U-Line Beverage Center Code E1 Means Thermistor 1 Is Open

What E1 means

U-Line Class Series, 1000 Series and 2000 Series beverage centers display E1 when Thermistor 1 reads open. Thermistor 1 is one of the temperature sensors the control uses to judge compartment temperature, and an open reading means the control has lost the signal from it. The cabinet stays powered, but its temperature control now works with one reading missing. The code stays on the display until the reading returns.

Common causes of E1

The Thermistor 1 sensor has failed open
The sensor wire has a break or a loose connection
The sensor plug at the control is not seated

✓ One safe check you can try

1. Switch the unit off at the control, wait one minute, then turn it back on. 2. Make sure nothing is stacked against the back wall or the vents. 3. Note whether E1 returns right away or hours later. 4. Do not pull on wires or open any panel. 5. If E1 returns, call us.

! Why to stop there

A sensor reading is only trustworthy once the sensor itself has been tested
Guessing at the sensor or the control means paying for a part when the sensor is fine
We check the circuit first and tell you the price before any work starts

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

E5U-Line 1000 and 2000 Series Code E5, Sensor 1 Shorted E5 (Class Series)U-Line Class Series Code E5: First Sensor Shorted E6U-Line 1000 and 2000 Series Code E6 Means a Shorted Thermistor 2 E7U-Line 1000 Series Code E7 Reports a Shorted Thermistor 3 E9 (Class Series)U-Line Class Series Code E9: Door 2 (Lower) Open ERU-Line Beverage Center Code ER: General Error, Record Code and Call 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

E1E1 questions

What does E1 mean on a U-Line beverage center?

E1 means Thermistor 1 is reading open. The control has lost the signal from that temperature sensor. It applies to Class, 1000 and 2000 Series beverage centers.

How is E1 different from E5?

E1 is Thermistor 1 open, meaning no signal comes back. E5 is Thermistor 1 shorted, meaning the circuit reads as a direct connection. Both involve the same sensor but describe opposite conditions.

Are my drinks safe while E1 is showing?

The cabinet normally keeps cooling, though temperature control is less exact. Check the temperature with a separate thermometer for a day, and call us if the readings drift from the setting.