LG HBLG6000R Service Manual - Page 25

Unit undersized

Page 25 highlights

COMPLAINT Compressor cycles on overload CAUSE Fan motor Condenser air flow restriction Insufficient cooling. Excessive noise. Condenser fins (damaged) Capacitor Wiring Refrigeration system Air filter Unit undersized Blower or fan Copper tubing REMEDY If not running, determine the cause. Replace if required. Remove the cabinet, inspect the interior surface of the condenser. If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the interior base before re-assembling. If the condenser fins are closed over a large area on the coil surface, head pressures will increase, causing the compressor to cycle. Straighten the fins or replace the coil. Test the capacitor. Check the terminals. If loose, repair or replace. Check the system for a restriction. If restricted, clean or replace. Determine if the unit is properly sized for the area to be cooled. Check the set screw, or clamp. If loose or missing, correct. If the blower or fan is hitting scroll or barrier, rearrange the air handling parts. Remove the cabinet and carefully rearrange the tubing not to contact the cabinet, compressor, shroud, and barrier. -25-

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25
COMPLAINT
CAUSE
REMEDY
Compressor cycles on
Fan motor
If not running, determine the cause. Replace if
overload
required.
Condenser air flow
Remove the cabinet, inspect the interior surface
restriction
of the condenser. If restricted, clean carefully
with a vacuum cleaner (do not damage fins) or
brush. Clean the interior base before
re-assembling.
Condenser fins
If the condenser fins are closed over a large
(damaged)
area on the coil surface, head pressures will
increase, causing the compressor to cycle.
Straighten the fins or replace the coil.
Capacitor
Test the capacitor.
Wiring
Check the terminals. If loose, repair or replace.
Refrigeration system
Check the system for a restriction.
Insufficient cooling.
Air filter
If restricted, clean or replace.
Unit undersized
Determine if the unit is properly sized for the
area to be cooled.
Excessive noise.
Blower or fan
Check the set screw, or clamp. If loose or miss-
ing, correct. If the blower or fan is hitting scroll
or barrier, rearrange the air handling parts.
Copper tubing
Remove the cabinet and carefully rearrange the
tubing not to contact the cabinet,
compressor, shroud, and barrier.