U-Line Echelon 2000 Code E1: Thermistor 1 open

What E1 means

On U-Line Echelon 2000 refrigerators with the 2010 electronic control, such as the 2175RF or the 2275ZWC, code E1 means thermistor 1 is open. The control sees a broken circuit where the main temperature sensor should report a reading. You see E1 on the display, and the cabinet is no longer regulated from a good sensor signal. The code does not appear on the CLR2160.

Common causes of E1

A thermistor 1 that has failed open
A loose or broken sensor plug or lead
An open circuit between the sensor and the control

✓ One safe check you can try

1. Write down the code exactly as shown. 2. Unplug the unit for one minute, then plug it back in and watch the display. 3. Make sure nothing is pressed against the cabinet or the cord. 4. If E1 returns, stop troubleshooting and call us. Do not open any panels or probe wiring yourself.

! Why to stop there

The sensor leads sit inside the cabinet and need a proper meter test
Swapping a sensor on a guess can leave the real open circuit in place
A wrong sensor reading lets food warm up unnoticed

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.

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Other Refrigerator & Drawers codes

SPU-Line Echelon 2000 Display "SP": normal set-point readout E5U-Line Echelon 2000 Code E5: Thermistor 1 reading 10 F above set point E5U-Line Origins 1000 Code E5: Temperature 10 degrees above set point for 6 hours E6U-Line Echelon 2000 Code E6: Thermistor 1 reading 10 F below set point 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

E1E1 questions

Does E1 mean the refrigerator has stopped cooling?

E1 reports an open reading on thermistor 1. Without a good sensor signal the control cannot hold temperature accurately, so the cabinet reading is not trustworthy. Check food temperature with a separate thermometer until the repair is done.

Will unplugging clear E1?

A one-minute power-off clears a one-time glitch, but an open sensor circuit brings E1 right back. If it returns after restart, the circuit itself needs testing.

How do you repair an E1 on a 2175RF?

We test the thermistor and its plug, confirm the open circuit, replace the part that is open, and verify the display returns to the set point. You get the price in writing first, and the work carries a 30-day warranty.