108 Part Number STH034 3/12
Gear motor
and
compressor
start, but
operate
intermit-
tently.
Pressure Switch Dirty air filter or
condenser
Clean
Ambient
temperature too
warm
Get cooler
Fan not rotating See “Other” table,
“Abnormal noise,” “Fan
Motor”
Refrigerant
overcharged
Recharge
Refrigerant line or
components
plugged
Clean and replace drier
Bad contacts Check for continuity and
replace
Loose connections Tighten
Gear motor
and
compressor
start but no
ice is
produced.
Refrigerant Line Gas leaks Check for leaks with a
leak detector. Reweld
leak, replace drier and
charge with refrigerant.
The amount of refrigerant
is marked on nameplate
or label
Refrigerant line
clogged
Replace the clogged
component
Shut-Off Values
on Condensing
Unit
Closed Open
Problem Possible Cause Remedy
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