U-Line Bar Refrigerator Error Code E8: Thermistor 4 Shorted

What does U-Line error code E8 mean?

U-Line cabinets use thermistors to read temperatures at different points. On the larger models there are four. When the control reads thermistor 4 as shorted, it logs E8 in memory. As with the other sensor errors, only door errors appear on the display, so a technician sees E8 in service mode. A shorted thermistor gives a reading the control cannot use, usually an impossible temperature, so the cabinet may over- or under-cool in the zone that sensor serves. Models with fewer sensors do not have a fourth thermistor, so the code does not apply to them. The manual's action is to check the thermistor status in service mode and replace the thermistor if the error repeats, which avoids replacing a good part after a one-off event. If the error does repeat, the technician usually looks at the lead path before the sensor itself, since a lead crushed by a door hinge, a liner clip or a shelf support is a common reason for a short on a cabinet this size. Water that has found its way to the connector produces the same reading, which is why a dry connector and a clean routing of the lead matter as much as the new part.

Affected models and control systems

U-Line U-1224BEVS-00A and U-1224DWRS-00A, the four-thermistor models.

Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.

What you may notice

• No visible message, with E8 only in the service log
• Cabinet or one zone running warmer or colder than set
• Compressor running longer than normal

Possible causes

Likely causes — what usually sits behind error code E8 on this control. A technician confirms which one it is before any part is replaced.

• Thermistor 4 circuit shorted
• Thermistor lead pinched or crushed
• Water in the thermistor connector
• Insulation worn where the lead passes through the cabinet

Safe checks before calling for service

How a technician diagnoses error code E8

1. Open service mode and read the thermistor status.
2. Confirm thermistor 4 reads shorted.
3. Inspect its lead and connector.
4. Measure its resistance against the maker's values.
5. Replace the thermistor if the error repeats.

How error code E8 differs from similar codes

E8 is the shorted counterpart of E4; models with fewer than four thermistors never show it.

Technical reference

Document

U-Line USER GUIDE & SERVICE MANUAL, Model: U-1224BEVS-00A

Maker documentation

U-Line owner support

Edition

Publication Number 30379, 3/2024 Rev. Q

Models / control

U-1224BEVS-00A, U-1224DWRS-00A (four-thermistor models)

Section

Troubleshooting, Error codes

Checked

October 2026

We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.