Error Code CF4
CR Top Sensor Open/Short — Center Rear induction cooktop top sensor is open or shorted
Moderate
Address soon - your appliance may not work properly
What This Means
CN01T connector on Right Inverter PCB disconnected or loose; Shorted internal pins; Failed NTC top sensor (~20 kΩ)
How to Fix
- 1
OPEN: Check CN01T connection on Right Inverter PCB; reconnect if loose
- 2
OPEN: Check if CN01T(Pin2) shorted to CN01Y or CN11F(Pin3); if shorted, replace PCB
- 3
OPEN: If no short, replace top sensor
- 4
SHORT: Measure CN01T resistance (normal infinite); check R01T (~20 kΩ); replace PCB if abnormal, replace sensor if R01T normal
This Error Applies To
LG LSIL6332FE Series Ovens & Ranges (2024) (2024–present)
Related Error Codes
Right Communication Error — communication error at right inverter module
LR Top Sensor Open/Short — Left Rear induction cooktop top sensor is open or shorted
RF Top Sensor Open/Short — Right Front induction cooktop top sensor is open or shorted
Left IGBT Sensor Open/Short — Left inverter IGBT temperature sensor fault
Left Communication Error — communication error at left inverter module
Sensor open — oven thermistor circuit is open
Sensor short — oven thermistor circuit is shorted
Convection fan motor error — convection fan operation cannot be detected for over 1 minute during convection operation