Oven Does Not Heat (Including F-9, F-19 Error) - LG LDG3015SB Service Manual

CHECKING FLOW CHART BY FAILURE

Oven does not heat (including F-9, F-19 Error)

No heating
Disconnect power
Check the electric wiring
1. Harness of Relay connection.
2. Each Igniter's connection.
3. Oven System and Relay PCB connection(CN11, CN12)
UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil
UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil
UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil
UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil UP_Broil
GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE
GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE
GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE
GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE GAS_VALVE
LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL
LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL
LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL
LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL LOW_BROIL
LOW_BROIL LOW_BROIL LOW_BROIL
Harness connection check
Normal?
1
UPPER
UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE
UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE
UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE
UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE UP_BAKE
No
Yes
Relay PCB Wiring
Fix or replace the lead wire
10-5
END