Error Code 16
Fridge compartment humidity sensor is not working
Moderate
Address soon - your appliance may not work properly
Also displayed as: 16
What This Means
Fridge humidity sensor connector disconnected; Humidity sensor defective or open circuit; Wiring harness damage; Main PCB defect
What actually causes this:
Humidity sensor wire came loose or sensor failed
First Thing to Check
Unplug refrigerator, wait 30 seconds, and plug back in to reset — if error persists, call technician
Parts Involved
How to Fix
- 1
1. Check voltage between Main PCB CN30 pins 7 and 8 — should be within 4.1V to 0.8V range
- 2
2. Reconnect sensor connector if loose
- 3
3. Check wiring harness for visible damage or moisture
- 4
4. Measure sensor resistance with power off
- 5
5. If voltage readings are correct, replace Main PCB
This Error Applies To
Samsung RF22K9581 Series Refrigerators (2016) (2016–present)
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