Charger starts charging but stops randomly after a few minutes; no clear error code is shown, or only a brief fault indication.

Safety first: If you notice burning smells or very hot components, stop using the charger and turn off power immediately.

• Monitor temperature: During a charge, periodically feel (carefully) the cable and enclosure. They should be warm at most, not too hot to touch. Excessive heat suggests loose connections or undersized wiring.
• Check input and output terminals (power OFF): Open the unit and tighten all terminal screws on the input block and contactor. Look for discoloration or melted insulation and replace any damaged wiring or terminal blocks.
• Try lower current: Reduce the maximum current in the app and see if the session becomes stable. If so, the issue may be supply-related or thermal.
• Inspect cable and connector: Look for damage or signs of overheating on the J1772 handle and cable. Replace the J1772 charge cable assembly if needed.
• Utility voltage check: Have a qualified person monitor supply voltage during charging. Large dips or spikes can cause the charger to stop.