How do I fix error code dH F on a LG refrigerators?

1. undefined: 1. Check door gasket for damage. If damaged, replace door gasket. 2. undefined: 2. Check defrost control assembly: measure Fuse-M resistance — should be 0 ohm (continuity). If open, replace. 3. undefined: 3. Measure defrost heater resistance — should be 34-42 ohm. If open (infinity), replace defrost heater. 4. undefined: 4. Check defrost sensor resistance — should be ~22k ohm at room temperature. If open, replace. 5. undefined: 5. Enter TEST MODE 3 (push test button 3 times): measure voltage across CON7 6th Pin to 12th Pin — should be 112-116V. If voltage is present but heater does not heat, replace heater. 6. undefined: 6. Enter TEST MODE 1 (push test button 1 time): measure CON7 6th Pin to 12th Pin — should be 0V. If not 0V, replace Main PCB. 7. undefined: 7. If all checks pass, explain to customer.

LG Refrigerators

Error Code dH F

Defrost Heater Error / Poor Defrosting

Moderate

Address soon - your appliance may not work properly

How to Fix

1
1. Check door gasket for damage. If damaged, replace door gasket.
2
2. Check defrost control assembly: measure Fuse-M resistance — should be 0 ohm (continuity). If open, replace.
3
3. Measure defrost heater resistance — should be 34-42 ohm. If open (infinity), replace defrost heater.
4
4. Check defrost sensor resistance — should be ~22k ohm at room temperature. If open, replace.
5
5. Enter TEST MODE 3 (push test button 3 times): measure voltage across CON7 6th Pin to 12th Pin — should be 112-116V. If voltage is present but heater does not heat, replace heater.
6
6. Enter TEST MODE 1 (push test button 1 time): measure CON7 6th Pin to 12th Pin — should be 0V. If not 0V, replace Main PCB.
7
7. If all checks pass, explain to customer.