mypros+
Error code reference

Mabe Refrigerator Error Code E1

Temperature sensor fault in the refrigerating chamber.

Mabe codesMabe refrigerator codes

Temperature sensor fault in the refrigerating chamber.

First step from the service manual

Check whether the temperature sensor terminal on the main control board is well connected; disconnect and reconnect the terminal.

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 E1.

  • 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 E1 means on a Mabe refrigerator

The E1 error code on a Mabe refrigerator indicates a fault in the temperature sensor located in the refrigerating chamber (fresh food compartment). This sensor, also called a thermistor, is a resistive component that changes its electrical resistance in response to temperature changes. The main control board reads this resistance to determine the compartment temperature and regulate the cooling cycle accordingly. When the board detects a signal that falls outside the expected parameters, either an open circuit, a short circuit, or an out-of-range resistance reading, it triggers the E1 fault and may suspend normal temperature regulation.

The most common starting point for diagnosing this fault is the electrical connection between the sensor and the main control board. A loose, corroded, or improperly seated terminal connector can interrupt the signal and produce the same error as a failed sensor. Reconnecting the terminal firmly at the board-side connector is the first recommended step and will resolve the fault if a poor connection is the root cause.

If reconnecting the terminal does not clear the error, the sensor itself or the wiring harness between the sensor and the board should be inspected further. Physical damage to the sensor, moisture intrusion, or a broken wire in the harness can all cause the board to read an incorrect or absent signal. In some cases the main control board itself may be the source of the fault if it cannot correctly process the sensor input, though board failure is generally less common than sensor or connection issues.

Source: manufacturer service documentation.

Common causes of E1

  1. 01

    Loose or disconnected sensor terminal at the control board

    Wiring / connection

    The connector linking the temperature sensor to the main control board may have worked loose over time. Disconnecting and firmly reseating this terminal is the first recommended diagnostic step and can resolve the error without replacing any parts.

  2. 02

    Faulty or failed refrigerator compartment thermistor

    Part replacement

    The thermistor itself may have failed, producing a resistance value outside the range the control board accepts, or no signal at all. If the wiring checks out but the error persists, the sensor will need to be tested and likely replaced.

  3. 03

    Damaged wiring harness between sensor and control board

    Part replacement

    A broken, pinched, or chafed wire anywhere along the harness connecting the sensor to the board can interrupt or corrupt the signal. Visually inspect the harness for signs of wear, rodent damage, or pinching near cabinet edges.

  4. 04

    Corroded or oxidized connector terminals

    Wiring / connection

    Moisture inside the refrigerator compartment can cause the sensor connector pins to corrode over time, increasing resistance in the connection and causing intermittent or persistent E1 faults. Inspect the terminals for discoloration or buildup.

  5. 05

    Main control board fault

    Part replacement

    If the sensor, wiring, and connections all test correctly, the main control board may have failed and is unable to read the sensor input properly. Board replacement is typically a last-resort diagnosis after all other components are confirmed good.

See the test procedure for each cause

Frequently asked questions about E1

What does E1 mean on a Mabe refrigerator?
The E1 code on a Mabe refrigerator indicates a temperature sensor fault in the refrigerating chamber. The control board is not receiving a valid signal from the thermistor that monitors the fresh food compartment temperature. This can result from a loose connection, a failed sensor, damaged wiring, or in rare cases a faulty control board.
How do I fix the E1 error code on my Mabe refrigerator?
Start by locating the temperature sensor terminal on the main control board, disconnecting it, and firmly reconnecting it to ensure a solid electrical connection. If the error returns after reconnecting, inspect the wiring harness for damage and test the sensor itself. A faulty thermistor will need to be replaced to clear the fault permanently.
Will resetting my Mabe refrigerator clear the E1 error?
A power reset may temporarily clear the E1 code, but the error will return if the underlying cause is not addressed. If the fault is due to a loose terminal, reseating the connector before resetting may resolve it permanently. If the sensor or wiring is actually damaged, a reset alone will not fix the problem.
Is it safe to keep using my Mabe refrigerator while the E1 code is active?
Operating the refrigerator with an active E1 error is not recommended for extended periods. Because the control board cannot accurately read the compartment temperature, it may not regulate cooling correctly, which could lead to food stored in the fresh food section being held at unsafe temperatures.
How much does it cost to repair a Mabe refrigerator E1 error?
If the issue is only a loose connector, there may be no parts cost at all, just the cost of a service call if you hire a technician. Replacing the temperature sensor typically costs in the range of $20 to $80 for the part, plus labor. If the main control board needs replacement, costs can range from $100 to $300 or more depending on the specific model and labor rates in your area.

Related Mabe refrigerator codes

All Mabe refrigerator codes
View all 11 Mabe refrigerator codes

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

Get Started

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