U-Line Echelon 2000 E7: Thermistor 2 Open or Shorted
Thermistor 2 reading as open or shorted is what E7 reports on a U-Line Echelon 2000 refrigerator. The second temperature sensor circuit is broken, and the sensor has to be replaced.
What does U-Line refrigerator & drawers code E7 mean?
Echelon 2000 refrigerators on the 2010 control that carry a second sensor, such as the 2175DWRR and 2275ZWC, show E7 when thermistor 2 reads open or shorted. The control interprets the second temperature sensor circuit as broken or shorted, and the cure is a new sensor. E7 stays on the display until the circuit reads normally again. The 2175RF has no such circuit, so it never shows this code.
E7 at a glance
- Code
- E7
- Appliance
- U-Line refrigerator & drawers
- Applies to
- Echelon 2000 with the 2010 control, second-sensor models
- Type
- Needs attention soon
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- Thermistor 2 with an internal open or short
What you may notice with E7
- E7 is showing on the refrigerator display
- The code returns after a power reset
- Temperature from that sensor drifts out of line with the setting
How the refrigerator & drawers detects E7
Models with a second sensor give the 2010 control two views of the cabinet. Thermistor 2 changes resistance as its surroundings warm and cool, and the control translates that into a temperature. If the circuit is open, almost no signal gets through; if it is shorted, the signal collapses to a level no real cabinet could produce. Either way the control can tell the reading is not believable and raises E7. It does not try to tell you which of the two happened, because the answer to both is the same: a replacement sensor. Until then, the control cannot rely on thermistor 2 for regulation. The code stays on the display, and it only goes away once the circuit reads normally again.
Likely causes of E7
- Thermistor 2 with an internal open or short
- Sensor wiring that is nicked or crushed
- A poor connection at the sensor plug
Can you keep using the refrigerator & drawers with E7?
For a short time only. E7 means the second sensor is no longer giving the control a reliable reading, so the cabinet may not hold the temperature you set. Put a thermometer inside and check it often, and move perishables to another cooler if the reading rises. Leave the panels closed and do not try to probe the sensor yourself, since the part needs replacing.
What you can safely check
- Switch off the power by unplugging the refrigerator for a minute, then plug it in again.
- Jot down the code and see whether it returns.
- Make sure the door seals completely.
- If E7 returns, tell us. A new sensor is the fix, so keep the panels shut until a technician arrives.
What our technician does for E7
- Measure thermistor 2 and its wiring to learn whether the circuit is open or shorted
- Replace the sensor
- Confirm E7 clears and temperature control from that sensor is restored
How to keep E7 from coming back
- Load shelves gently so nothing strikes or pulls on sensor wiring inside the cabinet.
- Wipe up spills promptly so moisture does not collect around sensor connections.
Technical reference
- Code
- E7
- Appliance
- U-Line refrigerator & drawers
- Control family
- Echelon 2000 with the 2010 control, second-sensor models
- 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.
U-Line models that can show E7
Models named for this code in U-Line documentation that have a page here. Check the full model number on the rating label before you act on a code.
Related U-Line refrigerator & drawers error codes
E7 questions
Which sensor does E7 refer to?
Thermistor 2, the second temperature sensor on models that carry one. A reading that is open or one that is shorted both bring up E7. Models without that sensor, such as the 2175RF, never display it.
Will restarting the refrigerator clear E7?
A restart can clear a one-time glitch, but a broken or shorted sensor circuit is still there when the power returns, so E7 comes back. The sensor then has to be replaced.
How do I watch the cabinet in the meantime?
Use a thermometer inside the cabinet. Control from the second sensor cannot be relied on while E7 shows, so check often and move perishables if the reading rises, until the new sensor is fitted.
Why does my 2175RF never show E7?
The 2175RF does not have the second sensor circuit, so the control has nothing to report on it. Models with thermistor 2, such as the 2175DWRR and 2275ZWC, are the ones that can display E7.
What happens if I ignore E7?
The second sensor circuit stays unresolved, so temperature control from it stays unreliable. The refrigerator may keep running while food drifts out of range unnoticed. A thermometer in the cabinet is your safeguard until the part is replaced.
Need help with E7?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.