1. Who issues and owes the warranty?
Identify the legal seller, warranty issuer, legal manufacturer and any separate insurer or service provider. Brand language alone may not identify the obligated party.
B2B solar warranty evidence
Solar module warranty verification guide
A warranty is only as reliable as the exact issuer, model, order and written version it covers. A marketing year count, test certificate or product-category statement does not by itself define activation, exclusions, evidence, remedy, cost or claim timing.
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Six questions before relying on warranty wording
2. Which exact product and order are covered?
Match model, construction, serial range, quantity, production site, order date, PI and any model annex or referenced warranty version.
3. When does coverage start and end?
Read the activation event, duration, registration or notice requirements and the treatment of replacement or transferred products in the accepted document.
4. What is covered and how is it measured?
Separate product defects from performance wording. Record test conditions, baseline, tolerances, measurement method and who may perform or verify the test.
5. What exclusions and buyer duties apply?
Review installation, storage, transport, operation, maintenance, environment, modification, notice, access and evidence duties without assuming a universal exclusion list.
6. What remedy, cost and process are written?
Check possible remedies, decision authority, return or site access, labour, freight, customs, removal, reinstallation, limitation, governing law and dispute process.
Five RFQ details identify the commercial context
These details identify the product and destination before the applicable written terms are selected and reviewed.
- 01
Buyer type
Distributor, installer, agent, EPC, integrator or project buyer
- 02
Country
Import market and final installation or resale market
- 03
Product
Exact module, cell, small module or selected system component
- 04
Quantity
Pieces, container count, MW or repeat purchasing forecast
- 05
Destination port
Named port or delivery place for the commercial review
Evidence for an existing issue
Prepare relevant records without assuming every item is mandatory or that submission proves coverage. The accepted warranty version controls the review.
- Accepted PI, invoice, warranty version and model annex
- Model, serial numbers and affected quantity
- Installation, commissioning and inspection records
- Issue discovery date and event timeline
- Clear photos and location references
- Measurements, method, conditions and equipment records
- Relevant transport, storage, operation and maintenance records
Official technical and field sources
Reviewed 15 August 2026. These sources support technical evidence planning; none defines a JUSTSOLAR order warranty or proves a claim outcome.
IEC 61215-2:2021Official design-qualification test procedures for terrestrial PV modules; this is technical evidence, not an order-specific warranty promise.IEC 62446-1:2016Official requirements for grid-connected PV system documentation, commissioning tests and inspection records.IEA PVPS: Photovoltaic Failure Fact Sheets 2025Field-oriented descriptions of important PV failures, risks and possible investigation or prevention approaches.IEA PVPS: O&M guidelines for different climatesOfficial guidance on climate stressors, monitoring, inspection and maintenance considerations for PV plants.
Solar warranty questions
Does an IEC test certificate define the warranty for my order?
No. A test or certificate can support technical qualification for its stated scope, but the accepted order documents define the issuer, covered product, duration, exclusions, evidence duties and possible remedies.
Does one warranty period apply to every JUSTSOLAR product?
No. Terms can vary by product, model, construction, legal manufacturer, seller, production site, order date and referenced warranty version.
What should a buyer verify before accepting warranty wording?
Match the obligated party, model and serial scope, activation, coverage, performance method, exclusions, notice, evidence, transfer, remedy, logistics, law and dispute terms to the exact order.
What evidence can make an existing issue reviewable?
Provide the order documents, accepted warranty version, model, serial numbers, quantity, discovery timeline and relevant visual, test, installation, handling and maintenance records. The applicable document controls the final evidence requirements.
Does this page guarantee claim acceptance, timing or compensation?
No. It is a preparation guide. Frank or the Director confirms order-specific warranty wording, and any existing issue is reviewed under the accepted documents and evidence without a public outcome, timing, replacement, credit, freight or compensation promise.
Request order-specific warranty review
Send buyer type, country, product, quantity and destination port. Frank or the Director reviews the applicable wording before any warranty, price, payment, availability, delivery, formal offer or PI is accepted.
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