Solar Panels Not Generating or Generating Little — Most Common Causes
A drop in solar panel system generation is rarely a random occurrence — there is always a specific cause. Our solar panel diagnostics with thermal camera and electrical measurements quickly identifies the problem and prepares a precise repair plan.
Inverter error code or failure
The inverter shows an error code, keeps restarting or is completely inactive. Our technicians know the error codes of all popular brands (Huawei, Fronius, SMA, Sungrow, Growatt) and will resolve the precise cause.
Hotspot effect in panels
Individual panel cells overheat and cause localised power losses. With a thermal camera we identify damaged cells that are invisible to the naked eye but significantly reduce system generation.
Damaged cable or MC4 connector
MC4 connectors can oxidise, loosen or suffer physical damage. Even one fault in a string reduces generation from the entire string. We locate and replace precisely.
Panel damage after hail
Hail can cause microcracks in the glass or PV cells that are invisible to the naked eye, but a thermal camera detects them. We replace damaged panels with identical or upgraded models.
Roof leak
Incorrectly installed or ageing mounting brackets can create holes and leaks. We assess installation quality, seal securely and replace brackets if necessary.
Monitoring or communication fault
System is operating but data doesn't appear in the app or portal. We restore WiFi, Ethernet or RS485 connectivity and re-establish data transmission.
Solar Panel Diagnostics — What We Do During a Visit
Thermal camera scanning
An infrared thermal camera detects panel hotspot effects, damaged cells and overheating connections that cannot be spotted visually. The fastest and most precise solar panel inspection method.
Electrical measurements
We measure Voc (open-circuit voltage), Isc (short-circuit current) and insulation resistance. We compare with manufacturer specifications and identify deviations.
Inverter log analysis
We download and analyse the inverter's error log, energy generation data and warnings. This often allows the problem to be diagnosed before the physical inspection.
Visual and mechanical inspection
We check the visual condition of panels, mounting brackets, cable routing, MC4 connector condition and roof penetration seals.
Solar Panel Repair Process — A to Z
Call or fill in the form
Describe the problem — what you've noticed, when it started, what the inverter shows. We respond within 5 minutes and often provide an initial assessment over the phone.
Visit and full diagnostics
A technician arrives within 1–3 working days. We carry out thermal camera scanning, electrical measurements and inverter log analysis.
Quote and confirmation
After diagnostics we prepare a precise repair quote. You make the decision — only then do we start work. No surprises.
Repair and verification
We carry out the repair, then verify system operation with measurements and monitoring data. We hand over an acceptance certificate.
We Repair Any System — Regardless of Installer
We service solar panel systems across Latvia regardless of who installed them. We work with all popular brands — Huawei, Fronius, SMA, Sungrow, GoodWe, Growatt, SolarEdge and others. If your original installer no longer exists or isn't responding — we are here.
After repair we recommend looking at our regular maintenance service — annual maintenance prevents most problems before they become expensive emergencies.
Every repair we carry out is guaranteed. If the problem recurs or the work quality is unsatisfactory — we return and resolve it at no extra cost. Our goal is a system that works, not a repair on paper.
Why Trust Us with Solar Panel Service?
Thermal camera diagnostics
Not all service companies use a thermal camera. Our technicians use it to detect problems that a standard inspection misses entirely.
Certified specialists
Certified electricians with experience working on solar panel systems and all popular inverter brands.
Fast response
We respond within 5 minutes and arrive within 1–3 working days. System downtime costs money every day — we understand that.
Transparent pricing
Quote before work begins. You know the costs upfront — no surprises after the repair is complete.
Repair certificate and documentation
After every repair we issue an acceptance certificate with a description of work completed and warranty terms.
All of Latvia
We serve homes and businesses across Latvia — including outside Riga and in regional towns.