LG LV-C362FLA0, Руководство по обслуживанию

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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Troubleshooting
Problem Checklist Remedy List
1. Nothing works Power supply to unit Re-set circuit breaker or change fuse
PCB fuse Change fuse
Interconnecting wiring Look for break in cable or loose connection
PCB varistor Replace PCB
Transformer Replace PCB
2. Power on but system Re-set control switch Re-set
will not function Handset control Change batteries ( or hand set )
3. Power on but indoor Mode on hand set Change function
will not function Power on fan terminal (pcb) No power check relay, if faulty replace
Evaporator sensor If short circuit, replace
Connector plug Repair or replace
Motor overload Wait to reset and check amps
Faulty motor Replace
Evaporator frozen Defrost and check filter / gas charge & de-ice sensor
Motor capacitor Replace
4. Power on but compressor Room temp set point Adjust on hand set
will not function Relay on PCB Replace relay or PCB
Comp contactor If power on contactor coil, replace contactor
Comp overload Re set, check amps and set point
Indoor sensor(de-ice ) See control functions
Comp internal overload Allow comp to cool down, check gas
Compressor terminals Check for good connection
5. Power on but outdoor De-ice sensor (heating) Wait for defrost to terminate
fan will not function Ambient temp low Check gas pressure
Outdoor sensor See control functions
Indoor coil too hot Clean filter
Fan relay on PCB Replace relay or PCB
Faulty motor Replace motor
6. Power on but indoor Connector plug Replace or repair
manual key will not Faulty switch Replace switch or PCB
function
7. Power on but indoor Connector plug Replace or repair
display will not function Faulty display Replace display or PCB
Reset switch position Correct or operate once
8. Indoor up-down louver Handset control Change function
will not function Faulty stepping motor Replace
Connector plug Replace or repair