How do I fix error code HUMIDITY-SENSOR on a Samsung refrigerators?

1. undefined: Check MAIN PCB connector CN60 is fully inserted 2. undefined: Measure voltage at CN60-'7' '3': normal range is 1.0V to 3.5V 3. undefined: Disconnect CN60 and measure resistance at CN60-'7' ↔ '3': open circuit reads about 50Ω 4. undefined: Check R366 (IC01 MICOM #8) on PCB for solder defects

Samsung Refrigerators2022–present

Error Code HUMIDITY-SENSOR

Q: What does error code HUMIDITY-SENSOR mean on a Samsung refrigerators?

Refrigerator humidity sensor is faulty Bad connector at CN60 pins 7 and 3; Open or short circuit in humidity sensor; Failed HTG3515CH or HTG3535CH sensor

Refrigerator humidity sensor is faulty

Minor

Usually easy to fix - may resolve on its own

Also displayed as: Indicated via self-diagnosis

What This Means

Bad connector at CN60 pins 7 and 3; Open or short circuit in humidity sensor; Failed HTG3515CH or HTG3535CH sensor

What actually causes this:

The sensor measuring humidity inside the fridge has failed; this can affect crisper drawer performance.

First Thing to Check

Reseat the connector at CN60.

Parts Involved

Humidity sensor HTG3515CH/HTG3535CHMAIN PCB connector CN60 pins 7 and 3Resistor R366

How to Fix

1
Check MAIN PCB connector CN60 is fully inserted
2
Measure voltage at CN60-'7' <-> '3': normal range is 1.0V to 3.5V
3
Disconnect CN60 and measure resistance at CN60-'7' ↔ '3': open circuit reads about 50Ω
4
Check R366 (IC01 MICOM #8) on PCB for solder defects

This Error Applies To

Samsung RF25C5 Series Refrigerators (2022) (2022–present)

Service manual exact match: RF25C5151SR/AAService manual exact match: RF25C5151**Service manual exact match: RF25C5551**Service manual exact match: RF25C5551SR/AA