U-Line Class Series Code E2: Second Sensor Open

What E2 (Class Series) means

On the U-Line Class Series UHWC524, along with 1000 Series and 2000 Series beverage centers, the error log lists E2 as Thermistor 2 open. The control sees no signal from the second temperature sensor and posts the code. The cabinet is still powered, but the display carries E2 until the sensor reading comes back. The same E2 meaning is listed for the 1000 Series 1215BEV and the 2000 Series 2224DWR.

Common causes of E2 (Class Series)

Thermistor 2 has an open circuit
A sensor wire or connector has come loose
The control board is not reading the sensor input

✓ One safe check you can try

1. Power the unit down for one minute and restart it. 2. Clear space behind and beside the cabinet. 3. Compare the display temperature with a thermometer. 4. Avoid touching wiring or panels. 5. If E2 comes back, call us.

! Why to stop there

The same E2 can come from a sensor, a wire or the control, and only testing tells them apart
Opening the cabinet yourself risks damage to the wiring
Our visit includes a written price before work and a 30-day workmanship 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 Beverage Center codes

Door Alert SymbolU-Line Beverage Center Message "Door Alert Symbol": Door Left Open Past Five Minutes drU-Line Beverage Center Code dr: Door Open More Than 5 Minutes E0U-Line Beverage Center Code E0: Door 1 (Upper) Open E1U-Line Beverage Center Code E1 Means Thermistor 1 Is Open E2U-Line 1000 and 2000 Series Code E2 Reads Thermistor 2 as Open E3U-Line Beverage Center Code E3, Sensor 3 Circuit Open E4U-Line Beverage Center Code E4 Reports an Open Thermistor 4 E5U-Line 1000 and 2000 Series Code E5, Sensor 1 Shorted

E2 (Class Series)E2 (Class Series) questions

Does E2 appear on the UHWC524?

Yes. On the Class Series UHWC524 the error log shows E2 as Thermistor 2 open, and the 1000 and 2000 Series follow the same table.

What clears E2?

A restart clears a one-time glitch. If the sensor circuit is truly open, E2 returns after a short time and the sensor path has to be tested.

Will an E2 code spoil what is inside?

That depends on how long the control runs without the reading. Place a thermometer inside, watch it for a day, and call us if it drifts from the setting.