Error code reference

Amana Refrigerator Error Code Open Thermistor Detect

If freezer or refrigerator thermistor circuit is open, wiring to them is open, or low voltage board fails, the freezer or refrigerator indicator lights 4 through 7 will sequence until Alarm Off is pressed.

SourceAmana Refrigerator - Tech Sheet: SBDE520TW/SRDE520TW/SRDE520TBWp. 5

Diagnostic procedure

The full Open Thermistor Detect 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
1
First diagnostic step
Check thermistor resistance values and wiring continuity to thermistors and low voltage board.

SourceAmana Refrigerator - Tech Sheet: SBDE520TW/SRDE520TW/SRDE520TBWp. 5

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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