Error Code R1
Ice maker temperature sensor is not working properly
Moderate
Address soon - your appliance may not work properly
Also displayed as: R1 LED blink
What This Means
Sensor housing separation; Contact error at connector; Disconnected sensor wiring; Short circuit in sensor line; Temperature reading above 149°F or below -58°F
What actually causes this:
Most commonly caused by moisture damage to the sensor connector or a broken sensor wire near the ice maker
First Thing to Check
Unplug the refrigerator and visually inspect the ice maker sensor and its connector for damage or moisture
Parts Involved
How to Fix
- 1
Measure voltage between MAIN PCB CN90 #8 and #9
- 2
Voltage should be between 4.5V and 1.0V
- 3
Check for physical separation of sensor housing
- 4
Inspect connector for debris or damage
- 5
Verify continuity of sensor wiring
Other Error Codes for RF221NCTASL
Humidity monitoring system is not working
Water supply heater for ice maker is not working
Defrost system cannot monitor freezer coil temperature
Ice maker is not able to make or dispense ice
Freezer section is not getting circulation air flow
Refrigerator compressor will not operate or is operating abnormally
Refrigerator cannot sense the room temperature
Fresh food compartment is not getting enough cold air circulation