Your next order is already described in your returns file — if the file is coded well enough to read. Warranty returns, recorded per model with the fault class, the install environment and the handling finding, tell a dealer which lines to deepen, which to question and which to drop. Uncoded, the same pile is only freight cost. No published benchmark exists to compare against; the data earns its keep internally, your own models against your own previous orders.
Key Takeaways
- Code every warranty return at intake: model and variant, fault class, environment, handling, shipment, resolution.
- Read the file three ways — model mix, install environment, handling — because each read changes a different decision.
- No benchmark substitutes: your returns per model, against your own previous orders, are the measure.
- Bring the pattern to the reorder: quantities, written questions for the maker, and the agreement points to re-settle.

The Dataset: Fields and Coding Rules
| Field | Coding rule | The order decision it feeds |
|---|---|---|
| Model and variant | As invoiced — connector and variant exact, never the family name | Depth per variant at reorder |
| Fault class | From the inspection finding: hardware, firmware-routed, no fault found, or damage — not the customer’s first words | Which conversation with the maker opens before you reorder |
| Install environment | One fixed list — home, workplace, public; indoor or outdoor — chosen at intake | Whether a model’s stated specification fits where your buyers install it |
| Handling finding | Packaging, transport and storage damage recorded apart from product faults | Warehouse and freight changes — not a product claim |
| Shipment of origin | The order or shipment the unit arrived on | Whether a cluster is one shipment’s story or a model’s pattern |
| Resolution and days open | From the claim record, closed when the case closes | The service terms your next agreement must settle in writing |
Two rules protect the whole file. Code at intake, from the fixed lists — a code chosen months later is a guess. And keep the customer’s stated reason and the inspection finding in separate fields: where they differ is where the fix lives.
Three Reads of the Same File
The model-mix read. Returns concentrated on one variant, against clean siblings, is a ranging fact: deepen the clean lines, question or drop the returning one. The environment read. Faults clustering in one setting — outdoor public sites, say, against quiet home installs — ask whether the model’s stated sealing and duty match where your buyers actually put it; connector and supply are stated per model, so the check is against the listing, not a hope. The handling read. Damage found before installation is not a product verdict at all: it prices your packaging, your carrier and your warehouse, and it belongs in the logistics conversation, not the warranty one. Sell-through evidence — the measure our distributor stocking coverage ranks lines by — tells you what sold; this file tells you what came back. The pair is the ranging evidence.

From Data to the Order Conversation
Bring the file to the reorder in three forms. First, quantities: the per-variant return picture beside the per-variant sales picture, same period. Second, questions for the maker, in writing, with the pattern attached — serials, fault classes, environments — because a factory can act on a pattern it can see; whether and how a maker feeds returns into production is their process to describe, never something to assume. Third, the agreement points the data says to re-settle: claim route, spares holding, and the service terms the days-open column exposed. On the EVDANCE side, the stated facts a dealer codes against are on each listing — the EV-ACS4005T is a NACS portable (9.6 kW, 16/24/32/40 A, IP66), the EV-AC04001U its J1772 counterpart (40 A, 9.6 kW, IP66, 25 ft) — and every unit sits under the 3-year standard warranty. Raise your market’s returns picture through the reseller and distributor programme or contact us.
Frequently Asked Questions
How much returns data do we need before it changes an order?
There is no threshold to reach. Consistent fields matter more than volume: a small file coded the same way every time shows its clusters within a period or two, while a large uncoded pile shows nothing at any size.
Should we send our returns data to the manufacturer?
Yes — it is the evidence behind warranty and ranging conversations. Send patterns, not people: serials, models, fault classes and environments are what a maker can act on; your customers’ personal details are not part of the dataset.
Most of our returns are “no fault found”. Is the product at fault?
That code usually marks a pre-sale or setup gap — the wrong connector ordered, a setting unexplained — rather than a defect. The order lesson sits in listing accuracy and first-week support material, not in dropping the model.
Related Reading
- EV Charger Spare Parts and RMA Process for Distributors
- Common EV Charger Faults and How Suppliers Should Handle Them
- How Distributors Can Build a Profitable EV Charger Product Line
- EV Charger Warranty and After-Sales Terms: A Distributor’s Checklist

