How do I fix error code R-1-ô on a Samsung refrigerators?

1. undefined: 1. Check Main PCB Connector CN90 insertion 2. undefined: 2. Verify Ice Maker Sensor unit is normal 3. undefined: 3. Measure voltage between CN90-#4(White) and REG1 Heat Sink (should be 4.6V~0.6V) 4. undefined: 4. Check IC10 MICOM #51 input voltage 5. undefined: 5. Measure resistance CN90 #3 → #4 and compare with temperature table

Samsung Refrigerators2009–present

Error Code R-1-ô

Q: What should I check first for error code R-1-ô?

Wiggle the connector at the ice maker to see if error clears

Ice maker temperature sensor has failed and needs replacement

Moderate

Address soon - your appliance may not work properly

Also displayed as: R-1-ô

What This Means

Sensor housing separation; Connector contact error; Sensor disconnection; Short circuit in sensor; Sensor temperature out of range (>149°F or <-58°F)

What actually causes this:

Sensor wires came loose from connector, or sensor electronics failed

First Thing to Check

Wiggle the connector at the ice maker to see if error clears

Parts Involved

Ice Maker Sensor (502AT Thermistor)

How to Fix

1
1. Check Main PCB Connector CN90 insertion
2
2. Verify Ice Maker Sensor unit is normal
3
3. Measure voltage between CN90-#4(White) and REG1 Heat Sink (should be 4.6V~0.6V)
4
4. Check IC10 MICOM #51 input voltage
5
5. Measure resistance CN90 #3 → #4 and compare with temperature table

This Error Applies To

Samsung RF195AC Series Refrigerators (2009) (2009–present)

Service manual exact match: RF195ACService manual exact match: RF20HFENBService manual exact match: RF197ACService manual exact match: RF18HFENBService manual exact match: RF215ACService manual exact match: RF217AC