Direct answer
Collect identity and session evidence before suggesting a cause: vehicle model and software, charger/network and connector, adapter model/revision and direction, time and location, error messages, indicator behavior, connection sequence, photos of external condition and whether the same equipment works without the adapter. Stop if there is damage, heat, moisture or abnormal odor; do not open the adapter.
Who should use this guide?
This guide is for a ev adapter after-sales team making a fault intake decision. Keep every conclusion tied to a named model, revision, equipment pair, market and check date.
What should be checked before a decision?
| Check | What to record | Decision |
|---|---|---|
| Who/when | Case owner, date, time and location | Create one traceable case |
| Equipment | Vehicle, charger and adapter models/revisions | Confirm the intended path |
| Session | Sequence, account/network state and errors | Preserve screenshots and codes |
| Condition | External damage, moisture, debris, heat or odor | Stop use if abnormal |
| Comparison | Known-good controlled substitution | Isolate only when safe and permitted |
How should the buyer verify it?
- Stop and disconnect according to equipment instructions if any unsafe condition exists.
- Record every model, revision and software version before moving equipment.
- Capture exact on-screen messages and indicator patterns.
- Photograph labels and external connector condition without touching contacts.
- Perform only supplier-approved comparisons with known-good equipment.
- Send the complete case file to the responsible supplier.
What evidence should the supplier provide?
Request the model and revision, direction diagram, AC/DC role, ratings and instructions, supported-equipment statement with a check date, relevant market documents, change history and a sample-validation record. Evidence for a similar SKU is not evidence for this one.
What mistakes create avoidable risk?
- Starting with “the adapter is faulty” before identifying the chain.
- Resetting or moving equipment before recording the original error.
- Probing contacts or dismantling a high-voltage product.
Compatibility and safety boundary
Compatibility is a relationship among the charger, cable or adapter, vehicle, software or network and target market. Stop use for damage, abnormal heat or odor, moisture at an interface, loose locking or repeated errors. Do not open or repair high-voltage charging equipment.
Buyer checklist
- Full equipment path and connector direction recorded
- AC or DC role and target market confirmed
- Exact model and revision tied to evidence
- Vehicle, charger and software/network scope dated
- Representative validation retained
- Exceptions and escalation owner documented
FAQ
Should support ask the customer to clean or repair contacts?
Do not instruct invasive cleaning or repair. Follow model instructions and escalate damaged or contaminated parts.
What is the most useful comparison?
A controlled change of one component at a time, only when the vehicle, charger and supplier instructions permit it.
Related product and support
Review EV adapter products, the sample validation plan, and the adapter RFQ checklist.
Request a model-level review
Send the complete equipment path, target market, model/revision and intended quantity for a scoped review.