LG LV-D4821CL User Manual download pdf (Page 24)

9.

Indoor

left-right

swing

Handset

control

Change

function

will

not

function

Faulty

swing

motor

Replace

Connector

plug

Replace

or

repair

Relay

on

PCB

Replace

relay

or

PCB

10.

Power

on

but

indoor

fan

Handset

control

Change

function

lost

Hi

or

Med

or

Low

Faulty

motor

Replace

speed

Connector

plug

Replace

or

repair

3

relays

on

PCB

Replace

relay

11.

Condenser

fan

short

Outdoor

sensor

See

control

functions

cycles

on

cooling

Unit

location

Check

for air

recirculation

12.

High

discharge

pressure

Indoor

sensor

faulty

Replace

cooling

cycle

Dirty

condenser

coil

Clean

Gas

overcharge

Reduce

charge

Air

recirculation

Move

unit

Faulty

motor

Replace

Cap

tube

blocked

Replace

16.

System

not

cooling

PCB

relay

Replace

or

change

PCB

Low

gas

charge

Add

gas

and

leak

test

17.

High

suction

/

low

Reversing

valve

sticking

Replace

discharge

pressure

18.

Outdoor

coil

icing

up

Ambient

temp

low

Wait

for

de

-

ice

initiation

Dirty

condenser

coil

Clean

Outdoor

de

-

ice

sensor

faulty

Replace

PCB

faulty

Replace

Low

gas

charge

(heating)

Add

gas

and

leak

test

19.

Indoor

coil

icing

up

Indoor

set

point

too

low

Adjust

temperature

Dirty

filter

Clean

filter

Faulty

indoor

sensor

Replace

PCB

faulty

Replace

Indoor

fan

not

working

Replace

Low

gas

charge

Replace

Add

gas

and

leak

test

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