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Error code · Wine Refrigerator

U-Line UHWC524 Code E3: Thermistor 3 Open Entry

For the U-Line 5 Class wine cooler UHWC524, the error log carries E3 as the open reading of Thermistor 3. The third temperature sensor does not complete its circuit, so the control cannot read it. Of…

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Code
E3 (Class Series)
Appliance
Wine Refrigerator
Brand
U-Line
Warranty
30-day workmanship

What E3 (Class Series) means

For the U-Line 5 Class wine cooler UHWC524, the error log carries E3 as the open reading of Thermistor 3. The third temperature sensor does not complete its circuit, so the control cannot read it. Of the sensor codes on this platform, E3 is the open reading for the third sensor.

Common causes of E3 (Class Series)

  • Thermistor 3 has an open circuit
  • The sensor wiring is damaged
  • The connector is loose
✓ One safe check you can try

1. Stop the cooler for one minute, then restart it. 2. Put a thermometer inside and watch the number. 3. Keep the area behind the cooler dry. 4. Do not open the cabinet. 5. Call us if E3 shows again.

! Why to stop there
  • An open circuit is located by measuring, not by looking
  • We test the sensor and its wiring before replacing either
  • Our price comes in writing first, with 30 days on the work
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

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 E6 (Class Series)U-Line Class Series Code E6 (UHWC524, 2224DWR): Thermistor 2 Short E7U-Line UHWC524 Code E7: Thermistor 3 Shorted Entry 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 E1U-Line 1000/2000 Series Wine Cooler Code E1: Thermistor 1 Circuit Open
E3 (Class Series)E3 (Class Series) questions
How does the UHWC524 treat E3?

The 5 Class UHWC524 lists E3 in its error log for an open Thermistor 3.

Is E3 a door message?

No. The doors report as E0 for the upper and E9 for the lower. E3 is a sensor reading.

What does E7 mean next to E3?

E7 is Thermistor 3 shorted. E3 is the open version of the same sensor.

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Still seeing E3 (Class Series)?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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