Error code reference

Marvel Ice Maker Error Code 4 blinks

Both bin and evaporator thermistors are out-of-range.

First step from the service manual

Test both thermistors' resistance values and compare to Table C in Section 5.2. Replace any that are out of specification.

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 4 blinks.

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

M+

M+ Max·Marvel Ice Maker

4 blinks on my Marvel Ice Maker

M+

Both bin and evaporator thermistors are

From Service Manual 337709, p.41:

1.Test both thermistors' resistance values and compare to Table C in Section 5.2. Replace any that are out of specification.

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

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

Get Started

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

First step from the service manual

Get the full diagnostic procedure for 4 blinks.

Related Marvel ice maker codes