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LRG4115ST F9 code

Joined
Dec 27, 2022
Messages
1
Location
Calgary
Model Number
LRG4115ST
Brand
LG
Age
1-5 years
I have a strange situation where I get the F9 code, failure to reach 150 in 5 mins on bake.

Broil works fine and Bake Convection works, only happens on thr bake setting. I thought igniter but would that be a common issue to both bake/bake convention?
 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
137,440
Location
Vicksburg Junction, Arizona
Hi,

F9 is usually a faulty oven sensor. Normal for the oven sensor would be 1050 to 1100 ohms at room temperature.

Here's the oven sensor for your model(Video included in part link to remove and replace it):
EBG61305805 Thermistor, Ptc


To verify that, you can ohm test the oven sensor first.

Disconnect power to the range and ohm test the oven sensor, watch this video:

 

Jake

Appliance Tech - Admin
Staff member
Joined
Aug 24, 2004
Messages
137,440
Location
Vicksburg Junction, Arizona
Also, When you turn the oven ON do you see a glow at the bottom of the oven from the BAKE ignitor, but the gas flame is not firing?

Rick helped another member here with that issue:

Here's the BAKE glow bar igniter for your model:
MEE61841401 Ignitor


If you see no glow from the BAKE ignitor, take the electrical connector off the BAKE ignitor and use a multimeter and put the meter probes in it and turn the oven on BAKE and see if the meter gets 120 volts, if so then its definitely a bad BAKE ignitor.
 
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