Public charging station fault diagnosis (B2B)
On-site CPO fault triage — AC + DC stations.
Our public charging station fault diagnosis (b2b) package is part of the charging line at ev.care — a flat ₹1,999 for roughly 2 hours of focused workshop time. On-site CPO fault triage — AC + DC stations. The workflow is the same one we use on our own R&D fleet: a stable bay, calibrated tools, and a printed record at the end so you can see exactly what changed. We don't upsell. If the result is "you're fine, come back in a year", that's exactly what we'll write on the report.
What's included
- On-site triage
- OCPP log review
- Power electronics check
- Written fault report
- Quote for repair
Why this matters
Why this isn't an optional service: skipping it risks a slow-charging fault that doubles every overnight stop. A ₹1,999 workshop slot today is the cheapest insurance you can buy against that outcome.
How it works
- 1
We replicate the fault on a controlled charger of known-good output.
- 2
The vehicle's onboard charger and port are tested independently.
- 3
Faulty components — pins, contactors, or the OBC itself — are isolated.
What we typically find
From hundreds of inspections — what makes the report.
- OBC fan running below expected RPM — replaced
- Charge cable connector worn — recommend replacement
- AC charging current limit set lower than the cable supports
- Type-2 port lock mechanism sluggish — cleaned and re-tested
How to prepare
- Charge to ~30% so we have headroom to test up the curve
- Note the charger brand + roughly where the fault appears (start / mid)
- Bring your home charging cable AND any portable EVSE you use
Equipment we use
- Reference AC charger of known-good output
- DC fast-charge simulator (where applicable)
- Type-2 connector test rig
- Multimeter + scope for OBC waveform inspection
Certifications
- IMI Level 3 EV charging systems
- OCM-aligned safe-work practice
Transparent pricing breakdown
No hidden charges. This is exactly what makes up your bill.
Labour & instrumentation 2 hours | ₹1,399 |
Consumables & documentation | ₹600 |
| Total | ₹1,999 |
What customers say
“They replicated my fault on the spot, which was great — no guessing. Replacement OBC fan and I was out within 90 minutes.”
“Charging speed back to normal. Receipt itemised exactly what was done.”
FAQs
Repair included?+
No — quoted separately. This is triage only.
How long?+
2 hours on-site.
Travel fee?+
Free within metro; ₹15/km outside.
Who needs this
CPOs and fleet operators with public/semi-public stations.
Related services
Ready to book public charging station fault diagnosis (b2b)?
Fixed price ₹1,999 — no surprises. Or describe a different problem and we'll match the right service.