14
Troubleshooting Guide
Model 20
Section 9
Troubleshooting Guide
PROBLEM
PROBABLE CAUSE
REMEDY
1. Solution takes excessively
long to freeze to a slush
consistency.
a. Solution added to removable basin
was above 4
_
C (40
_
F).
a. Solution added to the removable
basin should be below 4
_
C
(40
_
F).
b. Improper use of heat transfer
medium.
b. Heat transfer medium must be a
good conductor of heat and
pre--cooled prior to adding the
solution.
c. Shortage of refrigerant as
evidenced by low suction and
head pressures.
c. Call a service technician.
d. Solution was left in removable
basin unattended. No scraping.
Ice formed on basin walls;
therefore, solution in center of
basin remains liquid.
d. Constant scraping and agitating is
necessary to refrigerate the
solution.
e. Faulty automatic expansion valve
as evidenced by suction pressure
not stabilizing at 3 -- 4 PSI (21 --
28 kPa). (Pressure fluctuates.)
e. Call a service technician.
f. Dirty condenser as evidenced by
high head pressure.
f. Clean the condenser regularly.
g. Compressor is going out on
overload.
g. Allow the compressor to cool. It
will automatically start up again.
Check to make sure the unit is the
only appliance running on the
same 15A circuit.
h. Fan does not operate as
evidenced by high head pressure.
h. Call a service technician.
i. Oil is trapped in copper tubing
around the insulated evaporator.
i. Call a service technician.
2. Unit does not operate
after control switch is
pressed (no fan or
compressor operation).
a. Unit is unplugged.
a. Plug into appropriate wall
receptacle.
b. Control switch is defective.
b. Call a service technician to
replace the control switch.
c. Faulty coil in compressor
contactor as evidenced by line
voltage at the coil, but no
compressor or fan operation.
c. Call a service technician to
replace the compressor contactor.
Содержание Saline 20
Страница 1: ...Model 20 Saline Slush Freezer Operating Instructions 030990 M 7 23 01...
Страница 4: ...Table of Contents Model 20 Notes...
Страница 16: ...12 Refrigeration Schematic Model 20 Section 7 Refrigeration Schematic...
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