KATAWA PROJECTS / CAPE TOWN

Solar PV Warranty & Installation Documentation Review Cape Town

Organise the evidence needed to question workmanship defects, document unusual performance and prepare a fair warranty request for an existing solar installation.

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Solar & Backup Power / Cape Town

Service assessment and practical solutions

Separate equipment warranties from workmanship concerns

PV panels, inverters, batteries and mounting systems may each carry different warranty terms. A fault appearing after installation does not automatically establish that every component is defective or that the original installer is liable. We start by gathering the invoice, model and serial numbers, installation date and the warranty documents actually supplied. If water ingress or damaged roofing is the complaint, photographs and the sequence of events matter. An objective review is more useful than replacing components before the responsible party has inspected them.

Record the symptom without unsafe investigation

Useful evidence includes inverter fault codes, dated generation records, visible damage photographed from a safe location and the circumstances in which the issue arises. Owners should not climb onto a roof or disconnect live DC connectors to prove a warranty claim. We distinguish a monitoring outage from actual loss of power production, and a shading change from a module fault. If specialist electrical testing is required, the scope and competent person should be agreed so testing itself does not compromise warranty conditions.

Check documentation and authorised status

The City’s solar guidance recommends collecting appropriate electrical CoC documents, equipment warranties, manuals and installer quality records. In a City-supplied area, authorisation of applicable PV/battery systems and their approved design are separate considerations from a manufacturer’s guarantee. Missing documents should be listed clearly, not replaced with invented dates or certificate numbers. Where a modification was performed after original installation, the review must identify what changed and whether those changes affected approval or warranty coverage.

Prepare a clear route to remedy

A useful output is a chronology of the reported issue, photographs or diagnostic reports, the equipment concerned and unanswered questions for the installing company or manufacturer. We can discuss what an independent electrical assessment could establish, but do not promise to adjudicate legal warranty disputes. Before authorising repair, the customer should understand whether the original installer has an opportunity to respond and whether an insurer is involved. The objective is a safer, better documented decision about the next step.

Recognise the situation

Common enquiries and what changes the job

Array output declined after roof repairs

Compare dated performance records, access work and visible roof changes before assuming a panel failure.

Inverter warranty card cannot be found

Serial numbers, invoice and manufacturer registration records may help reconstruct documentation.

Roof leaks after PV mounting

Document timing and affected locations; do not claim the cause without inspection.

Before booking

Information that helps define the work

Prepare the original quotation, installation date, equipment model numbers and any available approval or CoC documents.

Share dated error messages and photographs without opening electrical equipment or accessing the roof.

Quotation scope

What affects the cost and work programme?

Age and nature of the reported defect
Completeness of equipment records
Access to performance data
Need for independent qualified testing
Installer, manufacturer and approval responsibilities

Where applicable in the City of Cape Town electricity supply area, new solar PV/battery systems and relevant system changes must follow the City authorisation process. Professional sign-off and suitable approved inverters are important requirements; never activate an unauthorised modified system.

Frequently asked questions

Solar PV Warranty & Installation Documentation Review: customer questions

Does a lower power reading prove a warranty defect?

No. Weather, shading and operating modes also affect generation; diagnosis is needed.

Should I repair the array before contacting the installer?

Check warranty conditions and safety requirements first; unauthorised intervention may complicate a claim.

Is a solar CoC the same as a product warranty?

No. Compliance documents and contractual product warranties serve different purposes.