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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
SYMPTON INDEX (Continued)
EQUIPMENT
MALFUNCTION
TABLE
Air Conditioner
Partial frosting of coil - failure
(Continued)
to cool
No frosting of coil - failure to
cool
Complete frosting of coil - failure
to cool
Too much cooling
Drinking Fountain
Water leaks
Water not cold or not cold enough
Little or no water from bubbler
valve
Bubbler valve stream too high or
too low
Compressor runs continuously
Compressor inoperative
Milk Dispenser
Compressor will not start - no hum
Compressor will not start - hums but
cycles on overload
Compressor starts but starting
winding remains in circuit
Compressor starts and runs but cycles
on overload
Compressor tries to start when
control closed but cuts out on
overload, finally starts after
several attempts
Compressor starts but immediately
cuts out on overload
Relay burned out
Head pressure too high
Head pressure too low
Compressor running cycle too long or
operating continuously
Milk can compartment temperature too
high
Noisy unit
Evaporator freezes but defrosts
while compressor is running
Suction line sweating or frosting
4-6
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