Jet Spray (Cold) Training Manual
© 2000, IMI Cornelius Inc.
- 17 -
5. Unit runs OK but short-
cycles on
A. Overload protector
B. Thermostat
A. See “Compressor starts
but then short-cycles
on overload protector”
above
B. Widen differential
6. Unit operates long or
continuously
A. Refrigerant low
B. Control contacts stuck
closed
C. Refrigerated or air con-
ditioned space has
excessive load or poor
insulation
D. System is inadequate to
handle the load
E. Evaporator coil iced
F. Restriction in refrigera-
tion system
G. Dirty condenser
H. Filter dirty
A. Fix leak and charge
B. Clean contacts or
replace control
C. Correct problem
D. Replace with larger
system
E. Defrost
F. Determine location and
remove
G. Clean condenser
H. Clean or replace filter
7. Relay defective or
burned out
A. Incorrect relay
B. Incorrect mounting
angle
C. Line voltage too high
or low
D. Excessive short cycling
E. Relay mounting loose
F. Incorrect run capacitor
A. Replace with correct
relay
B. Remount in correct
position
C. Correct problem
D. Correct problem (see
“Unit runs OK but
short-cycles on” above)
E. Mount correctly
F. Replace with correct
capacitor
8. Suction line frosted or
sweating
A. Refrigerant overcharge
A. Correct charge
9. Liquid line frosted or
sweating
A. Restriction in dehydra-
tor or strainer
A. Replace bad part
PROBLEM (fault)
CAUSE (diagnosis)
ACTION (remedy)
TROUBL
E
SH
OOTI
N
G
