How to Fix / Troubleshooting

Safety first: Hot surfaces can burn. Allow the unit to cool and turn off power before opening.

Check installation: Ensure the Zencar charger has the recommended clearance on all sides and is not enclosed in a small cabinet without airflow.
Inspect terminals: With power OFF, tighten all input and output power terminals on the main contactor and terminal blocks. Look for discoloration or melted insulation.
Monitor temperature: During a charge, periodically feel the housing. Warm is normal; too hot to touch for more than a few seconds is not. Consider reducing the current setting.
Check contactor: If the area around the main power contactor is significantly hotter than the rest, the contactor may have high-resistance contacts and should be replaced.
Improve environment: Provide shade or ventilation, or relocate the charger if ambient temperatures are consistently above spec.

Charger gets very hot to the touch during normal charging; may stop charging on hot days without showing a code.

Possible Causes