What does error code CIRCUIT_FAN_ERROR mean on a Samsung refrigerators?

Condenser fan in the machine compartment is not running C-FAN motor failure; Obstruction in machine compartment; Wiring bad contact at CN40; MAIN PCB failure

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

1. undefined: Check voltage at MAIN PCB CN40 pin 15 (W/GRY) and pin 13 (S/BLU): should alternate DC7~12V and below DC2V 2. undefined: Check pulse at CN40 pin 11 (C) for ~2~3V 3. undefined: Verify external temperature is above 66.2°F (19°C); C-FAN may not run in cold ambient

Samsung Refrigerators2023–present

Error Code CIRCUIT_FAN_ERROR

Condenser fan in the machine compartment is not running

Critical

Stop using immediately - risk of damage or safety issue

Also displayed as: F and R blink

What This Means

C-FAN motor failure; Obstruction in machine compartment; Wiring bad contact at CN40; MAIN PCB failure

What actually causes this:

The condenser fan that cools the compressor area has stopped, which will cause the compressor to overheat and the refrigerator to stop cooling.

First Thing to Check

Pull the refrigerator out and look into the machine compartment at the back to see if the condenser fan is spinning when the compressor runs.

Parts Involved

BLDC C-FAN Motor (DC12V, C160N, Φ160, 1.32W)MAIN PCB CN40

How to Fix

1
Check voltage at MAIN PCB CN40 pin 15 (W/GRY) and pin 13 (S/BLU): should alternate DC7~12V and below DC2V
2
Check pulse at CN40 pin 11 (C) for ~2~3V
3
Verify external temperature is above 66.2°F (19°C); C-FAN may not run in cold ambient

This Error Applies To

Samsung RF23BB89 Series Refrigerators (2023) (2023–present)

Service manual exact match: RF29BB89***Service manual exact match: RF24BB66***Service manual exact match: RF30BB62***Service manual exact match: RF29BB82***Service manual exact match: RF30BB69***Service manual exact match: DRF36C300**Service manual exact match: RF24BB69***Service manual exact match: RF30BB66***+2 more