U-Line 1000 and 2000 Series E6: Thermistor 2 Shorted
E6 on beverage centers in the U-Line 1000 and 2000 Series means Thermistor 2, the second temperature sensor, reads shorted. The control gets a signal that is not a real temperature.
What does U-Line beverage center code E6 mean?
Thermistor 2 reading shorted is what E6 reports across the 1000 Series 1215BEV and the 2000 Series 2224DWR. That second temperature sensor hands the control a signal it treats as a direct short, and a short is not a real temperature. The control manages without the sensor while E6 stays on the display. A sensor that read open would show E2 instead, so the two codes describe one sensor in opposite states.
E6 at a glance
- Code
- E6
- Appliance
- U-Line beverage center
- Applies to
- U-Line beverage centers, 1000 and 2000 Series
- Type
- Needs attention soon
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- A short has formed in Thermistor 2
What you may notice with E6
- E6 stays lit on the display
- Cabinet temperature drifts away from the setting
- Dampness or spills show near the rear of the unit
- The cabinet keeps running through all of it
How the beverage center detects E6
The control in a U-Line beverage center converts each thermistor's resistance into a temperature. Thermistors are small sensors whose resistance falls when the air warms and rises when it cools, and the control watches the second one through an input of its own on the board. The values from all sensors together tell the control when cooling should start and stop.
When Thermistor 2 or its wiring shorts, the resistance drops toward zero. That would mean a temperature far outside anything the cabinet could reach, so the control concludes the sensor is shorted and displays E6. A pinched wire, worn insulation or moisture where the sensor plugs in can each cause it. While E6 is showing, the control works around the sensor, so the temperature it holds rests on the remaining readings rather than the full set.
Likely causes of E6
- A short has formed in Thermistor 2
- A squeezed wire or worn insulation on the sensor lead
- Corrosion or damp at the sensor's plug
Can you keep using the beverage center with E6?
For now, you can keep the cabinet running, since E6 is not a safety hazard. The risk is to the drinks: the control works without a trustworthy second sensor, so the temperature may creep up or run colder than set. Put a thermometer inside and read it a few times a day. If it drifts, if frost forms, or if the cabinet seems to run nonstop, switch its breaker off and ask for a repair.
What you can safely check
- Make the cabinet safe first by turning it off and removing power at the outlet or breaker.
- After one minute, switch it back on.
- Wipe away spills and condensation at the rear.
- Read the inside temperature on a thermometer.
- Do not open covers.
- If E6 returns, contact us.
What our technician does for E6
- Measure Thermistor 2 to confirm a short
- Check the sensor wire for pinching or worn insulation
- Inspect the plug-in connection for corrosion or moisture
How to keep E6 from coming back
- Dry the rear of the cabinet whenever condensation or spills collect there.
- Keep the cabinet from pressing on its wiring as you slide it into or out of the opening.
- Leave space around the unit so moisture does not sit against the sensor connector.
Technical reference
- Code
- E6
- Appliance
- U-Line beverage center
- Control family
- U-Line beverage centers, 1000 and 2000 Series
- Maker documentation
- U-Line owner manuals and support
- Checked
- November 2026
Code meanings come from the maker’s documentation and our own repair work; we do not reprint the maker’s document. Confirm the full model number before acting on a code. We are an independent repair company, not affiliated with U-Line Corporation.
Related U-Line beverage center error codes
E6 questions
What does E6 stand for?
It tells you Thermistor 2 is shorted. E2 reports the same sensor open. Between the two, a technician learns which way the circuit failed.
Did other guides give E6 another meaning?
Some did, but for the 1215BEV and the 2224DWR the meaning is a shorted Thermistor 2. We follow the table written for your series.
Must I stop using the cabinet?
Running it for now is acceptable, with a thermometer inside as your guide. Should the numbers drift or frost appear, power the cabinet down at the breaker and arrange a repair.
Are E6 and E2 two separate problems?
They involve one sensor, Thermistor 2. E2 means the circuit is open, while E6 means it is shorted. The control posts one or the other, depending on what it detects.
Will E6 disappear on its own?
If dampness caused a temporary short and it dries out, the code may clear. A damaged wire or failed sensor keeps E6 coming back, and that needs testing to locate.
Need help with E6?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.