LG LDE3017ST Service Manual page 61

CHECKING FLOW CHART BY FAIRURE
Oven does not heat (including F-9, F-19 Error)
Measure the Resistor of each heater Between the DLB
Relay's L2 and each heater Relay's Harness point of Figure 1
( and )
(measure the resistance after cooling down)
Normal
Resistor Min
upper Bake 22.0
upper broil 45.0
lower conv. 25.0
lower bake 20.0
lower broil 12.0
UPPER
Bake
LOWER
Bake
1
Max
29.0
55.0
32.0
25.0
17.0
Broil
Conv.
Broil
2
UPPER
LOWER
9-7