Error Code dF
The door switch isn't working properly
Moderate
Address soon - your appliance may not work properly
Also displayed as: dF
What This Means
Defective door switch giving invalid readings; Loose wire terminals in door switch circuit; Damaged door switch wiring harness; Door switch installed in wrong orientation after repair
What actually causes this:
The switch that detects whether the door is open or closed has worn out or its connection came loose.
First Thing to Check
Open the door, check for anything stuck in the door latch area, then close it firmly and try again.
Parts Involved
How to Fix
- 1
1. Inspect wire terminals in the door switch circuit for loose or open connections
- 2
2. Test door switch: Door open — COM-NC (pins 1-3) should be less than 1 ohm, COM-NO (pins 1-2) should be infinity
- 3
3. Test door switch: Door closed — COM-NC (pins 1-3) should be infinity, COM-NO (pins 1-2) should be less than 1 ohm
- 4
4. If switch readings are inconsistent or invalid, replace door switch
Parts Commonly Needed for This Error
OEM part numbers confirmed by retailers
This Error Applies To
Samsung DV52M7750 Series Dryers (2024) (2024–present)
Related Error Codes
Your dryer isn't heating properly or is overheating
Your dryer is getting the wrong voltage from the outlet
The dryer thinks the door is open while running
The dryer motor isn't spinning properly
A secondary temperature sensor is giving bad readings
The dryer's internal parts aren't communicating properly
Your dryer's temperature sensor isn't reading correctly
Your dryer is getting the wrong type of electrical power