Charger shows E05 and stops charging; may occur after a few minutes of operation, especially in hot environments.

Safety first: Allow the charger to cool before touching the housing. Turn off power at the breaker if you plan to open the unit.

• 1. Improve ventilation:
  • Ensure the Megear charger is not covered by objects or installed inside a closed cabinet.
  • Clear at least 4–6 inches of space around all sides and vents.
  • Move the vehicle cable so it does not block airflow.
• 2. Check ambient conditions:
  • If the charger is in direct sun or a very hot garage, try charging during cooler hours.
  • Verify that the installation location is within the temperature range specified in the Megear manual.
• 3. Inspect internal fan (if present):
  • Disconnect power and open the housing.
  • Locate the internal cooling fan on the heat sink or enclosure.
  • Spin the fan blades gently by hand; they should move freely.
  • Clean dust buildup with compressed air. If the fan is seized or noisy, replace it.
• 4. Check temperature sensor connection:
  • Identify the thermistor or temperature sensor attached to the heat sink or power components.
  • Ensure its connector to the main control board is fully seated.
  • If the sensor wiring is damaged or detached, replace the sensor harness.

If E05 recurs quickly even in cool conditions with clear ventilation, the temperature sensing circuit or power module may be failing and should be evaluated by a professional.