Error code reference

Marvel Refrigerator Error Code E4

Lower compartment thermistor sensor error indicating the sensor is open or out-of-range.

First step from the service manual

Perform a Power-On-Reset (unplug and replug the unit) to verify the fault persists before further diagnostics.

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

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Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the OEM service manual
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E4 on my Marvel Refrigerator

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Lower compartment thermistor sensor error

From Service Manual 224018, p.30:

1.Perform a Power-On-Reset (unplug and replug the unit) to verify the fault persists before further diagnostics.

2.Disconnect the sensor and measure resistance at the sensor body. Expected: 10 kΩ to 12 kΩ at 77°F (25°C).

3.Check the sensor harness for opens and shorts. Back-probe the sensor pins at the control board connector; a reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part WP8577274

Temperature thermistor

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First step from the service manual

Get the full diagnostic procedure for E4.

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