Error Code F-DEF ERROR
The freezer defrost heater isn't working
Moderate
Address soon - your appliance may not work properly
Also displayed as: Freezer -23 C LED blinking
What This Means
Connector slipped out or open contact; Wire cut or short-circuited; Defective defrost thermistor; Bimetal open or defective; Thermal fuse blown; Defrost heater element open
What actually causes this:
The heating element that defrosts the freezer coils has failed or lost electrical connection
First Thing to Check
Check if frost is visibly building up on freezer coils inside the freezer compartment
Parts Involved
How to Fix
- 1
1. Remove MAIN PCB CN70 and CN77 connectors from the MAIN PCB
- 2
2. Read continuity between BROWN and ORANGE wires
- 3
3. Heater resistance between CN70 #5 (BRN) and CN77 #3 (ORG) should be 260 ohm +/- 10%
- 4
4. If 0 Ohm, check for heater short
- 5
5. If infinity Ohm, check if wire, thermal fuse, or bimetal is open
This Error Applies To
Samsung RB10FSR4ESR Series Refrigerators
Related Error Codes
The refrigerator temperature sensor isn't reading correctly
The external temperature sensor isn't sending correct readings
The freezer temperature sensor isn't reading correctly
The refrigerator cannot read the room temperature
The freezer cannot read its own temperature
The fridge cannot read its own temperature
The condenser fan motor in the machine room isn't running
The defrost system cannot measure its temperature