mypros+
Error code reference

U-Line Refrigerator Error Code L Evap T Short

Left evaporator thermistor circuit is shorted.

U-Line codesU-Line refrigerator codes

Left evaporator thermistor circuit is shorted.

First step from the service manual

Inspect thermistor cable for pinch points or damage. Replace if necessary.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for L Evap T Short.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What L Evap T Short means on a U-Line refrigerator

The L Evap T Short error code on a U-Line refrigerator indicates that the left evaporator thermistor circuit has developed a short condition. The evaporator thermistor is a temperature-sensing resistor that monitors the temperature at the left evaporator coil. The control board uses this reading to regulate the refrigeration cycle, defrost timing, and fan operation. When the thermistor circuit shorts, its resistance drops abnormally low, sending an out-of-range signal to the control board and triggering this fault.

A shorted thermistor circuit typically results from physical damage to the thermistor cable, its connector, or the thermistor component itself. Pinched wiring is one of the most common causes, often occurring where the cable routes through panels, grommets, or tight corners inside the cabinet. Moisture intrusion at the connector or along the cable insulation can also create a low-resistance path that mimics a short. In some cases, the thermistor probe itself has failed internally.

Diagnosing this code requires a careful inspection of the entire thermistor cable run from the probe location at the left evaporator coil back to the control board connector. Look for signs of pinching, abrasion, melted insulation, or corrosion at any connector. A multimeter can confirm a short by measuring near-zero resistance across the thermistor leads when disconnected from the board. A properly functioning thermistor will show a measurable resistance value that changes with temperature.

Source: manufacturer service documentation.

Common causes of L Evap T Short

  1. 01

    Pinched or damaged thermistor cable

    Part replacement

    The thermistor cable can become pinched at panel edges, grommets, or mounting points during installation or servicing. Inspect the full cable run for kinks, cuts, or compression points that could cause the wires to contact each other.

  2. 02

    Failed thermistor probe

    Part replacement

    The thermistor itself can fail internally, causing a short across its leads. Disconnect the thermistor from the circuit and measure resistance with a multimeter. A shorted probe will show near-zero resistance regardless of temperature.

  3. 03

    Moisture or corrosion at the connector

    Wiring / connection

    Water or frost intrusion at the thermistor connector can create a conductive path between terminals, simulating a short. Inspect the connector for discoloration, corrosion, or moisture and dry or replace as needed.

  4. 04

    Damaged wire insulation causing a short to ground or adjacent wire

    Part replacement

    Abrasion from nearby components or sharp edges can wear through wire insulation, allowing conductors to contact each other or a grounded metal surface. Check the cable jacket along its entire length for worn or melted spots.

  5. 05

    Faulty control board input circuit

    Part replacement

    In rare cases, the control board's thermistor input circuit can fail and falsely report a short even when the thermistor and wiring are intact. This should only be suspected after the thermistor and cable have been confirmed good.

See the test procedure for each cause

Frequently asked questions about L Evap T Short

What does L Evap T Short mean on a U-Line refrigerator?
L Evap T Short means the control board has detected a short circuit in the left evaporator thermistor circuit. The thermistor is a temperature sensor mounted near the left evaporator coil. When its circuit resistance drops abnormally low due to damaged wiring or a failed sensor, the board logs this fault and may alter or disable normal cooling operation.
How do I fix the L Evap T Short error on my U-Line refrigerator?
Start by inspecting the thermistor cable for any pinch points, cuts, or signs of damage along its entire length from the evaporator coil to the control board. Check the connector for corrosion or moisture. If the cable or thermistor probe appears damaged, replace the affected component. Use a multimeter to verify the thermistor reads an appropriate resistance value after any repair before reassembling.
Will resetting my U-Line refrigerator clear the L Evap T Short error?
A power reset may temporarily clear the error code from the display, but it will return if the underlying short circuit in the thermistor wiring or probe has not been repaired. The fault needs to be physically corrected for the code to stay cleared. Repeated resets without repair can mask the issue and allow cooling performance to degrade.
Is it safe to keep using my U-Line refrigerator when the L Evap T Short error is active?
Running the unit with an active L Evap T Short code means the control board is not receiving accurate temperature data from the left evaporator. This can lead to improper cooling, inefficient defrost cycles, or potential food safety issues if temperatures are not maintained correctly. It is best to address the fault promptly rather than continuing to operate the refrigerator in a faulted state.
How much does it cost to repair the L Evap T Short error on a U-Line refrigerator?
If only the thermistor probe or cable needs replacement, parts typically range from around $15 to $60 depending on the specific component. Labor for a qualified technician can add $75 to $200 or more depending on your location and the time required for diagnosis and repair. If the control board's thermistor input circuit is found to be faulty, board replacement will significantly increase the total cost.

Related U-Line refrigerator codes

All U-Line refrigerator codes
View all 52 U-Line refrigerator codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass