How do I fix error code AUTOFILL_OVERFLOW_ERROR on a Samsung refrigerators?

1. undefined: Check voltage between MAIN PCB CN32-3 and CN32-6 2. undefined: 0V~4.5V indicates water overflow condition 3. undefined: 4.5V~5V indicates no problem 4. undefined: Inspect Auto Fill container for actual water overflow 5. undefined: Check Auto Fill DC valve operation

Samsung Refrigerators2017–present

Error Code AUTOFILL_OVERFLOW_ERROR

Q: What does error code AUTOFILL_OVERFLOW_ERROR mean on a Samsung refrigerators?

Auto Fill water infuser has too much water in it Water overflow in Auto Fill Infuser container; Water level sensor stuck or faulty; Auto Fill valve not closing properly

Auto Fill water infuser has too much water in it

Moderate

Address soon - your appliance may not work properly

Also displayed as: Both LEDs blink

What This Means

Water overflow in Auto Fill Infuser container; Water level sensor stuck or faulty; Auto Fill valve not closing properly

What actually causes this:

The automatic water infuser detected it has overflowed, which could mean the fill valve isn't shutting off or the sensor is stuck.

First Thing to Check

Open the Auto Fill compartment and check if there is actually water overflowing from the container.

Parts Involved

Auto Fill Infuser water level sensorAuto Fill DC valveMAIN PCB connector CN32

How to Fix

1
Check voltage between MAIN PCB CN32-3 and CN32-6
2
0V~4.5V indicates water overflow condition
3
4.5V~5V indicates no problem
4
Inspect Auto Fill container for actual water overflow
5
Check Auto Fill DC valve operation

This Error Applies To

Samsung RF23M80 Series Refrigerators (2017) (2017–present)

Service manual exact match: RF23M80*0**Service manual exact match: RF23M8090SR/AAService manual exact match: RF23M8070SR/AAService manual exact match: RF23M8070SG/AAService manual exact match: RF23M8090SG/SAService manual exact match: RF23M8080SR/EE