Model reference

Sub-Zero UW-24

Name: Sub-Zero UW-24
Brand: Sub-Zero

Refrigerator

2 documents9 error codes7 service modes

Available documentation

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M+ Max·Sub-Zero Refrigerator

05 on my Sub-Zero UW-24

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Upper Cabinet Thermistor read open or

From Service Manual 616168, p.20:

1.Access service mode to confirm the active fault code and read stored error history.

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

3.Check the sensor harness for opens. A reading outside 5 kΩ to 50 kΩ indicates a failed sensor.

Part WP8577274

Temperature thermistor

CodeMeaning

Clear Error CodesWith unit ON and problem corrected, press and hold the ALARM key for 15 seconds
Diagnostic ModeWith unit ON, press and hold either COLDER key, then press the POWER key, then release both keys.
Manual Valve Activation ModeWith unit ON, press and hold the desired compartment COLDER key and POWER key for 10 seconds.
Sabbath ModeSwitch unit OFF using POWER key, then press and hold the POWER key for 10 seconds until the lights…
Showroom ModeSwitch unit OFF using POWER key, then press and hold the upper compartment WARMER and COLDER keys…
Temperature Log Recall ModeWith unit ON, press and hold the desired compartment WARMER key, then press the POWER key, then…
Temperature Units Selection ModeMust be performed within the first minute after switching unit ON

Full entry steps, exit procedures, and test sequences are available in Max.

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