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LG RangeOven Error Codes

No. Error Symptom Cause
1 Opened Sensor F1 Oven sensor (thermistor) remains open for oven 1 min during cooking.
2 Shorted Sensor F2 Oven sensor (thermistor) is short for over 1 min during cooking.
3 Key shorted Error F3 When some keys are continuously short for over 60 seconds.
4 Oven hot F6 The oven temp is over 650°F continuously during 2 minutes on cooking except self cleaning.
5 No heating F9 If starting oven temp does not exceed 150°F and oven temp is less than or equal to starting temp over 5 minutes during preheating, while door is closed.
6 Probe Sesnor short F8 Right oven probe sensor short error check
7 Door lock fail F10 In case of door lock failure during operating lock motor
8 Comm. Error F11 The communication error happened between cooktop PCB and oven PCB over 10 seconds in the self clean mode.
9 LF Top Sensor Open/ Short CF1 LF Top sensor is open or short
10 LR Top Sensor Open / Short CF2 LR Top sensor is open or short
11 RF Top Sensor Open/ Short CF3 RF Top sensor is open or short
12 RR Top Sensor Open/ Short CF4 RR Top sensor is open or short
13 Left IGBT Sensor Open/ Short CF5 Left IGBT sensor is open or short
14 Right IGBT Sensor Open/ Short CF6 Right IGBT sensor is open or short
15 Left Comm. Error CF7 Right IGBT sensor is open or short
16 Right Comm. Error CF8 Communication error at right module
17 Over Current CFA Communication error at right module
18 Over Voltage CFC Over voltage occurs at the cooktop
19 Box fan error CFF Box fan not working properly
20 Convection fan error F7 Convection fan operating can't be detected over 1 minute in all cases of Upper convection fan operating.
21 Stalled Fan lock error F27 When cooling fan is stalled during self clean
22 Sensor open F1F4 Oven thermistor is open
23 Sensor short F2F5 Oven thermistor is shorted
24 Oven hot F6F16 The oven temp is over 650°F continuously during 2 minutes on cooking except self cleaning.
25 Probe short F18 Loer oven probe is shorted.
26 Oven no heating F9F19 EXCEPT PROOF and WARM Starting temp of 130° for less, and the oven door is closed, the ove inside temp does not go up more than 10°F compared with the starting temp for 5 minutes after the start of cooking
27 Door lock fail F10F20 If the door lock fails while operating the lock motor
28 Oven sensor open F4 Oven thermistor remains open for over 60 seconds, after cook starts during cooking
29 Oven sensor short F5 Oven thermistor is short for over 60 seconds after cook starts during cooking
30 Oven is hot F16 Oven temp is over 650°F continuously during 2 minutes on cooking except self cleaning.
31 Oven no heating F19 EXCEPT PROOF, WARM, SpeedClean, SteamClean, Drying, Descaling and SousVide Case 1: Start temperature does not exceed 130 ℉ and oven temperature is less equal than 150 ℉ and max oven temperature is less equal than start oven temperature + 10 ℉ over 5 minutes on preheating, where door is closed. Case 2: Oven temperature is less equal than 100 ℉ over 5 minutes on preheating, where door is closed.
32 Door lock fail F20 If door lock failure while operating the lock motor.
33 Steam sensor open F24 Steam thermistor remains open for 10 second after the steam heater operated from 5 minutes.
34 Steam sensor short F25 Steam thermistor is short for over 60 seconds after the steam heater operated.