LG LSXS26386D Service Manual page 49

Troubleshooting
2-6. Defrost Heater Error (dH F)
Symptom
1. F dH
CON201
CON1
1. Check the door gasket
2. Check the Defrost control part
3. Check the PCB output voltage
CON6 CON7
CON3
Check Point
CON8
CON9