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🟡 PARTIAL: BYD Atto 3 slow AC charging fault — onboard charger issue — BYD Atto 3 2022 | MyCarFault
🟡 PARTIALLY SOLVED 0% Partially solved · Some fixes work, not all

🟡 BYD Atto 3 slow AC charging fault — onboard charger issue

BYD Atto 3 2022
On This Page: 🔧 All Repairs ⚠️ Avoid These 🔗 Similar Faults
⚡ Quick Summary
Severity Level
Low
Safe to Drive?
✅ Safe to Drive
Safety Impact
No direct safety impact reported by owners
Urgency Level
🟢 Low Priority

The BYD Atto 3 charges at significantly below the rated 7kW AC charging speed. The onboard charger module can develop a fault causing it to operate at 3.3kW or lower. A software update via the BYD dealer resolves the charging speed issue in most cases. If the software update does not restore full charging speed, the onboard charger module itself requires replacement. Always use a Type 2 cable from a reputable manufacturer for reliable AC charging.

Repair / Solution

No confirmed fixes yet. Share yours below.

⚠️ Wrong Diagnosis?

No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this BYD Atto 3 2022 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.

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