LG LRE3193BD, Service Manual

Page: 66 / 78

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TROUBLE SHOOTING
PROBLEMS POSSIBLE CAUSES SOLUTIONS
Oven not operating. • Bad main PCB
• Power outage
• Test and/or replace PCB
➞
Refer to the page 9-1~9-3
• Verify power is present at unit.
• Verify that the circuit breaker is not tripped
• Replace household fuse capacity
Oven element does not heat. • No line voltage
• Loose or bad wiring.
• Defective element.
• Bad main PCB or relay PCB
• Check circuit breaker.
• Repair or replace wiring(see wiring diagrams).
• Test and/or replace element.
• Test and/or replace PCB
Surface element barely heats
Surface element will not heat
Higher than low-medium
• Loose or bad wiring connection at element or
terminal block.
• Defective Surface units control PCB
• Defective Surface element.
• Low line voltage
• Verify all connections are clean and tight, replace broken wires
• Test and/or replace main PCB
• Test and/or replace element.
• Line voltage should be minimum 240-volts. Of necessary,
electrician should repair cause for low line voltage
Frequent cycling of surface Element or
warming zone
• This is normal • The element will cycle on and off to maintain the heat setting
“HS” (Hot surface)Warning message
does not light up
• Defective main PCB • Test and/or replace main PCB
Oven light fails to operate. • Failed oven lamp.
• Circuit breaker or fuse is open
• Loose or bad wiring
• Defective light socket.
• Defective door switch
• Check lamp and Replace is necessary
• Check circuit breaker or replace fuse.
• Repair or replace wiring
• Check light socket for continuity.
• Test and/or replace door switch