U-Line Origins 1000 Code E1: Thermistor open

What E1 means

On U-Line Origins 1000 refrigerators, such as the 1115R, the 1175R and the 1175BEV, code E1 means the thermistor is open. The control sees a broken temperature sensor circuit, so it has no good reading of the cabinet. E1 shows on the display. The same E1 label on the Echelon 2000 control names thermistor 1 specifically, while on Origins there is a single thermistor.

Common causes of E1

A thermistor that has failed open
A loose or broken sensor plug
A damaged lead between the sensor and the control

✓ One safe check you can try

1. Note the code and the model. 2. Unplug the unit for one minute and plug it back in. 3. Keep the door closed and check the gasket. 4. If E1 returns, call us and check food temperature in the meantime.

! Why to stop there

The sensor sits inside the cabinet
Confirming an open circuit takes a meter
A guess can replace the wrong part

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

→Same appliance

Other Refrigerator & Drawers codes

E6U-Line Origins 1000 Code E6: Temperature 10 degrees below set point for 6 hours E7U-Line Echelon 2000 Code E7: Thermistor 2 open or shorted E8U-Line Echelon 2000 Code E8: Thermistor 3 open or shorted E9U-Line Echelon 2000 Code E9: Thermistor 4 (condenser) open or shorted ER (alternating with SP)U-Line Echelon 2000 Message "ER alternating with SP": error summary display Flashing degree symbol / snaking charactersU-Line Echelon 2000 Display: flashing degree symbol means showroom mode SPU-Line Echelon 2000 Display "SP": normal set-point readout E5U-Line Echelon 2000 Code E5: Thermistor 1 reading 10 F above set point

E1E1 questions

What does E1 mean on an Origins 1000?

E1 means the cabinet thermistor is open. The control cannot read the cabinet temperature from a broken circuit, so the display shows the code. That sensor is the single thermistor on Origins models.

Will a restart fix E1?

A restart clears a one-time glitch. An open thermistor circuit brings E1 back, and then the sensor or plug needs a test. Keep the door closed while you wait.

Is the food safe?

Check with a separate thermometer. Above 41 F, move perishables elsewhere. We repair the sensor circuit with a written price first and a 30-day warranty.