U-Line Echelon 2000 E6: Cabinet Running Too Cold
E6 on a U-Line Echelon 2000 refrigerator means thermistor 1 has measured a cabinet 10 F colder than the set point for over 12 hours. The cabinet is far too cold, and food can freeze.
What does U-Line refrigerator & drawers code E6 mean?
Echelon 2000 refrigerators on the 2010 control, the 2175RF and 2175DWRR among them, show E6 once thermistor 1 measures a cabinet 10 F colder than the set point for longer than 12 hours. That is much colder than you asked for. The cause pointed to is a relay and circuit board that let the cooling carry on beyond the target temperature, and food close to the back wall is the first to freeze.
E6 at a glance
- Code
- E6
- Appliance
- U-Line refrigerator & drawers
- Applies to
- Echelon 2000 with the 2010 control, overcooling code
- Type
- Stop using it until checked
- Can you clear it yourself?
- No, stop using it until it is checked
- Most likely cause
- A relay on the control that has stuck in the closed position
What you may notice with E6
- E6 is showing on the refrigerator display
- Items near the back wall are frozen or icy
- The cooling seems to run without ever cycling off
How the refrigerator & drawers detects E6
The 2010 control normally switches the cooling on when thermistor 1 reads above the set point and off again when the cabinet is cold enough. Between those switch points the temperature stays near what you chose. When thermistor 1 keeps showing a cabinet 10 F colder than the setting for longer than 12 hours, the control sees that the off step is not working and shows E6. The part that makes the off step happen is a relay on the control board. If it stays closed, current keeps reaching the cooling system and the cabinet keeps dropping. The board that drives the relay can be the failed part as well. That is why the cabinet ends up colder than requested and why items near the back wall freeze first.
Likely causes of E6
- A relay on the control that has stuck in the closed position
- A circuit board that no longer switches the cooling off
- A cooling cycle that runs past the set point without stopping
Can you keep using the refrigerator & drawers with E6?
Only briefly. A cabinet running far below the set point can freeze food, bottles and anything with water in it, so move delicate items out. Raising the set point shows whether the control still responds, but if the cabinet stays cold, the cooling is not shutting off. Unplug it if you need to protect contents, and keep the control closed. A repair is needed to stop the overcooling.
What you can safely check
- Turn the set point up by a few degrees, then unplug the refrigerator for one minute and restore power.
- See whether the display responds to the new setting.
- Take out food that touches the back wall, because it can freeze.
- Should E6 come back, tell us. Leave the control closed.
What our technician does for E6
- Test the relay and the board that switches the cooling
- Replace the relay or board that no longer shuts the cooling off
- Confirm the cabinet follows the set point afterward
How to keep E6 from coming back
- Keep bottles and produce away from the back wall, where the cabinet runs coldest.
- Check the cabinet temperature now and then with a thermometer, so overcooling is caught early.
- Use a surge protector or have the outlet checked after storms, since power surges can damage a control board.
Technical reference
- Code
- E6
- Appliance
- U-Line refrigerator & drawers
- Control family
- Echelon 2000 with the 2010 control, overcooling code
- 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 E6
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
E6 questions
Why is my U-Line freezing food with E6 showing?
With E6, the cabinet has been 10 F colder than its setting for over 12 hours. Cooling that keeps going is the result of a relay stuck closed, so the control cannot end the cycle at the set point.
Does raising the temperature help?
Try it; the cabinet reaction tells you whether the control still listens. A cabinet that stays cold at a higher setting means the relay or board has to be replaced.
Should I leave it plugged in?
With power on the cooling continues, so food and bottles can freeze and burst. Move items out or reduce the load until the repair is done. The price is given in writing before work begins, and the work carries a 30-day warranty.
Is E6 the mirror image of the warm-cabinet alarm?
Yes. The warm-cabinet alarm reports a cabinet 10 F over the set point for 12 hours, and E6 reports one 10 F under it. Both come from thermistor 1, but they point to different causes.
Will turning the refrigerator off for a while fix E6?
A rest may let the cabinet warm, but it does not repair a relay that stays closed. When power returns, the cooling runs past the set point again, and E6 comes back.
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.