U-Line 1000 SERIES User Guide

USER GUIDE
Troubleshooting - Extended 2
u-line.com
SAFETY • INSTALLATION & INTEGRATION • OPERATING INSTRUCTIONS • MAINTENANCE • SERVICE
REFRIGERATION SYSTEM DIAGNOSIS GUIDE
NORMAL OPERATING SOUNDS
All models incorporate rigid foam insulated cabinets to
provide high thermal efficiency and maximum sound
reduction for its internal working components. Despite this
technology, your model may make sounds that are
unfamiliar.
Normal operating sounds may be more noticeable because
of the unit’s environment. Hard surfaces such as cabinets,
wood, vinyl or tiled floors and paneled walls have a
tendency to reflect normal appliance operating noises.
Listed below are common refrigeration components with
brief description of the normal operating sounds they
make. NOTE: Your product may not contain all the
components listed.
• Compressor: The compressor makes a hum or pulsing
sound that may be heard when it operates.
• Evaporator: Refrigerant flowing through an evaporator
may sound like boiling liquid.
• Condenser Fan: Air moving through a condenser may
be heard.
• Automatic Defrost Drain Pan: Water may be heard
dripping or running into the drain pan when the unit is
in the defrost cycle.
COMPRESSOR INFORMATION
Cooling process
Refrigerant is pumped from the compressor to the
condenser as a high pressure, high temperature vapor.
As the refrigerant cools in the high pressure condenser,
the vapor condenses to liquid. During this phase change,
a great amount of heat is rejected with the help of the
condenser fan.
The liquid then flows to the dryer where it is strained and
filtered.
From the dryer, the refrigerant flows through the capillary
tube which meters the liquid refrigerant to the evaporator.
System
Condition
Suction
Pressure
Suction
Line
Compressor
Discharge
Condenser Capillary
Tube
Evaporator Wattage
Normal Normal Slightly below
room
temperature
Very hot Very hot Warm Cold Normal
Overcharge Higher than
normal
Very cold -
may frost
heavily
Slightly warm
to hot
Hot to warm Cool Cold Higher than
normal
Undercharge Lower than
normal
Warm -
near room
temperature
Hot Warm Warm Extremely cold
near inlet -
outlet below
room
temperature
Lower than
normal
Partial
Restriction
Somewhat
lower than
normal -
in vacuum
Warm -
near room
temperature
Very hot Top passes
warm lower
passes cool
(near room
temperature due
to liquid
Room
temperature
(cool) or colder
Extremely cold
near inlet -
outlet below
room
temperature
backing up
Lower than
normal
Complete
Restriction
In deep
vacuum
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
Room
temperature
(cool)
No refrigeration Lower than
normal
No Gas 0 PSIG to 25" Room
temperature
(cool)
Cool to hot Room
temperature
(cool)
Room
temperature
(cool)
No refrigeration Lower than
normal

U-Line 1000 SERIES Specifications

General

Brand	U-Line
Model	1000 SERIES
Category	Refrigerator
Language	English