Why solar warranty claims get denied, and the evidence that would have saved them

Solar warranty claims are rarely refused because the fault is not covered. They are refused because the record cannot carry the claim: a serial nobody can read, no proof of when the unit went in, a fault with no reported date, a failed part already sitting in the van. Five pieces of evidence prevent almost all of it, and all five have to be captured on the day.

Denials come in three shapes

Before the evidence list, it helps to name what you are actually up against, because the three shapes need different fixes.

The claim that never becomes a claim. The serial does not match a unit the manufacturer made, so nothing opens. This reads as your mistake rather than their refusal, which is why it is the worst one.

The claim that falls outside the term. The fault is real and covered, but the term started earlier than anyone assumed, or a condition that keeps the long term alive was never true.

The claim that stalls. Nothing is refused, nothing progresses, and eventually somebody in your office decides chasing it costs more than eating it. That is a denial with extra steps.

The evidence below addresses all three.

The five things a claim needs

This is the list Claim Timer enforces on every claim, in the order a claim gets built. Install record first because it comes free off the job. Invoice last because it cannot exist until the work is done.

Five lines. Roughly a minute per unit on the day, and close to impossible to reconstruct a year later. The claim pack checklist is the same list in printable form.

Install record

Almost every warranty term is measured from a date: installation, delivery, or a fixed period after manufacture. Without a recorded install date there is nothing to measure from, and the manufacturer gets to pick.

That sentence is the whole argument, and the catalogue makes it concrete. Jinko's term starts at delivery or 180 days after manufacture, whichever is earlier. Trina's starts at installation or three months after delivery, whichever comes first. SolarEdge starts at the earlier of installation or four months from shipment. FranklinWH starts at installation or 12 months after manufacture, whichever is earlier, so a unit that sat in a warehouse burns cover before it is switched on. Sol-Ark runs from initial purchase or receipt by the end user, whichever is later.

Notice how many of those are "whichever is earlier". When two dates are candidates and you can only prove one, you will be given the one that helps you less.

BYD is the sharpest version. There is no registration to complete at all, but the delivery note moves the start of the ten years from six months after production to delivery plus 30 days. That single document is worth months of cover, and it is either in the job file or it is gone.

Serial number photo

A serial typed from memory and a serial photographed off the nameplate are not the same evidence. A transposed character is a unit that was never sold, and the claim comes back as unrecognised rather than denied, which is worse because it looks like your mistake.

The failure modes are boring and constant. A zero read as an O. An 8 read as a B. A digit dropped off the end. A model number copied instead of a serial, because on many nameplates they sit next to each other and look alike. All of it happens on a wall in poor light, into a phone, one handed.

The fix is not to be more careful. It is to photograph the plate, so the string can always be checked against the picture eighteen months later when nobody remembers the job.

Some brands want more than one serial. BYD claims want product, module and inverter serials. Getting a module serial afterwards means opening the enclosure again, which is a truck roll to fix a paperwork problem. Work out what that costs with the truck roll calculator.

Fault description

When the fault was first reported matters as much as what it is. A fault reported inside the term and fixed outside it is still covered. A fault with no reported date is whatever the manufacturer decides it is.

So the fault note has three parts: what broke, when it was first reported, and what the homeowner sees. The middle one is the one people skip and the one that carries weight.

Some documents also limit how long after a failure you can raise a claim, so a fault that sat in someone's phone for six weeks before anyone logged it is a real exposure. Log the report date when the homeowner calls, not when the tech attends.

Error codes belong here too. An inverter that displays a code is telling you the manufacturer's own language for the fault, and quoting it moves a claim faster than a paragraph of description.

Fault photos

The failed part in place, before it comes off the roof. Once it is in the van it is a box, and a box proves nothing about where it was mounted or what it was doing.

This is the evidence most often lost, because the tech is on a roof, the part is dead, and the obvious next action is to take it off. Take the photo first. It costs ten seconds and it is unrecoverable afterwards.

Parts and labour invoice

The number you are asking them to pay. Brands that reimburse labour reimburse against an invoice, and brands that do not still want the parts cost itemised.

Worth knowing which brands actually pay something. In the United States, Enphase reimburses $200 per truck roll plus $25 per replaced microinverter. REC's Alpha Pure-R line carries 240 months of labour cover. Fronius Primo GEN24 Plus, GoodWe ET Series and Sungrow SH RT each carry 12 months. Most other lines carry none. The full picture is in which brands pay for labour.

If the brand pays labour and you did not invoice it properly, you have handed back money that was on the table.

The denial that has nothing to do with evidence

There is a fourth kind, and no photo prevents it: the term you are claiming under was never the term you had.

GoodWe's ten year inverter cover holds only while the unit is connected to the SEMS portal with generation data uploading, and where a Lynx battery is fitted, only while both serials are registered. Otherwise it is five years, and nobody tells you. Tesla's Powerwall term needs the unit to stay online, and if the connection drops and is not restored within 45 days of Tesla's written request, cover ends at 48 months. REC's ProTrust exists only if a certified installer registered the installation. Silfab's product cover is 12 years unless the install was registered through Silfab's portal within 180 days of purchase, in which case it is 25.

Each of those turns a claim in year seven from a formality into a refusal, and the cause was set years earlier by something nobody recorded. That is the argument in warranties are conditions, not deadlines.

Making it stick on a three-truck shop

Relying on people to remember does not work, because the cost of forgetting arrives eighteen months later and lands on someone who was not there. By the time a denied claim comes back, the tech who did the install may not work for you.

Three things make it hold:

• Capture is part of the job, not paperwork after it. Photograph the plate before you leave site. The five lines above happen at the unit, not at a desk.
• The record is per piece of equipment, not per job. A normal solar job has three units with three sets of terms and three sets of conditions. One job folder with one serial in it is not a record.
• Confirmations get stored, not filed mentally. A registration confirmation number kept against the equipment is evidence. The same number in an inbox is not.

That is what Claim Timer does: it holds the record for each piece of equipment, tracks the conditions each brand attaches, and builds the claim pack from what was captured. It does not file with the manufacturer for you, and cost reporting across a quarter is not built yet.

If a part has already failed, start with the claim checklist and check the term with the warranty deadline calculator. Then read how to build a claim pack a manufacturer accepts first time.