Solar & Inverter Maintenance in South Africa: What to Do When Your Installer Disappears
If your solar or inverter installer has closed shop, your system isn't bricked — but you need a wireman-licensed electrician with the right brand experience to take over maintenance. A 2026 annual solar service runs R1,500 to R3,500. Battery replacement on a 2022 lithium install costs R8,000 to R45,000 depending on capacity. Eskom marked 341 consecutive days without loadshedding by April 2026 (Eskom Media Statement, March 2026), which means your system now exists for backup and resilience rather than daily reliance — and that changes the maintenance calculus. This guide covers diagnostics, finding a maintainer, and the 2026 cost picture.
Tens of thousands of South African homeowners installed inverter and solar systems between 2022 and 2024 during the worst of the loadshedding crisis. Most of those installations were done at speed, by installers who have since closed or scaled back. The systems are now three to four years old, and the silent failure mode is starting: degraded batteries, faulty MPPTs, intermittent fault codes, and apps that no longer connect to the inverter.
- Inverter showing fault codes (E0xx series typical for Sunsynk, F0xx for Deye)
- App disconnected — Wi-Fi dongle failure or installer's monitoring account closed
- Battery not reaching full SoC even on sunny days
- Inverter making unusual noise (fan failure)
- Output power lower than spec
- Random restarts during peak generation
The 2022 to 2024 solar boom drew thousands of small installers into the market. As scheduled loadshedding eased through 2025, new-install solar demand fell sharply (industry estimates put the drop in the 60 to 80% range). Margins on maintenance work alone are too thin to support most of those businesses. Many have closed, merged, or pivoted to commercial-only work. If your installer is gone, you are not alone — and you do not need them specifically to maintain the system.
Manufacturer warranties are separate from installer warranties and usually transfer with the equipment. Sunsynk inverters carry 5- to 10-year manufacturer warranties; Deye, Victron and SolarEdge similar. Battery warranties are typically 5 to 10 years depending on brand. Even if the installer is gone, the manufacturer's warranty is still valid — but only if a qualified wireman-licensed electrician handles repairs and lodges the claim correctly.
Many electricians refuse to take on orphaned solar systems. The honest reason: liability. If they touch the system and something fails six months later, they may be blamed for it. The ones who do take it on charge a diagnostic fee up-front (typically R1,500 to R3,500) before quoting on repairs. That fee is fair — it covers the time to assess what was installed and whether the existing work meets SANS 10142-1.
| Service | Typical 2026 cost |
|---|---|
| Annual service (panels, connections, software) | R1,500 – R3,500 |
| Inverter diagnostic visit | R1,500 – R3,500 |
| Battery replacement (5kWh lithium) | R28,000 – R45,000 |
| Battery replacement (3kWh lithium) | R15,000 – R28,000 |
| Wi-Fi dongle / monitoring restore | R1,200 – R3,500 |
| MPPT or board-level repair | R3,500 – R12,000 |
| Full system removal + decommissioning | R8,500 – R18,000 |
If your system is small (under 3kW), heavily degraded, and you have grid stability now, removal is a defensible decision. If it's mid-size (3 to 8kW), repairing makes sense — the panels typically have 25-year warranties and have a long life left. Larger systems with EV charging in your near-future plans justify expansion. There is no universal answer; a proper diagnostic visit will give you the call.
Ask for the electrician's wireman's licence class (Single-Phase, Three-Phase, or Master Installation Electrician) and registration number. Verify with the Department of Employment and Labour. For contractor-level Pros, the ECB (Electrical Conformance Board) listing is a useful additional trust reference. ClicknDone checks both at onboarding.
