Ohme charger’s internal fan (if fitted) runs loudly or continuously, even when not charging.

Note: Continuous fan operation is usually safe but may indicate a developing fault.

• 1. Check temperature: Feel the charger casing. If it is only slightly warm, the fan may be running unnecessarily.
• 2. Power reset: Turn off the charger at the isolator for 1 minute, then back on. Observe whether the fan stops after startup.
• 3. Environment: Ensure the charger is not installed in a very hot, enclosed space that would legitimately require constant cooling.
• 4. Technician service: A technician can open the unit, clean dust from the fan and heatsinks, test the temperature sensor, and replace the fan or main PCB if the control circuit is faulty.