E1
TYLZA
Upper Compartment Temperature Sensor (NTC) Failure
Display shows E1 and the temperature reading is inaccurate or dashes appear for one zone.
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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.
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Possible Causes
Open-circuit upper cabinet NTC sensor, Shorted upper cabinet NTC sensor, Damaged sensor wiring harness, Corroded connector at main control board
How to Fix / Troubleshooting
Safety: Disconnect power before accessing internal components.
- Confirm the symptom: Compare the displayed temperature of the upper zone with an accurate thermometer placed inside. If the display is stuck or shows E1, proceed.
- Locate the upper NTC sensor: On most TYLZA dual-zone models, the upper sensor is behind a small plastic cover on the rear interior wall or side wall of the upper compartment.
- Inspect wiring: Remove the interior cover, gently pull out the sensor probe, and check the wiring for cuts, pinches, or corrosion at the connector.
- Test continuity: With a multimeter set to resistance, measure the sensor. A typical NTC will show several kΩ at room temperature. Infinite (open) or near 0 Ω (short) indicates failure.
- Replace sensor: If faulty, install a TYLZA-compatible upper zone NTC sensor, route the wire along the original path, and secure it away from the evaporator fan blades.
- Reconnect and test: Reconnect to the main control board, restore power, and verify that E1 clears and the temperature updates normally.
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Repair Difficulty
Medium
3/5
Required Part
Upper Zone Temperature Sensor (NTC Probe)
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