CHAPTER IV - TROUBLE SHOOTING
SECTION I ELECTRICAL AND REFRIGERATION
1 - General
2 - Electrical
Problem: Compressor Will Not Run
Problem: Compressor Runs But Will
SECTION II WATER SYSTEM
1 - Problem: Restricted Or No Water Flow
2 - Problem: Continuous Water Flow
3 - Problem: Improper Drainage
SECTION III ADJUSTMENT
1 - Controlling Thermostat
2 - Water Regulating Valve
SECTION IV FIELD REPLACEABLE PARTS
SECTION V FACTORY AUTHORIZED
SECTION I - ELECTRICAL AND REFRIGERATION
Before attempting to trouble shoot the refrigeration
system, determine the demand made upon the cooler.
How much water is being dispensed and how frequently.
Examine the installation and determine if proper
ventilation has been allowed. The location is important
since the cooler should never be near a steam line, hot
air ventilator or high wattage electrical system. Check
the electrical supply to cooler. When these procedures
fail to remedy the trouble, the following will be
To test the electrical components, it is necessary to
remove the front panel or wrap-around cabinet to
provide access to the machinery compartment.
Problem - Compressor will not run.
Condition - The water cooler is dispensing warm water
(over 600 F) and the compressor fails to start.
Solution - Electrical Supply
Test electrical supply since there may be a blown
Solution - Thermostat
With electrical supply off, test for continuity with an
thermostat. Failure of continuity test indicates the
power element has lost its charge. Replace
With electrical supply off, carefully inspect wiring for
burnt insulation since it is an in-
dication of a short. Always replace poor or defective
Condition - Fan motor operates, but compressor fails to
start. With electrical power off, proceed as follows.
Solution - Overload
Touch the compressor with your hand. If abnormally
warm the compressor may be "off" due to
overheating and the overload has tripped. Inspect
and clean the condenser as it may be the cause of
this condition. After waiting ten minutes for
compressor to cool. restore electrical power and
check for compressor operation. When compressor
is cool to the touch, a continuity test with an
ohmmeter should be made across the terminals of
the overload. Failure of continuity test indicates a
Solution - Relay
The relay can be tested by the substitution method.
Remove and replace with factory replacement.
Solution - Capacitor
When used, the capacitor can be tested by the
substitution method. Remove and replace with
factory replacement capacitor of the same rating.
Solution - Compressor
After testing the electrical components and the
compressor fails to run, the compressor motor or the
refrigeration system may have a defect. The water
cooler in warranty should be repaired at an
authorized repair station.
Condition - With water flowing and electrical supply on,
the compressor is cycling on the overload ( has an
intermittent clicking sound ) and the fan motor will not
run, indicates the fan motor is inoperative, since it is
wired in parallel with the compressor motor.
Solution - Fan Motor
Disconnect electrical supply and turn fan by hand.
The fan must rotate freely. Any evidence of binding
or the motor will not run, replace fan motor.