E11
Rowenta
Temperature Sensor (NTC) Fault
Heater icon flashes and E11 appears; solution temperature remains low.
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
Open or shorted NTC sensor on heater block, Damaged sensor wiring harness, Poor thermal contact between NTC and heater, Faulty ADC input on control PCB
How to Fix / Troubleshooting
Safety first: Unplug the unit and let it cool before accessing the heater area.
- Locate the NTC sensor: It is usually clipped or screwed onto the heater block or in-line heater tube.
- Inspect wiring: Check the two-wire harness from the NTC to the main PCB for cuts, abrasions, or loose connectors.
- Measure resistance: At room temperature, measure the NTC resistance with a multimeter. A typical value is between 10 kΩ and 100 kΩ depending on design. An open circuit or near-zero resistance indicates failure.
- Check mounting: Ensure the sensor is firmly attached to the heater surface with thermal paste or a clamp as originally installed. Poor contact can cause incorrect readings.
- Replace NTC if faulty: Install a replacement sensor with the same specification. If the sensor tests good but E11 persists, the main control PCB may be misreading the sensor and require replacement.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
Heater NTC Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements