Refrigeration System Diagnosis Guide; Compressor Specifications - U-Line 1224RF User Manual & Service Manual

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USER GUIDE
System Diagnosis Guide

REFRIGERATION SYSTEM DIAGNOSIS GUIDE

System Suction
Condition Pressure
Normal Normal
Overcharge Higher than
normal
Undercharge Lower than
normal
Partial Somewhat
Restriction lower than
normal
vacuum
Complete In deep
Restriction vacuum
No Gas 0 PSIG to 25"

Compressor Specifications

DANGER
Electrocution can cause death or serious injury.
Burns from hot or cold surfaces can cause
serious injury. Take precautions when servicing
this unit.
Disconnect the power source.
Do not stand in standing water when working
around electrical appliances.
Make sure the surfaces you touch are not hot or
frozen.
Suction Compressor
Line Discharge
Slightly below Very hot
room
temperature
Very cold Slightly warm
may frost to hot
heavily
Warm-near Hot
room
temperature
Warm - near Very hot
room
temperature
Room Room
temperature temperature
(cool) (cool)
Room Cool to hot
temperature
(cool)
Condenser Capillary
Tube
Very hot Warm
Hot to warm Cool
Warm Warm
Top passes Room
warm - Lower temperature
passes cool (cool) or
(near room colder
temperature)
due to liquid
Room Room
temperature temperature
(cool) (cool)
Room Room
temperature temperature
(cool) (cool)
Do not touch a bare circuit board unless you are
wearing an anti-static wrist strap that is
grounded to an electrical ground or grounded
water pipe.
Handle circuit boards carefully and avoid
touching components.
To measure the start winding resistance, measure
across the C and S pins.
To measure the run winding resistance, measure
across the C and R pins.
Also check S to R and you should get the sum of the
run and start windings.
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Ordering Replacement Parts 1
Evaporator Wattage
Cold Normal
Cold Higher than
normal
Extremely cold Lower than
near inlet - normal
Outlet below
room
temperature
Extremely cold Lower than
near inlet - normal
Outlet below
room
temperature
backing up
No refrigeration Lower than
normal
No refrigeration Lower than
normal
System Diagnosis Guide 1