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What's included
- 1. Remote check first: pull production data from your monitoring portal (we can be granted view access).
- 2. On-site visit: visually inspect the array, AC disconnect, inverter, and electrical panel.
- 3. Test inverter and optimizer health with the manufacturer's commissioning tool.
- 4. Identify the failed component(s) — bad microinverter, blown optimizer, tripped breaker, faulty Envoy/Combox/etc.
- 5. Written diagnostic report and repair quote — manufacturer warranty leveraged where applicable.
- 6. On approval, schedule the repair and re-verify production in monitoring before closing the ticket.
Typical price ranges (Long Island, NY)
|
Diagnostic visit + written report Credited toward repair if we do the work |
$250 – $450 |
|
Single microinverter replacement (Enphase) Often covered by Enphase 25-yr warranty — we file the claim |
$300 – $600 |
|
Single SolarEdge optimizer replacement Covered by SolarEdge 25-yr warranty when in window |
$250 – $550 |
|
String inverter swap (legacy systems) When the original inverter is past warranty |
$1,800 – $3,800 |
Many components carry 12-25 year manufacturer warranties. Where warranty applies we file the claim and bill only the labor allowance.
Why NovaLee for this service
- ✓We work on systems we did not install — Tesla, SunPower, SolarEdge, Enphase, and string-inverter legacy.
- ✓We file warranty claims with the manufacturer on your behalf, including shipping the failed unit back.
- ✓Bilingual diagnostic walk-through so you understand exactly what failed and why.
- ✓Documented production verification before we close the job.
Frequently asked questions
How do I know if my solar is underproducing?
Compare your monitoring app's monthly production to the same month a year ago. A drop of more than ~10% with similar weather usually signals a hardware or shading problem worth investigating.
My monitoring app says everything is fine but my bill is high — what gives?
Two common causes on Long Island: (1) household consumption increased (new EV, heat pump, addition), or (2) the monitoring gateway lost cell/Wi-Fi and is showing cached data. We can verify directly at the inverter.
Will my solar work in a PSEG LI power outage?
No — grid-tied solar without a battery shuts off during outages by code (anti-islanding). To run during outages you need battery backup; see our Tesla Powerwall page.
What does a single failed Enphase microinverter cost me?
Roughly the production of one panel — about 1/20th to 1/30th of your system. Worth fixing, but not an emergency. Enphase microinverters carry a 25-year warranty so the part is usually free.
How long do solar inverters typically last?
Microinverters (Enphase) and optimizers (SolarEdge) are warranted 25 years. Central string inverters typically last 10-15 years and are often the first thing to fail on legacy systems.
Can you fix a system installed by a company that's no longer in business?
Yes. We commonly take over orphaned systems on Long Island (a few large installers have closed). We re-establish monitoring access and quote any pending repairs.