U-Line Refrigerator R Evap T Open: Right Evaporator Sensor Open
R Evap T Open means the control cannot read the right evaporator thermistor because its circuit is open, so the right-hand cold coil temperature is missing.
What does U-Line refrigerator & drawers code R Evap T Open mean?
R Evap T Open is a right-side message from a U-Line refrigerator whose zones are controlled separately. The R stands for the right side. The right evaporator thermistor measures the cold coil that serves the right compartment. When its circuit is open the control gets no usable reading and reports the break. The message points to the right sensor, its connector or its wiring, and the left side is not the one named.
R Evap T Open at a glance
- Code
- R Evap T Open
- Appliance
- U-Line refrigerator & drawers
- Applies to
- U-Line digital control, right coil sensor
- Type
- Needs attention soon
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- A loose or partly pulled-out connector at the right evaporator thermistor
What you may notice with R Evap T Open
- R Evap T Open appears on the display
- The right compartment feels warmer than the left
- Frost may collect on the right rear wall
- The message returns after you power the unit back on
How the refrigerator & drawers detects R Evap T Open
Each half of this U-Line refrigerator has its own coil sensor. The right evaporator thermistor reports how cold the right-hand coil is, and the control leans on that number to time cooling and defrost for the right compartment.
When the circuit is open, the control measures no current path to the sensor, which a working coil never produces. It decides the right sensor or its wiring has failed and shows R Evap T Open. Without the right coil reading, that side is managed with less precision. The left side relies on its own sensor, so it may keep behaving normally while the right one struggles.
Likely causes of R Evap T Open
- A loose or partly pulled-out connector at the right evaporator thermistor
- A right evaporator thermistor that has failed and no longer carries current
- A damaged or broken wire on the right sensor run
Can you keep using the refrigerator & drawers with R Evap T Open?
This is a sensor problem, not a gas or heat hazard, so the unit can stay plugged in for a short time. The right side might not cool well, so check it with a thermometer and shift delicate food to the left or another cold place. If the right side keeps warming or ice builds up, switch the unit off and arrange service.
What you can safely check
- Turn off the breaker or unplug the refrigerator before checking, so nothing on the right side sensor circuit is powered.
- Wait about a minute, then restore power and watch whether R Evap T Open returns.
- Feel whether the right compartment seems warmer than the left.
- Put a refrigerator thermometer on each side and compare them after a few hours.
- Leave panels closed. Call us if the message comes back.
What our technician does for R Evap T Open
- Test the right evaporator thermistor circuit for an open
- Reseat the connector and trace the right-side wire run
- Fit a new right evaporator thermistor when it measures outside range
- Confirm the control reads the right coil normally afterward
How to keep R Evap T Open from coming back
- Do not wedge boxes against the right rear wall, where they can squeeze the sensor wire.
- Unplug the unit before sliding it out for cleaning, since a pulled cord can loosen internal connectors.
Technical reference
- Code
- R Evap T Open
- Appliance
- U-Line refrigerator & drawers
- Control family
- U-Line digital control, right coil sensor
- 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 refrigerator & drawers error codes
R Evap T Open questions
What does the R in R Evap T Open mean?
The R stands for the right side. The control reports an open circuit at the right evaporator thermistor, so the right sensor and its wiring are the focus of the repair.
Is the left side affected by R Evap T Open?
Not directly, because the left side has its own sensor. Still, compare both sides with a thermometer, since a right-side cooling problem can change how the whole unit behaves.
Will unplugging fix R Evap T Open?
It might clear a one-time glitch. If a connector or wire is damaged, the message comes back, so one restart is enough before you stop and have the circuit tested.
Is the right coil sensor a separate part from the left one?
Yes. The right side has a coil sensor of its own, apart from the left. That is why the code names the right, and why a repair is made on the right sensor and its wires.
What should I mention about R Evap T Open on the phone?
Give us the exact display text, whether only the right side feels warm, and whether the message came back after a restart. That lets us prepare for the right-side sensor test.
Need help with R Evap T Open?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.