E3
TaoTronics
Overheat / Dry-Run Protection (Humidifier)
Humidifier shows E3 and stops working
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Base running without water, Failed thermal sensor in base, Blocked air outlet causing heat buildup, Faulty overheat protection circuit
How to Fix / Troubleshooting
Safety: Unplug the humidifier and allow it to cool before handling.
Steps:
- Check water level: Ensure the tank is filled and properly seated. Many TaoTronics humidifiers will trigger overheat protection if the transducer runs dry.
- Clean base: Remove any scale or residue from the base water chamber that might interfere with temperature sensing.
- Inspect thermal sensor: In the base, locate the small NTC temperature sensor or thermal fuse near the transducer. Check for loose wiring or damage.
- Reset and test: After cooling and refilling, plug in and restart. If E3 returns quickly, the thermal sensor or PCB may be faulty.
- Replace sensor or PCB: Replace the base NTC temperature sensor or thermal fuse if open. If the sensor is good, replace the main control PCB.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Base NTC Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements