LG LP-10091CL/XL Service Manual page 45

8.3 The unit is working, but not cooling and heating sufficiently
(Both blower and compressor are working)
WHAT TROUBLED
Load
Air flow
Short air volume
Refrigerant
Air passage
Air filter
8.4 All the functions are performed normally, but very noisily and
much vibratively.
WHAT TROUBLED
Compressor
Blower
Screws
COMPLAINTS
Much heat load
Obstacle disturbs Intake
of uniform wind.
Reverse rotation of
blower.
Shortage in the charged
refrigerant.
Improper or foreign bodies
Clogged with dust
COMPLAINTS
Liquid refrigerant flooding
back from the evaporator.
Compressor shipping
bracket is not removed.
Faulty discharge valve
and suction valve.
Fan broken.
Other materials intruded.
Looseness or fail-off of
screws
HOW TO CHECK
Heat load increased.
Window or door has many
cracks or gaps.
Checking
Checking
Coil inlet pipe is frosted
Checking
Checking
HOW TO CHECK
• Check for refrigerant over-charge.
• Check to see if the intaking air temperature is
extremely cold.
• Check for insufficient air flow quantity.
• Checking
• Checking
Checking
Checking
– 45 –
REMEDY
Do necessary disposal
respectively.
Correct it.
Correct it.
Replenish it.
(Repair the leakage spot).
Correct or clear the
foreign bodies.
Cleaning
REMEDY
• Remove the shipping
bracket.
• Replace the
compressor
• Repair or replace it.
• Clear the other
material
Repair