U-Line 1000/2000 Series Wine Cooler Code E1: Thermistor 1 Circuit Open

What E1 means

E1 on a U-Line 1000 Series or 2000 Series wine cooler tells you Thermistor 1 has an open circuit. The first temperature sensor is not completing its circuit, so the control cannot read that zone. You see E1 on the display. This is a temperature-sensing reading, and it is separate from a door code. The shorted version of the same sensor is E5.

Common causes of E1

Thermistor 1 has opened
The sensor lead is broken or pulled loose
The sensor connector is corroded or loose

✓ One safe check you can try

1. Unplug the cooler for one minute, then plug it in again. 2. Read the cabinet temperature on a separate thermometer. 3. Look for spills near the back of the cabinet. 4. Do not remove any panel. 5. Call us if E1 returns.

! Why to stop there

Sensor circuits are tested with instruments, not by eye
We separate the sensor from the wiring before we replace anything
You get a written price first, and the repair carries a 30-day warranty

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 Wine Refrigerator codes

E6 (Class Series)U-Line Class Series Code E6 (UHWC524, 2224DWR): Thermistor 2 Short E7U-Line UHWC524 Code E7: Thermistor 3 Shorted Entry E9 (Class Series)U-Line 5 Class Wine Cooler Code E9: Door 2 (Lower) Open E6U-Line 1000/2000 Series Wine Cooler Code E6: Sensor 2 Reading Shorted Door Alert SymbolU-Line Wine Cooler Door Alert Symbol: Door Left Open Over 5 Minutes drU-Line Wine Cooler Code dr: Door Open More Than 5 Minutes E0U-Line 5 Class Wine Cooler Code E0: Door 1 (Upper) Open E1 (Class Series)U-Line 5 Class Code E1: Thermistor 1 Open in the Error Log

E1E1 questions

Which sensor is E1 pointing at?

The first temperature sensor does not complete its circuit, which makes Thermistor 1 open, and the control cannot read that zone.

Does E5 relate to E1?

They involve the same sensor. E1 is the open reading, and E5 reports Thermistor 1 shorted. The code tells us which kind of circuit problem the control sees.

Can I keep using the cooler with E1?

Watch the temperature with a thermometer. If it holds steady you have time to book. If bottles warm, move them and call us.