U-Line DWR controller LED 1 flashing: open thermistor

What DWR controller LED 1 flashing means

On first-generation U-Line Echelon dual-zone refrigerator models such as the 2075DWRR, the 2075DWRWC and the CO2075DWR, the DWR controller LED 1 flashing means an open thermistor. When LED 1 is solid, the compartment temperature is displayed, within a range of 34 to 45 F. A flashing LED 1 replaces that normal readout. Both doors and drawers of the unit stay as they were, but the compartment temperature is not reported.

Common causes of DWR controller LED 1 flashing

A thermistor that is open
A loose sensor plug
A damaged sensor lead

✓ One safe check you can try

1. Compare LED 1 to a solid light. 2. Unplug the unit for one minute, then plug it back in. 3. Keep the doors closed. 4. Check the compartment with a separate thermometer. 5. If LED 1 keeps flashing, call us.

! Why to stop there

The thermistor is inside the compartment
An open circuit needs a meter
The wrong part leaves LED 1 flashing

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

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 ER (alternating with SP)U-Line Echelon 2000 Message "ER alternating with SP": error summary display

DWR controller LED 1 flashingDWR controller LED 1 flashing questions

What does LED 1 solid mean?

The controller displays the compartment temperature, in a range of 34 to 45 F. A solid LED 1 is the normal display, and a flash means the thermistor is open.

Can I keep using the unit?

Check the compartment with a separate thermometer. If it drifts above 41 F, move perishables until repair. Door openings add heat while you wait. Call us if it repeats.

What will you do?

We test the thermistor and its plug, replace the open part and confirm LED 1 goes solid. Written price first and a 30-day warranty. Call us if it repeats.