LG Refrigerator error code CF
Condenser fan fault
Quick answer
On LG Refrigerator (2010s onward), CF is a fault. It means condenser fan fault. A first thing to check: Condenser fan motor bearing failed or motor burnt out.
- Applies to
- LG Refrigerator
- LG refrigerator codes · Refrigerator · 2010s onward
- Type of code
- Fault
- Urgency: Needs attention soon
- First safe check
- Pull the refrigerator out and look at the back for dust, cardboard, and airflow blockers.
What CF means on this model
The fan that draws air across the condenser coil has failed, which on this brand often shows as warm cabinet sides and a compressor that never stops. The coil and the space behind the cabinet are worth clearing before the fan is blamed.
Symptoms you will notice
- Cabinet is warm to the touch and the compressor runs constantly
- No air comes from the vents at the bottom or the back of the cabinet
- Condensation or standing water on top of the refrigerator
- Code appears and the compressor shuts down to protect itself
Common causes
The code tells you what the control detected, not which part failed. These are the causes we see most often, roughly in order of likelihood:
- Condenser fan motor bearing failed or motor burnt out
- Coil or housing obstructed by boxes, a mattress, or debris
- Fan blade fouling a shroud, or ice from a defrost fault
- Fan relay or the board output that drives it
- Blocked or kinked condenser tubing, so the fan runs against high pressure
- A failed fan motor dragging the compressor down until it overheats
What you can safely check
These are homeowner-level checks. None of them need you to open a live electrical compartment or work on gas.
- Pull the refrigerator out and look at the back for dust, cardboard, and airflow blockers.
- Listen for the fan running when the compressor starts, and check whether a blade is visibly stuck.
- Check the clearance behind the cabinet, which manufacturers specify and which is often filled in over the years.
Do not do these
- ×Do not push the cabinet back hard against the wall or cabinets without checking the specified clearance. A blocked condenser is one of the most common causes of early failure.
- ×Do not add refrigerant for a fan that is not running. The refrigerant is very likely fine and the compressor will be damaged.
When to call a technician
Book a technician, do not keep resetting it
This fault will not clear on its own. Every power cycle gives the control one more failed attempt, and repeated attempts are what turn a cheap part replacement into a seized or contaminated system.
- If the appliance has stopped mid-cycle, is making a noise you have not heard before, or smells burnt, stop reading here and call. Those are symptoms of something the fault code does not describe well enough.
A rear-mounted fan is accessible once the cabinet is pulled out, which is moderate work. Fan relays and boards are a technician job.
What it costs to fix
Parts
Condenser fan motor $45 to $130. Fan relay or board output $25 to $80. Defrost timer or board $80 to $200.
Labor
One to two hours for a fan motor.
DIY or technician
A rear-mounted fan is accessible once the cabinet is pulled out, which is moderate work. Fan relays and boards are a technician job.
Typical US part and labor ranges, 2026. They vary by region, model and contractor, so treat them as a planning figure, not a quote.
Scope of this code
- Code table
- LG refrigerator codes
- Models in scope
- LG Refrigerator, 2015 onward
- Checked
- Confirm on your own unit
- Find the model number on the data plate, then check this code in the service manual for that model. Manufacturers revise code tables between model years, and a revised board can renumber a fault.