Error code reference

Marvel Freezer Error Code E4

Display thermistor fault - the display thermistor is open, shorted, disconnected, or out of range.

SourceMarvel Freezer - Job Aid: Sentry Control Diagnostics (Chateau Series)E-4 Error Code section

Diagnostic procedure

The full E4 procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview

First diagnostic step

Check if display thermistor is disconnected, then check if thermistor is unplugged on UI board, check for broken pin in harness connector, check thermistor resistance.

SourceMarvel Freezer - Job Aid: Sentry Control Diagnostics (Chateau Series)E-4 Error Code section

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More steps, wiring diagram references, and verified part numbers

Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.

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Where this code is documented

1 manual in the MyPros+ library documents this code for Marvel freezer.

Models covered by the manuals that document this code

41012179

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The full E4 procedure

Where this code is documented

Models covered by the manuals that document this code

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