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No cooling (con't)
No water dispensed,
concentrate only.
720901120
Quantum Series Installation and Service Manual
Defective start relay located
on upper rear shelf
inside dispenser
Compressor starts but
hums and trips overload
Compressor starts but does
not switch off of start
winding
Compressor short cycles on
overload
Refrigerant leak
No water to dispenser
Water supply line inside
refrigerated cabinet dis-
connected from pump
platform
Water solenoid located on
pump platform clogged
or defective
Main water solenoid/
strainer located at base
of dispenser is clogged,
binding or defective
Water supply pressure is
greater than 80 psi (5.5
bar)
12 -
-
There should be line voltage on the
black wire of the relay when
there is line voltage present on
the orange OR yellow wire.
Replace relay if it fails this test.
Seized or shorted compressor,
replace.
Relay or compressor is defective.
Test and replace faulty item.
Excessively high discharge pres-
sure due to restricted con-
denser or inoperative
condenser fan motor
Repair leak. Evacuate and
recharge system.
Restore water
Reconnect
Disassemble and clean solenoid.
Replace if necessary.
Remove and clean strainer. Con-
firm 28VDC is present at sole-
noid during dispense. Confirm
solenoid coil is not open. Disas-
semble and clean solenoid.
Add external regulator and lower
pressure to 50 psi (3.5 bar)
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